diff options
| author | Tim Redfern <tim@eclectronics.org> | 2013-08-26 15:10:18 +0100 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2013-08-26 15:10:18 +0100 |
| commit | 150c9823e71a161e97003849cf8b2f55b21520bd (patch) | |
| tree | 3559c840cf403d1386708b2591d58f928c7b160d /ffmpeg1/libavcodec/mpegvideo.c | |
| parent | b4b1e2630c95d5e6014463f7608d59dc2322a3b8 (diff) | |
adding ffmpeg specific version
Diffstat (limited to 'ffmpeg1/libavcodec/mpegvideo.c')
| -rw-r--r-- | ffmpeg1/libavcodec/mpegvideo.c | 3365 |
1 files changed, 3365 insertions, 0 deletions
diff --git a/ffmpeg1/libavcodec/mpegvideo.c b/ffmpeg1/libavcodec/mpegvideo.c new file mode 100644 index 0000000..46f829c --- /dev/null +++ b/ffmpeg1/libavcodec/mpegvideo.c @@ -0,0 +1,3365 @@ +/* + * The simplest mpeg encoder (well, it was the simplest!) + * Copyright (c) 2000,2001 Fabrice Bellard + * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> + * + * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * The simplest mpeg encoder (well, it was the simplest!). + */ + +#include "libavutil/avassert.h" +#include "libavutil/imgutils.h" +#include "avcodec.h" +#include "dsputil.h" +#include "h264chroma.h" +#include "internal.h" +#include "mathops.h" +#include "mpegvideo.h" +#include "mjpegenc.h" +#include "msmpeg4.h" +#include "xvmc_internal.h" +#include "thread.h" +#include <limits.h> + +//#undef NDEBUG +//#include <assert.h> + +static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_h263_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale); +static void dct_unquantize_h263_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale); + + +//#define DEBUG + + +static const uint8_t ff_default_chroma_qscale_table[32] = { +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 +}; + +const uint8_t ff_mpeg1_dc_scale_table[128] = { +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, +}; + +static const uint8_t mpeg2_dc_scale_table1[128] = { +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, +}; + +static const uint8_t mpeg2_dc_scale_table2[128] = { +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, +}; + +static const uint8_t mpeg2_dc_scale_table3[128] = { +// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, +}; + +const uint8_t *const ff_mpeg2_dc_scale_table[4] = { + ff_mpeg1_dc_scale_table, + mpeg2_dc_scale_table1, + mpeg2_dc_scale_table2, + mpeg2_dc_scale_table3, +}; + +const enum AVPixelFormat ff_pixfmt_list_420[] = { + AV_PIX_FMT_YUV420P, + AV_PIX_FMT_NONE +}; + +static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type, + int (*mv)[2][4][2], + int mb_x, int mb_y, int mb_intra, int mb_skipped) +{ + MpegEncContext *s = opaque; + + s->mv_dir = mv_dir; + s->mv_type = mv_type; + s->mb_intra = mb_intra; + s->mb_skipped = mb_skipped; + s->mb_x = mb_x; + s->mb_y = mb_y; + memcpy(s->mv, mv, sizeof(*mv)); + + ff_init_block_index(s); + ff_update_block_index(s); + + s->dsp.clear_blocks(s->block[0]); + + s->dest[0] = s->current_picture.f.data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16; + s->dest[1] = s->current_picture.f.data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift); + s->dest[2] = s->current_picture.f.data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift); + + assert(ref == 0); + ff_MPV_decode_mb(s, s->block); +} + +const uint8_t *avpriv_mpv_find_start_code(const uint8_t *av_restrict p, + const uint8_t *end, + uint32_t *av_restrict state) +{ + int i; + + assert(p <= end); + if (p >= end) + return end; + + for (i = 0; i < 3; i++) { + uint32_t tmp = *state << 8; + *state = tmp + *(p++); + if (tmp == 0x100 || p == end) + return p; + } + + while (p < end) { + if (p[-1] > 1 ) p += 3; + else if (p[-2] ) p += 2; + else if (p[-3]|(p[-1]-1)) p++; + else { + p++; + break; + } + } + + p = FFMIN(p, end) - 4; + *state = AV_RB32(p); + + return p + 4; +} + +/* init common dct for both encoder and decoder */ +av_cold int ff_dct_common_init(MpegEncContext *s) +{ + ff_dsputil_init(&s->dsp, s->avctx); + ff_h264chroma_init(&s->h264chroma, 8); //for lowres + ff_hpeldsp_init(&s->hdsp, s->avctx->flags); + ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample); + + s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c; + s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c; + s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c; + s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c; + s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c; + if (s->flags & CODEC_FLAG_BITEXACT) + s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact; + s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c; + +#if ARCH_X86 + ff_MPV_common_init_x86(s); +#elif ARCH_ALPHA + ff_MPV_common_init_axp(s); +#elif ARCH_ARM + ff_MPV_common_init_arm(s); +#elif HAVE_ALTIVEC + ff_MPV_common_init_altivec(s); +#elif ARCH_BFIN + ff_MPV_common_init_bfin(s); +#endif + + /* load & permutate scantables + * note: only wmv uses different ones + */ + if (s->alternate_scan) { + ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan); + ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan); + } else { + ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct); + ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct); + } + ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan); + ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan); + + return 0; +} + +int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize) +{ + int alloc_size = FFALIGN(FFABS(linesize) + 64, 32); + + // edge emu needs blocksize + filter length - 1 + // (= 17x17 for halfpel / 21x21 for h264) + // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9 + // at uvlinesize. It supports only YUV420 so 24x24 is enough + // linesize * interlaced * MBsize + FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 4 * 24, + fail); + + FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 4 * 16 * 2, + fail) + s->me.temp = s->me.scratchpad; + s->rd_scratchpad = s->me.scratchpad; + s->b_scratchpad = s->me.scratchpad; + s->obmc_scratchpad = s->me.scratchpad + 16; + + return 0; +fail: + av_freep(&s->edge_emu_buffer); + return AVERROR(ENOMEM); +} + +/** + * Allocate a frame buffer + */ +static int alloc_frame_buffer(MpegEncContext *s, Picture *pic) +{ + int r, ret; + + pic->tf.f = &pic->f; + if (s->codec_id != AV_CODEC_ID_WMV3IMAGE && + s->codec_id != AV_CODEC_ID_VC1IMAGE && + s->codec_id != AV_CODEC_ID_MSS2) + r = ff_thread_get_buffer(s->avctx, &pic->tf, + pic->reference ? AV_GET_BUFFER_FLAG_REF : 0); + else { + pic->f.width = s->avctx->width; + pic->f.height = s->avctx->height; + pic->f.format = s->avctx->pix_fmt; + r = avcodec_default_get_buffer2(s->avctx, &pic->f, 0); + } + + if (r < 0 || !pic->f.data[0]) { + av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n", + r, pic->f.data[0]); + return -1; + } + + if (s->avctx->hwaccel) { + assert(!pic->hwaccel_picture_private); + if (s->avctx->hwaccel->priv_data_size) { + pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size); + if (!pic->hwaccel_priv_buf) { + av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n"); + return -1; + } + pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data; + } + } + + if (s->linesize && (s->linesize != pic->f.linesize[0] || + s->uvlinesize != pic->f.linesize[1])) { + av_log(s->avctx, AV_LOG_ERROR, + "get_buffer() failed (stride changed)\n"); + ff_mpeg_unref_picture(s, pic); + return -1; + } + + if (pic->f.linesize[1] != pic->f.linesize[2]) { + av_log(s->avctx, AV_LOG_ERROR, + "get_buffer() failed (uv stride mismatch)\n"); + ff_mpeg_unref_picture(s, pic); + return -1; + } + + if (!s->edge_emu_buffer && + (ret = ff_mpv_frame_size_alloc(s, pic->f.linesize[0])) < 0) { + av_log(s->avctx, AV_LOG_ERROR, + "get_buffer() failed to allocate context scratch buffers.\n"); + ff_mpeg_unref_picture(s, pic); + return ret; + } + + return 0; +} + +static void free_picture_tables(Picture *pic) +{ + int i; + + av_buffer_unref(&pic->mb_var_buf); + av_buffer_unref(&pic->mc_mb_var_buf); + av_buffer_unref(&pic->mb_mean_buf); + av_buffer_unref(&pic->mbskip_table_buf); + av_buffer_unref(&pic->qscale_table_buf); + av_buffer_unref(&pic->mb_type_buf); + + for (i = 0; i < 2; i++) { + av_buffer_unref(&pic->motion_val_buf[i]); + av_buffer_unref(&pic->ref_index_buf[i]); + } +} + +static int alloc_picture_tables(MpegEncContext *s, Picture *pic) +{ + const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1; + const int mb_array_size = s->mb_stride * s->mb_height; + const int b8_array_size = s->b8_stride * s->mb_height * 2; + int i; + + + pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2); + pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride); + pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) * + sizeof(uint32_t)); + if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf) + return AVERROR(ENOMEM); + + if (s->encoding) { + pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t)); + pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t)); + pic->mb_mean_buf = av_buffer_allocz(mb_array_size); + if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf) + return AVERROR(ENOMEM); + } + + if (s->out_format == FMT_H263 || s->encoding || + (s->avctx->debug & FF_DEBUG_MV) || s->avctx->debug_mv) { + int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t); + int ref_index_size = 4 * mb_array_size; + + for (i = 0; mv_size && i < 2; i++) { + pic->motion_val_buf[i] = av_buffer_allocz(mv_size); + pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size); + if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) + return AVERROR(ENOMEM); + } + } + + return 0; +} + +static int make_tables_writable(Picture *pic) +{ + int ret, i; +#define MAKE_WRITABLE(table) \ +do {\ + if (pic->table &&\ + (ret = av_buffer_make_writable(&pic->table)) < 0)\ + return ret;\ +} while (0) + + MAKE_WRITABLE(mb_var_buf); + MAKE_WRITABLE(mc_mb_var_buf); + MAKE_WRITABLE(mb_mean_buf); + MAKE_WRITABLE(mbskip_table_buf); + MAKE_WRITABLE(qscale_table_buf); + MAKE_WRITABLE(mb_type_buf); + + for (i = 0; i < 2; i++) { + MAKE_WRITABLE(motion_val_buf[i]); + MAKE_WRITABLE(ref_index_buf[i]); + } + + return 0; +} + +/** + * Allocate a Picture. + * The pixels are allocated/set by calling get_buffer() if shared = 0 + */ +int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared) +{ + int i, ret; + + if (pic->qscale_table_buf) + if (pic->mbskip_table_buf->size < s->mb_stride * s->mb_height + 2 || + pic->qscale_table_buf->size < s->mb_stride * (s->mb_height + 1) + 1 + s->mb_stride) + free_picture_tables(pic); + + if (shared) { + assert(pic->f.data[0]); + pic->shared = 1; + } else { + assert(!pic->f.data[0]); + + if (alloc_frame_buffer(s, pic) < 0) + return -1; + + s->linesize = pic->f.linesize[0]; + s->uvlinesize = pic->f.linesize[1]; + } + + if (!pic->qscale_table_buf) + ret = alloc_picture_tables(s, pic); + else + ret = make_tables_writable(pic); + if (ret < 0) + goto fail; + + if (s->encoding) { + pic->mb_var = (uint16_t*)pic->mb_var_buf->data; + pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data; + pic->mb_mean = pic->mb_mean_buf->data; + } + + pic->mbskip_table = pic->mbskip_table_buf->data; + pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1; + pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1; + + if (pic->motion_val_buf[0]) { + for (i = 0; i < 2; i++) { + pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4; + pic->ref_index[i] = pic->ref_index_buf[i]->data; + } + } + + return 0; +fail: + av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n"); + ff_mpeg_unref_picture(s, pic); + free_picture_tables(pic); + return AVERROR(ENOMEM); +} + +/** + * Deallocate a picture. + */ +void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic) +{ + int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean); + pic->period_since_free = 0; + + pic->tf.f = &pic->f; + /* WM Image / Screen codecs allocate internal buffers with different + * dimensions / colorspaces; ignore user-defined callbacks for these. */ + if (s->codec_id != AV_CODEC_ID_WMV3IMAGE && + s->codec_id != AV_CODEC_ID_VC1IMAGE && + s->codec_id != AV_CODEC_ID_MSS2) + ff_thread_release_buffer(s->avctx, &pic->tf); + else + av_frame_unref(&pic->f); + + av_buffer_unref(&pic->hwaccel_priv_buf); + + memset((uint8_t*)pic + off, 0, sizeof(*pic) - off); +} + +static int update_picture_tables(Picture *dst, Picture *src) +{ + int i; + +#define UPDATE_TABLE(table)\ +do {\ + if (src->table &&\ + (!dst->table || dst->table->buffer != src->table->buffer)) {\ + av_buffer_unref(&dst->table);\ + dst->table = av_buffer_ref(src->table);\ + if (!dst->table) {\ + free_picture_tables(dst);\ + return AVERROR(ENOMEM);\ + }\ + }\ +} while (0) + + UPDATE_TABLE(mb_var_buf); + UPDATE_TABLE(mc_mb_var_buf); + UPDATE_TABLE(mb_mean_buf); + UPDATE_TABLE(mbskip_table_buf); + UPDATE_TABLE(qscale_table_buf); + UPDATE_TABLE(mb_type_buf); + for (i = 0; i < 2; i++) { + UPDATE_TABLE(motion_val_buf[i]); + UPDATE_TABLE(ref_index_buf[i]); + } + + dst->mb_var = src->mb_var; + dst->mc_mb_var = src->mc_mb_var; + dst->mb_mean = src->mb_mean; + dst->mbskip_table = src->mbskip_table; + dst->qscale_table = src->qscale_table; + dst->mb_type = src->mb_type; + for (i = 0; i < 2; i++) { + dst->motion_val[i] = src->motion_val[i]; + dst->ref_index[i] = src->ref_index[i]; + } + + return 0; +} + +int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src) +{ + int ret; + + av_assert0(!dst->f.buf[0]); + av_assert0(src->f.buf[0]); + + src->tf.f = &src->f; + dst->tf.f = &dst->f; + ret = ff_thread_ref_frame(&dst->tf, &src->tf); + if (ret < 0) + goto fail; + + ret = update_picture_tables(dst, src); + if (ret < 0) + goto fail; + + if (src->hwaccel_picture_private) { + dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf); + if (!dst->hwaccel_priv_buf) + goto fail; + dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data; + } + + dst->field_picture = src->field_picture; + dst->mb_var_sum = src->mb_var_sum; + dst->mc_mb_var_sum = src->mc_mb_var_sum; + dst->b_frame_score = src->b_frame_score; + dst->needs_realloc = src->needs_realloc; + dst->reference = src->reference; + dst->shared = src->shared; + + return 0; +fail: + ff_mpeg_unref_picture(s, dst); + return ret; +} + +static int init_duplicate_context(MpegEncContext *s) +{ + int y_size = s->b8_stride * (2 * s->mb_height + 1); + int c_size = s->mb_stride * (s->mb_height + 1); + int yc_size = y_size + 2 * c_size; + int i; + + s->edge_emu_buffer = + s->me.scratchpad = + s->me.temp = + s->rd_scratchpad = + s->b_scratchpad = + s->obmc_scratchpad = NULL; + + if (s->encoding) { + FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map, + ME_MAP_SIZE * sizeof(uint32_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map, + ME_MAP_SIZE * sizeof(uint32_t), fail) + if (s->avctx->noise_reduction) { + FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum, + 2 * 64 * sizeof(int), fail) + } + } + FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail) + s->block = s->blocks[0]; + + for (i = 0; i < 12; i++) { + s->pblocks[i] = &s->block[i]; + } + + if (s->out_format == FMT_H263) { + /* ac values */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base, + yc_size * sizeof(int16_t) * 16, fail); + s->ac_val[0] = s->ac_val_base + s->b8_stride + 1; + s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1; + s->ac_val[2] = s->ac_val[1] + c_size; + } + + return 0; +fail: + return -1; // free() through ff_MPV_common_end() +} + +static void free_duplicate_context(MpegEncContext *s) +{ + if (s == NULL) + return; + + av_freep(&s->edge_emu_buffer); + av_freep(&s->me.scratchpad); + s->me.temp = + s->rd_scratchpad = + s->b_scratchpad = + s->obmc_scratchpad = NULL; + + av_freep(&s->dct_error_sum); + av_freep(&s->me.map); + av_freep(&s->me.score_map); + av_freep(&s->blocks); + av_freep(&s->ac_val_base); + s->block = NULL; +} + +static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src) +{ +#define COPY(a) bak->a = src->a + COPY(edge_emu_buffer); + COPY(me.scratchpad); + COPY(me.temp); + COPY(rd_scratchpad); + COPY(b_scratchpad); + COPY(obmc_scratchpad); + COPY(me.map); + COPY(me.score_map); + COPY(blocks); + COPY(block); + COPY(start_mb_y); + COPY(end_mb_y); + COPY(me.map_generation); + COPY(pb); + COPY(dct_error_sum); + COPY(dct_count[0]); + COPY(dct_count[1]); + COPY(ac_val_base); + COPY(ac_val[0]); + COPY(ac_val[1]); + COPY(ac_val[2]); +#undef COPY +} + +int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src) +{ + MpegEncContext bak; + int i, ret; + // FIXME copy only needed parts + // START_TIMER + backup_duplicate_context(&bak, dst); + memcpy(dst, src, sizeof(MpegEncContext)); + backup_duplicate_context(dst, &bak); + for (i = 0; i < 12; i++) { + dst->pblocks[i] = &dst->block[i]; + } + if (!dst->edge_emu_buffer && + (ret = ff_mpv_frame_size_alloc(dst, dst->linesize)) < 0) { + av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context " + "scratch buffers.\n"); + return ret; + } + // STOP_TIMER("update_duplicate_context") + // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads + return 0; +} + +int ff_mpeg_update_thread_context(AVCodecContext *dst, + const AVCodecContext *src) +{ + int i, ret; + MpegEncContext *s = dst->priv_data, *s1 = src->priv_data; + + if (dst == src) + return 0; + + av_assert0(s != s1); + + // FIXME can parameters change on I-frames? + // in that case dst may need a reinit + if (!s->context_initialized) { + memcpy(s, s1, sizeof(MpegEncContext)); + + s->avctx = dst; + s->bitstream_buffer = NULL; + s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0; + + if (s1->context_initialized){ +// s->picture_range_start += MAX_PICTURE_COUNT; +// s->picture_range_end += MAX_PICTURE_COUNT; + if((ret = ff_MPV_common_init(s)) < 0){ + memset(s, 0, sizeof(MpegEncContext)); + s->avctx = dst; + return ret; + } + } + } + + if (s->height != s1->height || s->width != s1->width || s->context_reinit) { + s->context_reinit = 0; + s->height = s1->height; + s->width = s1->width; + if ((ret = ff_MPV_common_frame_size_change(s)) < 0) + return ret; + } + + s->avctx->coded_height = s1->avctx->coded_height; + s->avctx->coded_width = s1->avctx->coded_width; + s->avctx->width = s1->avctx->width; + s->avctx->height = s1->avctx->height; + + s->coded_picture_number = s1->coded_picture_number; + s->picture_number = s1->picture_number; + s->input_picture_number = s1->input_picture_number; + + av_assert0(!s->picture || s->picture != s1->picture); + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + ff_mpeg_unref_picture(s, &s->picture[i]); + if (s1->picture[i].f.data[0] && + (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0) + return ret; + s->picture[i].period_since_free ++; + } + +#define UPDATE_PICTURE(pic)\ +do {\ + ff_mpeg_unref_picture(s, &s->pic);\ + if (s1->pic.f.data[0])\ + ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\ + else\ + ret = update_picture_tables(&s->pic, &s1->pic);\ + if (ret < 0)\ + return ret;\ +} while (0) + + UPDATE_PICTURE(current_picture); + UPDATE_PICTURE(last_picture); + UPDATE_PICTURE(next_picture); + + s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1); + s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1); + s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1); + + // Error/bug resilience + s->next_p_frame_damaged = s1->next_p_frame_damaged; + s->workaround_bugs = s1->workaround_bugs; + s->padding_bug_score = s1->padding_bug_score; + + // MPEG4 timing info + memcpy(&s->time_increment_bits, &s1->time_increment_bits, + (char *) &s1->shape - (char *) &s1->time_increment_bits); + + // B-frame info + s->max_b_frames = s1->max_b_frames; + s->low_delay = s1->low_delay; + s->droppable = s1->droppable; + + // DivX handling (doesn't work) + s->divx_packed = s1->divx_packed; + + if (s1->bitstream_buffer) { + if (s1->bitstream_buffer_size + + FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) + av_fast_malloc(&s->bitstream_buffer, + &s->allocated_bitstream_buffer_size, + s1->allocated_bitstream_buffer_size); + s->bitstream_buffer_size = s1->bitstream_buffer_size; + memcpy(s->bitstream_buffer, s1->bitstream_buffer, + s1->bitstream_buffer_size); + memset(s->bitstream_buffer + s->bitstream_buffer_size, 0, + FF_INPUT_BUFFER_PADDING_SIZE); + } + + // linesize dependend scratch buffer allocation + if (!s->edge_emu_buffer) + if (s1->linesize) { + if (ff_mpv_frame_size_alloc(s, s1->linesize) < 0) { + av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context " + "scratch buffers.\n"); + return AVERROR(ENOMEM); + } + } else { + av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not " + "be allocated due to unknown size.\n"); + } + + // MPEG2/interlacing info + memcpy(&s->progressive_sequence, &s1->progressive_sequence, + (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence); + + if (!s1->first_field) { + s->last_pict_type = s1->pict_type; + if (s1->current_picture_ptr) + s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality; + + if (s1->pict_type != AV_PICTURE_TYPE_B) { + s->last_non_b_pict_type = s1->pict_type; + } + } + + return 0; +} + +/** + * Set the given MpegEncContext to common defaults + * (same for encoding and decoding). + * The changed fields will not depend upon the + * prior state of the MpegEncContext. + */ +void ff_MPV_common_defaults(MpegEncContext *s) +{ + s->y_dc_scale_table = + s->c_dc_scale_table = ff_mpeg1_dc_scale_table; + s->chroma_qscale_table = ff_default_chroma_qscale_table; + s->progressive_frame = 1; + s->progressive_sequence = 1; + s->picture_structure = PICT_FRAME; + + s->coded_picture_number = 0; + s->picture_number = 0; + s->input_picture_number = 0; + + s->picture_in_gop_number = 0; + + s->f_code = 1; + s->b_code = 1; + + s->slice_context_count = 1; +} + +/** + * Set the given MpegEncContext to defaults for decoding. + * the changed fields will not depend upon + * the prior state of the MpegEncContext. + */ +void ff_MPV_decode_defaults(MpegEncContext *s) +{ + ff_MPV_common_defaults(s); +} + +static int init_er(MpegEncContext *s) +{ + ERContext *er = &s->er; + int mb_array_size = s->mb_height * s->mb_stride; + int i; + + er->avctx = s->avctx; + er->dsp = &s->dsp; + + er->mb_index2xy = s->mb_index2xy; + er->mb_num = s->mb_num; + er->mb_width = s->mb_width; + er->mb_height = s->mb_height; + er->mb_stride = s->mb_stride; + er->b8_stride = s->b8_stride; + + er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride); + er->error_status_table = av_mallocz(mb_array_size); + if (!er->er_temp_buffer || !er->error_status_table) + goto fail; + + er->mbskip_table = s->mbskip_table; + er->mbintra_table = s->mbintra_table; + + for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++) + er->dc_val[i] = s->dc_val[i]; + + er->decode_mb = mpeg_er_decode_mb; + er->opaque = s; + + return 0; +fail: + av_freep(&er->er_temp_buffer); + av_freep(&er->error_status_table); + return AVERROR(ENOMEM); +} + +/** + * Initialize and allocates MpegEncContext fields dependent on the resolution. + */ +static int init_context_frame(MpegEncContext *s) +{ + int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y; + + s->mb_width = (s->width + 15) / 16; + s->mb_stride = s->mb_width + 1; + s->b8_stride = s->mb_width * 2 + 1; + s->b4_stride = s->mb_width * 4 + 1; + mb_array_size = s->mb_height * s->mb_stride; + mv_table_size = (s->mb_height + 2) * s->mb_stride + 1; + + /* set default edge pos, will be overriden + * in decode_header if needed */ + s->h_edge_pos = s->mb_width * 16; + s->v_edge_pos = s->mb_height * 16; + + s->mb_num = s->mb_width * s->mb_height; + + s->block_wrap[0] = + s->block_wrap[1] = + s->block_wrap[2] = + s->block_wrap[3] = s->b8_stride; + s->block_wrap[4] = + s->block_wrap[5] = s->mb_stride; + + y_size = s->b8_stride * (2 * s->mb_height + 1); + c_size = s->mb_stride * (s->mb_height + 1); + yc_size = y_size + 2 * c_size; + + FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this + for (y = 0; y < s->mb_height; y++) + for (x = 0; x < s->mb_width; x++) + s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride; + + s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed? + + if (s->encoding) { + /* Allocate MV tables */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail) + s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1; + s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1; + s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1; + s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1; + s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1; + s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1; + + /* Allocate MB type table */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding + + FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail) + + FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab, + mb_array_size * sizeof(float), fail); + FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab, + mb_array_size * sizeof(float), fail); + + } + + if (s->codec_id == AV_CODEC_ID_MPEG4 || + (s->flags & CODEC_FLAG_INTERLACED_ME)) { + /* interlaced direct mode decoding tables */ + for (i = 0; i < 2; i++) { + int j, k; + for (j = 0; j < 2; j++) { + for (k = 0; k < 2; k++) { + FF_ALLOCZ_OR_GOTO(s->avctx, + s->b_field_mv_table_base[i][j][k], + mv_table_size * 2 * sizeof(int16_t), + fail); + s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] + + s->mb_stride + 1; + } + FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail) + s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1; + } + FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail) + } + } + if (s->out_format == FMT_H263) { + /* cbp values */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail); + s->coded_block = s->coded_block_base + s->b8_stride + 1; + + /* cbp, ac_pred, pred_dir */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail); + FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail); + } + + if (s->h263_pred || s->h263_plus || !s->encoding) { + /* dc values */ + // MN: we need these for error resilience of intra-frames + FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail); + s->dc_val[0] = s->dc_val_base + s->b8_stride + 1; + s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1; + s->dc_val[2] = s->dc_val[1] + c_size; + for (i = 0; i < yc_size; i++) + s->dc_val_base[i] = 1024; + } + + /* which mb is a intra block */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail); + memset(s->mbintra_table, 1, mb_array_size); + + /* init macroblock skip table */ + FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail); + // Note the + 1 is for a quicker mpeg4 slice_end detection + + return init_er(s); +fail: + return AVERROR(ENOMEM); +} + +/** + * init common structure for both encoder and decoder. + * this assumes that some variables like width/height are already set + */ +av_cold int ff_MPV_common_init(MpegEncContext *s) +{ + int i; + int nb_slices = (HAVE_THREADS && + s->avctx->active_thread_type & FF_THREAD_SLICE) ? + s->avctx->thread_count : 1; + + if (s->encoding && s->avctx->slices) + nb_slices = s->avctx->slices; + + if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence) + s->mb_height = (s->height + 31) / 32 * 2; + else + s->mb_height = (s->height + 15) / 16; + + if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) { + av_log(s->avctx, AV_LOG_ERROR, + "decoding to AV_PIX_FMT_NONE is not supported.\n"); + return -1; + } + + if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) { + int max_slices; + if (s->mb_height) + max_slices = FFMIN(MAX_THREADS, s->mb_height); + else + max_slices = MAX_THREADS; + av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d)," + " reducing to %d\n", nb_slices, max_slices); + nb_slices = max_slices; + } + + if ((s->width || s->height) && + av_image_check_size(s->width, s->height, 0, s->avctx)) + return -1; + + ff_dct_common_init(s); + + s->flags = s->avctx->flags; + s->flags2 = s->avctx->flags2; + + /* set chroma shifts */ + avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift); + + /* convert fourcc to upper case */ + s->codec_tag = avpriv_toupper4(s->avctx->codec_tag); + s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag); + + s->avctx->coded_frame = &s->current_picture.f; + + if (s->encoding) { + if (s->msmpeg4_version) { + FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats, + 2 * 2 * (MAX_LEVEL + 1) * + (MAX_RUN + 1) * 2 * sizeof(int), fail); + } + FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail); + + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix, 64 * 32 * sizeof(int), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix, 64 * 32 * sizeof(int), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix, 64 * 32 * sizeof(int), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail) + FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail) + + if (s->avctx->noise_reduction) { + FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail); + } + } + + FF_ALLOCZ_OR_GOTO(s->avctx, s->picture, + MAX_PICTURE_COUNT * sizeof(Picture), fail); + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + avcodec_get_frame_defaults(&s->picture[i].f); + } + memset(&s->next_picture, 0, sizeof(s->next_picture)); + memset(&s->last_picture, 0, sizeof(s->last_picture)); + memset(&s->current_picture, 0, sizeof(s->current_picture)); + avcodec_get_frame_defaults(&s->next_picture.f); + avcodec_get_frame_defaults(&s->last_picture.f); + avcodec_get_frame_defaults(&s->current_picture.f); + + if (init_context_frame(s)) + goto fail; + + s->parse_context.state = -1; + + s->context_initialized = 1; + s->thread_context[0] = s; + +// if (s->width && s->height) { + if (nb_slices > 1) { + for (i = 1; i < nb_slices; i++) { + s->thread_context[i] = av_malloc(sizeof(MpegEncContext)); + memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); + } + + for (i = 0; i < nb_slices; i++) { + if (init_duplicate_context(s->thread_context[i]) < 0) + goto fail; + s->thread_context[i]->start_mb_y = + (s->mb_height * (i) + nb_slices / 2) / nb_slices; + s->thread_context[i]->end_mb_y = + (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices; + } + } else { + if (init_duplicate_context(s) < 0) + goto fail; + s->start_mb_y = 0; + s->end_mb_y = s->mb_height; + } + s->slice_context_count = nb_slices; +// } + + return 0; + fail: + ff_MPV_common_end(s); + return -1; +} + +/** + * Frees and resets MpegEncContext fields depending on the resolution. + * Is used during resolution changes to avoid a full reinitialization of the + * codec. + */ +static int free_context_frame(MpegEncContext *s) +{ + int i, j, k; + + av_freep(&s->mb_type); + av_freep(&s->p_mv_table_base); + av_freep(&s->b_forw_mv_table_base); + av_freep(&s->b_back_mv_table_base); + av_freep(&s->b_bidir_forw_mv_table_base); + av_freep(&s->b_bidir_back_mv_table_base); + av_freep(&s->b_direct_mv_table_base); + s->p_mv_table = NULL; + s->b_forw_mv_table = NULL; + s->b_back_mv_table = NULL; + s->b_bidir_forw_mv_table = NULL; + s->b_bidir_back_mv_table = NULL; + s->b_direct_mv_table = NULL; + for (i = 0; i < 2; i++) { + for (j = 0; j < 2; j++) { + for (k = 0; k < 2; k++) { + av_freep(&s->b_field_mv_table_base[i][j][k]); + s->b_field_mv_table[i][j][k] = NULL; + } + av_freep(&s->b_field_select_table[i][j]); + av_freep(&s->p_field_mv_table_base[i][j]); + s->p_field_mv_table[i][j] = NULL; + } + av_freep(&s->p_field_select_table[i]); + } + + av_freep(&s->dc_val_base); + av_freep(&s->coded_block_base); + av_freep(&s->mbintra_table); + av_freep(&s->cbp_table); + av_freep(&s->pred_dir_table); + + av_freep(&s->mbskip_table); + + av_freep(&s->er.error_status_table); + av_freep(&s->er.er_temp_buffer); + av_freep(&s->mb_index2xy); + av_freep(&s->lambda_table); + + av_freep(&s->cplx_tab); + av_freep(&s->bits_tab); + + s->linesize = s->uvlinesize = 0; + + return 0; +} + +int ff_MPV_common_frame_size_change(MpegEncContext *s) +{ + int i, err = 0; + + if (s->slice_context_count > 1) { + for (i = 0; i < s->slice_context_count; i++) { + free_duplicate_context(s->thread_context[i]); + } + for (i = 1; i < s->slice_context_count; i++) { + av_freep(&s->thread_context[i]); + } + } else + free_duplicate_context(s); + + if ((err = free_context_frame(s)) < 0) + return err; + + if (s->picture) + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + s->picture[i].needs_realloc = 1; + } + + s->last_picture_ptr = + s->next_picture_ptr = + s->current_picture_ptr = NULL; + + // init + if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence) + s->mb_height = (s->height + 31) / 32 * 2; + else + s->mb_height = (s->height + 15) / 16; + + if ((s->width || s->height) && + av_image_check_size(s->width, s->height, 0, s->avctx)) + return AVERROR_INVALIDDATA; + + if ((err = init_context_frame(s))) + goto fail; + + s->thread_context[0] = s; + + if (s->width && s->height) { + int nb_slices = s->slice_context_count; + if (nb_slices > 1) { + for (i = 1; i < nb_slices; i++) { + s->thread_context[i] = av_malloc(sizeof(MpegEncContext)); + memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); + } + + for (i = 0; i < nb_slices; i++) { + if (init_duplicate_context(s->thread_context[i]) < 0) + goto fail; + s->thread_context[i]->start_mb_y = + (s->mb_height * (i) + nb_slices / 2) / nb_slices; + s->thread_context[i]->end_mb_y = + (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices; + } + } else { + if (init_duplicate_context(s) < 0) + goto fail; + s->start_mb_y = 0; + s->end_mb_y = s->mb_height; + } + s->slice_context_count = nb_slices; + } + + return 0; + fail: + ff_MPV_common_end(s); + return err; +} + +/* init common structure for both encoder and decoder */ +void ff_MPV_common_end(MpegEncContext *s) +{ + int i; + + if (s->slice_context_count > 1) { + for (i = 0; i < s->slice_context_count; i++) { + free_duplicate_context(s->thread_context[i]); + } + for (i = 1; i < s->slice_context_count; i++) { + av_freep(&s->thread_context[i]); + } + s->slice_context_count = 1; + } else free_duplicate_context(s); + + av_freep(&s->parse_context.buffer); + s->parse_context.buffer_size = 0; + + av_freep(&s->bitstream_buffer); + s->allocated_bitstream_buffer_size = 0; + + av_freep(&s->avctx->stats_out); + av_freep(&s->ac_stats); + + if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix); + if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16); + s->q_chroma_intra_matrix= NULL; + s->q_chroma_intra_matrix16= NULL; + av_freep(&s->q_intra_matrix); + av_freep(&s->q_inter_matrix); + av_freep(&s->q_intra_matrix16); + av_freep(&s->q_inter_matrix16); + av_freep(&s->input_picture); + av_freep(&s->reordered_input_picture); + av_freep(&s->dct_offset); + + if (s->picture) { + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + free_picture_tables(&s->picture[i]); + ff_mpeg_unref_picture(s, &s->picture[i]); + } + } + av_freep(&s->picture); + free_picture_tables(&s->last_picture); + ff_mpeg_unref_picture(s, &s->last_picture); + free_picture_tables(&s->current_picture); + ff_mpeg_unref_picture(s, &s->current_picture); + free_picture_tables(&s->next_picture); + ff_mpeg_unref_picture(s, &s->next_picture); + free_picture_tables(&s->new_picture); + ff_mpeg_unref_picture(s, &s->new_picture); + + free_context_frame(s); + + s->context_initialized = 0; + s->last_picture_ptr = + s->next_picture_ptr = + s->current_picture_ptr = NULL; + s->linesize = s->uvlinesize = 0; +} + +void ff_init_rl(RLTable *rl, + uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3]) +{ + int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1]; + uint8_t index_run[MAX_RUN + 1]; + int last, run, level, start, end, i; + + /* If table is static, we can quit if rl->max_level[0] is not NULL */ + if (static_store && rl->max_level[0]) + return; + + /* compute max_level[], max_run[] and index_run[] */ + for (last = 0; last < 2; last++) { + if (last == 0) { + start = 0; + end = rl->last; + } else { + start = rl->last; + end = rl->n; + } + + memset(max_level, 0, MAX_RUN + 1); + memset(max_run, 0, MAX_LEVEL + 1); + memset(index_run, rl->n, MAX_RUN + 1); + for (i = start; i < end; i++) { + run = rl->table_run[i]; + level = rl->table_level[i]; + if (index_run[run] == rl->n) + index_run[run] = i; + if (level > max_level[run]) + max_level[run] = level; + if (run > max_run[level]) + max_run[level] = run; + } + if (static_store) + rl->max_level[last] = static_store[last]; + else + rl->max_level[last] = av_malloc(MAX_RUN + 1); + memcpy(rl->max_level[last], max_level, MAX_RUN + 1); + if (static_store) + rl->max_run[last] = static_store[last] + MAX_RUN + 1; + else + rl->max_run[last] = av_malloc(MAX_LEVEL + 1); + memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1); + if (static_store) + rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2; + else + rl->index_run[last] = av_malloc(MAX_RUN + 1); + memcpy(rl->index_run[last], index_run, MAX_RUN + 1); + } +} + +void ff_init_vlc_rl(RLTable *rl) +{ + int i, q; + + for (q = 0; q < 32; q++) { + int qmul = q * 2; + int qadd = (q - 1) | 1; + + if (q == 0) { + qmul = 1; + qadd = 0; + } + for (i = 0; i < rl->vlc.table_size; i++) { + int code = rl->vlc.table[i][0]; + int len = rl->vlc.table[i][1]; + int level, run; + + if (len == 0) { // illegal code + run = 66; + level = MAX_LEVEL; + } else if (len < 0) { // more bits needed + run = 0; + level = code; + } else { + if (code == rl->n) { // esc + run = 66; + level = 0; + } else { + run = rl->table_run[code] + 1; + level = rl->table_level[code] * qmul + qadd; + if (code >= rl->last) run += 192; + } + } + rl->rl_vlc[q][i].len = len; + rl->rl_vlc[q][i].level = level; + rl->rl_vlc[q][i].run = run; + } + } +} + +void ff_release_unused_pictures(MpegEncContext*s, int remove_current) +{ + int i; + + /* release non reference frames */ + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (!s->picture[i].reference && + (remove_current || &s->picture[i] != s->current_picture_ptr)) { + ff_mpeg_unref_picture(s, &s->picture[i]); + } + } +} + +static inline int pic_is_unused(MpegEncContext *s, Picture *pic) +{ + if ( (s->avctx->active_thread_type & FF_THREAD_FRAME) + && pic->f.qscale_table //check if the frame has anything allocated + && pic->period_since_free < s->avctx->thread_count) + return 0; + if (pic == s->last_picture_ptr) + return 0; + if (pic->f.data[0] == NULL) + return 1; + if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF)) + return 1; + return 0; +} + +static int find_unused_picture(MpegEncContext *s, int shared) +{ + int i; + + if (shared) { + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (s->picture[i].f.data[0] == NULL && &s->picture[i] != s->last_picture_ptr) + return i; + } + } else { + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (pic_is_unused(s, &s->picture[i])) + return i; + } + } + + av_log(s->avctx, AV_LOG_FATAL, + "Internal error, picture buffer overflow\n"); + /* We could return -1, but the codec would crash trying to draw into a + * non-existing frame anyway. This is safer than waiting for a random crash. + * Also the return of this is never useful, an encoder must only allocate + * as much as allowed in the specification. This has no relationship to how + * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large + * enough for such valid streams). + * Plus, a decoder has to check stream validity and remove frames if too + * many reference frames are around. Waiting for "OOM" is not correct at + * all. Similarly, missing reference frames have to be replaced by + * interpolated/MC frames, anything else is a bug in the codec ... + */ + abort(); + return -1; +} + +int ff_find_unused_picture(MpegEncContext *s, int shared) +{ + int ret = find_unused_picture(s, shared); + + if (ret >= 0 && ret < MAX_PICTURE_COUNT) { + if (s->picture[ret].needs_realloc) { + s->picture[ret].needs_realloc = 0; + free_picture_tables(&s->picture[ret]); + ff_mpeg_unref_picture(s, &s->picture[ret]); + avcodec_get_frame_defaults(&s->picture[ret].f); + } + } + return ret; +} + +static void update_noise_reduction(MpegEncContext *s) +{ + int intra, i; + + for (intra = 0; intra < 2; intra++) { + if (s->dct_count[intra] > (1 << 16)) { + for (i = 0; i < 64; i++) { + s->dct_error_sum[intra][i] >>= 1; + } + s->dct_count[intra] >>= 1; + } + + for (i = 0; i < 64; i++) { + s->dct_offset[intra][i] = (s->avctx->noise_reduction * + s->dct_count[intra] + + s->dct_error_sum[intra][i] / 2) / + (s->dct_error_sum[intra][i] + 1); + } + } +} + +/** + * generic function for encode/decode called after coding/decoding + * the header and before a frame is coded/decoded. + */ +int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) +{ + int i, ret; + Picture *pic; + s->mb_skipped = 0; + + if (!ff_thread_can_start_frame(avctx)) { + av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n"); + return -1; + } + + /* mark & release old frames */ + if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr && + s->last_picture_ptr != s->next_picture_ptr && + s->last_picture_ptr->f.data[0]) { + ff_mpeg_unref_picture(s, s->last_picture_ptr); + } + + /* release forgotten pictures */ + /* if (mpeg124/h263) */ + if (!s->encoding) { + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (&s->picture[i] != s->last_picture_ptr && + &s->picture[i] != s->next_picture_ptr && + s->picture[i].reference && !s->picture[i].needs_realloc) { + if (!(avctx->active_thread_type & FF_THREAD_FRAME)) + av_log(avctx, AV_LOG_ERROR, + "releasing zombie picture\n"); + ff_mpeg_unref_picture(s, &s->picture[i]); + } + } + } + + if (!s->encoding) { + ff_release_unused_pictures(s, 1); + + if (s->current_picture_ptr && + s->current_picture_ptr->f.data[0] == NULL) { + // we already have a unused image + // (maybe it was set before reading the header) + pic = s->current_picture_ptr; + } else { + i = ff_find_unused_picture(s, 0); + if (i < 0) { + av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); + return i; + } + pic = &s->picture[i]; + } + + pic->reference = 0; + if (!s->droppable) { + if (s->pict_type != AV_PICTURE_TYPE_B) + pic->reference = 3; + } + + pic->f.coded_picture_number = s->coded_picture_number++; + + if (ff_alloc_picture(s, pic, 0) < 0) + return -1; + + s->current_picture_ptr = pic; + // FIXME use only the vars from current_pic + s->current_picture_ptr->f.top_field_first = s->top_field_first; + if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO || + s->codec_id == AV_CODEC_ID_MPEG2VIDEO) { + if (s->picture_structure != PICT_FRAME) + s->current_picture_ptr->f.top_field_first = + (s->picture_structure == PICT_TOP_FIELD) == s->first_field; + } + s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame && + !s->progressive_sequence; + s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME; + } + + s->current_picture_ptr->f.pict_type = s->pict_type; + // if (s->flags && CODEC_FLAG_QSCALE) + // s->current_picture_ptr->quality = s->new_picture_ptr->quality; + s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I; + + ff_mpeg_unref_picture(s, &s->current_picture); + if ((ret = ff_mpeg_ref_picture(s, &s->current_picture, + s->current_picture_ptr)) < 0) + return ret; + + if (s->pict_type != AV_PICTURE_TYPE_B) { + s->last_picture_ptr = s->next_picture_ptr; + if (!s->droppable) + s->next_picture_ptr = s->current_picture_ptr; + } + av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n", + s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr, + s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL, + s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL, + s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL, + s->pict_type, s->droppable); + + if ((s->last_picture_ptr == NULL || + s->last_picture_ptr->f.data[0] == NULL) && + (s->pict_type != AV_PICTURE_TYPE_I || + s->picture_structure != PICT_FRAME)) { + int h_chroma_shift, v_chroma_shift; + av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, + &h_chroma_shift, &v_chroma_shift); + if (s->pict_type != AV_PICTURE_TYPE_I) + av_log(avctx, AV_LOG_ERROR, + "warning: first frame is no keyframe\n"); + else if (s->picture_structure != PICT_FRAME) + av_log(avctx, AV_LOG_INFO, + "allocate dummy last picture for field based first keyframe\n"); + + /* Allocate a dummy frame */ + i = ff_find_unused_picture(s, 0); + if (i < 0) { + av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); + return i; + } + s->last_picture_ptr = &s->picture[i]; + s->last_picture_ptr->f.key_frame = 0; + if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) { + s->last_picture_ptr = NULL; + return -1; + } + + memset(s->last_picture_ptr->f.data[0], 0x80, + avctx->height * s->last_picture_ptr->f.linesize[0]); + memset(s->last_picture_ptr->f.data[1], 0x80, + (avctx->height >> v_chroma_shift) * + s->last_picture_ptr->f.linesize[1]); + memset(s->last_picture_ptr->f.data[2], 0x80, + (avctx->height >> v_chroma_shift) * + s->last_picture_ptr->f.linesize[2]); + + if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){ + for(i=0; i<avctx->height; i++) + memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i, 16, avctx->width); + } + + ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0); + ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1); + } + if ((s->next_picture_ptr == NULL || + s->next_picture_ptr->f.data[0] == NULL) && + s->pict_type == AV_PICTURE_TYPE_B) { + /* Allocate a dummy frame */ + i = ff_find_unused_picture(s, 0); + if (i < 0) { + av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); + return i; + } + s->next_picture_ptr = &s->picture[i]; + s->next_picture_ptr->f.key_frame = 0; + if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) { + s->next_picture_ptr = NULL; + return -1; + } + ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0); + ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1); + } + +#if 0 // BUFREF-FIXME + memset(s->last_picture.f.data, 0, sizeof(s->last_picture.f.data)); + memset(s->next_picture.f.data, 0, sizeof(s->next_picture.f.data)); +#endif + if (s->last_picture_ptr) { + ff_mpeg_unref_picture(s, &s->last_picture); + if (s->last_picture_ptr->f.data[0] && + (ret = ff_mpeg_ref_picture(s, &s->last_picture, + s->last_picture_ptr)) < 0) + return ret; + } + if (s->next_picture_ptr) { + ff_mpeg_unref_picture(s, &s->next_picture); + if (s->next_picture_ptr->f.data[0] && + (ret = ff_mpeg_ref_picture(s, &s->next_picture, + s->next_picture_ptr)) < 0) + return ret; + } + + assert(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr && + s->last_picture_ptr->f.data[0])); + + if (s->picture_structure!= PICT_FRAME) { + int i; + for (i = 0; i < 4; i++) { + if (s->picture_structure == PICT_BOTTOM_FIELD) { + s->current_picture.f.data[i] += + s->current_picture.f.linesize[i]; + } + s->current_picture.f.linesize[i] *= 2; + s->last_picture.f.linesize[i] *= 2; + s->next_picture.f.linesize[i] *= 2; + } + } + + s->err_recognition = avctx->err_recognition; + + /* set dequantizer, we can't do it during init as + * it might change for mpeg4 and we can't do it in the header + * decode as init is not called for mpeg4 there yet */ + if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) { + s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra; + s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter; + } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) { + s->dct_unquantize_intra = s->dct_unquantize_h263_intra; + s->dct_unquantize_inter = s->dct_unquantize_h263_inter; + } else { + s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra; + s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter; + } + + if (s->dct_error_sum) { + assert(s->avctx->noise_reduction && s->encoding); + update_noise_reduction(s); + } + + if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) + return ff_xvmc_field_start(s, avctx); + + return 0; +} + +/* generic function for encode/decode called after a + * frame has been coded/decoded. */ +void ff_MPV_frame_end(MpegEncContext *s) +{ + int i; + /* redraw edges for the frame if decoding didn't complete */ + // just to make sure that all data is rendered. + if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) { + ff_xvmc_field_end(s); + } else if ((s->er.error_count || s->encoding || !(s->avctx->codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND)) && + !s->avctx->hwaccel && + !(s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) && + s->unrestricted_mv && + s->current_picture.reference && + !s->intra_only && + !(s->flags & CODEC_FLAG_EMU_EDGE) && + !s->avctx->lowres + ) { + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt); + int hshift = desc->log2_chroma_w; + int vshift = desc->log2_chroma_h; + s->dsp.draw_edges(s->current_picture.f.data[0], s->current_picture.f.linesize[0], + s->h_edge_pos, s->v_edge_pos, + EDGE_WIDTH, EDGE_WIDTH, + EDGE_TOP | EDGE_BOTTOM); + s->dsp.draw_edges(s->current_picture.f.data[1], s->current_picture.f.linesize[1], + s->h_edge_pos >> hshift, s->v_edge_pos >> vshift, + EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, + EDGE_TOP | EDGE_BOTTOM); + s->dsp.draw_edges(s->current_picture.f.data[2], s->current_picture.f.linesize[2], + s->h_edge_pos >> hshift, s->v_edge_pos >> vshift, + EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, + EDGE_TOP | EDGE_BOTTOM); + } + + emms_c(); + + s->last_pict_type = s->pict_type; + s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f.quality; + if (s->pict_type!= AV_PICTURE_TYPE_B) { + s->last_non_b_pict_type = s->pict_type; + } +#if 0 + /* copy back current_picture variables */ + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (s->picture[i].f.data[0] == s->current_picture.f.data[0]) { + s->picture[i] = s->current_picture; + break; + } + } + assert(i < MAX_PICTURE_COUNT); +#endif + + if (s->encoding) { + /* release non-reference frames */ + for (i = 0; i < MAX_PICTURE_COUNT; i++) { + if (!s->picture[i].reference) + ff_mpeg_unref_picture(s, &s->picture[i]); + } + } + // clear copies, to avoid confusion +#if 0 + memset(&s->last_picture, 0, sizeof(Picture)); + memset(&s->next_picture, 0, sizeof(Picture)); + memset(&s->current_picture, 0, sizeof(Picture)); +#endif + s->avctx->coded_frame = &s->current_picture_ptr->f; + + if (s->current_picture.reference) + ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); +} + +/** + * Draw a line from (ex, ey) -> (sx, sy). + * @param w width of the image + * @param h height of the image + * @param stride stride/linesize of the image + * @param color color of the arrow + */ +static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, + int w, int h, int stride, int color) +{ + int x, y, fr, f; + + sx = av_clip(sx, 0, w - 1); + sy = av_clip(sy, 0, h - 1); + ex = av_clip(ex, 0, w - 1); + ey = av_clip(ey, 0, h - 1); + + buf[sy * stride + sx] += color; + + if (FFABS(ex - sx) > FFABS(ey - sy)) { + if (sx > ex) { + FFSWAP(int, sx, ex); + FFSWAP(int, sy, ey); + } + buf += sx + sy * stride; + ex -= sx; + f = ((ey - sy) << 16) / ex; + for (x = 0; x <= ex; x++) { + y = (x * f) >> 16; + fr = (x * f) & 0xFFFF; + buf[y * stride + x] += (color * (0x10000 - fr)) >> 16; + if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16; + } + } else { + if (sy > ey) { + FFSWAP(int, sx, ex); + FFSWAP(int, sy, ey); + } + buf += sx + sy * stride; + ey -= sy; + if (ey) + f = ((ex - sx) << 16) / ey; + else + f = 0; + for(y= 0; y <= ey; y++){ + x = (y*f) >> 16; + fr = (y*f) & 0xFFFF; + buf[y * stride + x] += (color * (0x10000 - fr)) >> 16; + if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16; + } + } +} + +/** + * Draw an arrow from (ex, ey) -> (sx, sy). + * @param w width of the image + * @param h height of the image + * @param stride stride/linesize of the image + * @param color color of the arrow + */ +static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, + int ey, int w, int h, int stride, int color) +{ + int dx,dy; + + sx = av_clip(sx, -100, w + 100); + sy = av_clip(sy, -100, h + 100); + ex = av_clip(ex, -100, w + 100); + ey = av_clip(ey, -100, h + 100); + + dx = ex - sx; + dy = ey - sy; + + if (dx * dx + dy * dy > 3 * 3) { + int rx = dx + dy; + int ry = -dx + dy; + int length = ff_sqrt((rx * rx + ry * ry) << 8); + + // FIXME subpixel accuracy + rx = ROUNDED_DIV(rx * 3 << 4, length); + ry = ROUNDED_DIV(ry * 3 << 4, length); + + draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color); + draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color); + } + draw_line(buf, sx, sy, ex, ey, w, h, stride, color); +} + +/** + * Print debugging info for the given picture. + */ +void ff_print_debug_info2(AVCodecContext *avctx, Picture *p, AVFrame *pict, uint8_t *mbskip_table, + int *low_delay, + int mb_width, int mb_height, int mb_stride, int quarter_sample) +{ + if (avctx->hwaccel || !p || !p->mb_type + || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) + return; + + + if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) { + int x,y; + + av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n", + av_get_picture_type_char(pict->pict_type)); + for (y = 0; y < mb_height; y++) { + for (x = 0; x < mb_width; x++) { + if (avctx->debug & FF_DEBUG_SKIP) { + int count = mbskip_table[x + y * mb_stride]; + if (count > 9) + count = 9; + av_log(avctx, AV_LOG_DEBUG, "%1d", count); + } + if (avctx->debug & FF_DEBUG_QP) { + av_log(avctx, AV_LOG_DEBUG, "%2d", + p->qscale_table[x + y * mb_stride]); + } + if (avctx->debug & FF_DEBUG_MB_TYPE) { + int mb_type = p->mb_type[x + y * mb_stride]; + // Type & MV direction + if (IS_PCM(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "P"); + else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "A"); + else if (IS_INTRA4x4(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "i"); + else if (IS_INTRA16x16(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "I"); + else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "d"); + else if (IS_DIRECT(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "D"); + else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "g"); + else if (IS_GMC(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "G"); + else if (IS_SKIP(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "S"); + else if (!USES_LIST(mb_type, 1)) + av_log(avctx, AV_LOG_DEBUG, ">"); + else if (!USES_LIST(mb_type, 0)) + av_log(avctx, AV_LOG_DEBUG, "<"); + else { + av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); + av_log(avctx, AV_LOG_DEBUG, "X"); + } + + // segmentation + if (IS_8X8(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "+"); + else if (IS_16X8(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "-"); + else if (IS_8X16(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "|"); + else if (IS_INTRA(mb_type) || IS_16X16(mb_type)) + av_log(avctx, AV_LOG_DEBUG, " "); + else + av_log(avctx, AV_LOG_DEBUG, "?"); + + + if (IS_INTERLACED(mb_type)) + av_log(avctx, AV_LOG_DEBUG, "="); + else + av_log(avctx, AV_LOG_DEBUG, " "); + } + } + av_log(avctx, AV_LOG_DEBUG, "\n"); + } + } + + if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || + (avctx->debug_mv)) { + const int shift = 1 + quarter_sample; + int mb_y; + uint8_t *ptr; + int i; + int h_chroma_shift, v_chroma_shift, block_height; + const int width = avctx->width; + const int height = avctx->height; + const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1; + const int mv_stride = (mb_width << mv_sample_log2) + + (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1); + + *low_delay = 0; // needed to see the vectors without trashing the buffers + + avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); + + av_frame_make_writable(pict); + + pict->opaque = NULL; + ptr = pict->data[0]; + block_height = 16 >> v_chroma_shift; + + for (mb_y = 0; mb_y < mb_height; mb_y++) { + int mb_x; + for (mb_x = 0; mb_x < mb_width; mb_x++) { + const int mb_index = mb_x + mb_y * mb_stride; + if ((avctx->debug_mv) && p->motion_val[0]) { + int type; + for (type = 0; type < 3; type++) { + int direction = 0; + switch (type) { + case 0: + if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) || + (pict->pict_type!= AV_PICTURE_TYPE_P)) + continue; + direction = 0; + break; + case 1: + if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) || + (pict->pict_type!= AV_PICTURE_TYPE_B)) + continue; + direction = 0; + break; + case 2: + if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) || + (pict->pict_type!= AV_PICTURE_TYPE_B)) + continue; + direction = 1; + break; + } + if (!USES_LIST(p->mb_type[mb_index], direction)) + continue; + + if (IS_8X8(p->mb_type[mb_index])) { + int i; + for (i = 0; i < 4; i++) { + int sx = mb_x * 16 + 4 + 8 * (i & 1); + int sy = mb_y * 16 + 4 + 8 * (i >> 1); + int xy = (mb_x * 2 + (i & 1) + + (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1); + int mx = (p->motion_val[direction][xy][0] >> shift) + sx; + int my = (p->motion_val[direction][xy][1] >> shift) + sy; + draw_arrow(ptr, sx, sy, mx, my, width, + height, pict->linesize[0], 100); + } + } else if (IS_16X8(p->mb_type[mb_index])) { + int i; + for (i = 0; i < 2; i++) { + int sx = mb_x * 16 + 8; + int sy = mb_y * 16 + 4 + 8 * i; + int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1); + int mx = (p->motion_val[direction][xy][0] >> shift); + int my = (p->motion_val[direction][xy][1] >> shift); + + if (IS_INTERLACED(p->mb_type[mb_index])) + my *= 2; + + draw_arrow(ptr, sx, sy, mx + sx, my + sy, width, + height, pict->linesize[0], 100); + } + } else if (IS_8X16(p->mb_type[mb_index])) { + int i; + for (i = 0; i < 2; i++) { + int sx = mb_x * 16 + 4 + 8 * i; + int sy = mb_y * 16 + 8; + int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1); + int mx = p->motion_val[direction][xy][0] >> shift; + int my = p->motion_val[direction][xy][1] >> shift; + + if (IS_INTERLACED(p->mb_type[mb_index])) + my *= 2; + + draw_arrow(ptr, sx, sy, mx + sx, my + sy, width, + height, pict->linesize[0], 100); + } + } else { + int sx= mb_x * 16 + 8; + int sy= mb_y * 16 + 8; + int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2; + int mx= (p->motion_val[direction][xy][0]>>shift) + sx; + int my= (p->motion_val[direction][xy][1]>>shift) + sy; + draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100); + } + } + } + if ((avctx->debug & FF_DEBUG_VIS_QP)) { + uint64_t c = (p->qscale_table[mb_index] * 128 / 31) * + 0x0101010101010101ULL; + int y; + for (y = 0; y < block_height; y++) { + *(uint64_t *)(pict->data[1] + 8 * mb_x + + (block_height * mb_y + y) * + pict->linesize[1]) = c; + *(uint64_t *)(pict->data[2] + 8 * mb_x + + (block_height * mb_y + y) * + pict->linesize[2]) = c; + } + } + if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) && + p->motion_val[0]) { + int mb_type = p->mb_type[mb_index]; + uint64_t u,v; + int y; +#define COLOR(theta, r) \ + u = (int)(128 + r * cos(theta * 3.141592 / 180)); \ + v = (int)(128 + r * sin(theta * 3.141592 / 180)); + + + u = v = 128; + if (IS_PCM(mb_type)) { + COLOR(120, 48) + } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) || + IS_INTRA16x16(mb_type)) { + COLOR(30, 48) + } else if (IS_INTRA4x4(mb_type)) { + COLOR(90, 48) + } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) { + // COLOR(120, 48) + } else if (IS_DIRECT(mb_type)) { + COLOR(150, 48) + } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) { + COLOR(170, 48) + } else if (IS_GMC(mb_type)) { + COLOR(190, 48) + } else if (IS_SKIP(mb_type)) { + // COLOR(180, 48) + } else if (!USES_LIST(mb_type, 1)) { + COLOR(240, 48) + } else if (!USES_LIST(mb_type, 0)) { + COLOR(0, 48) + } else { + av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); + COLOR(300,48) + } + + u *= 0x0101010101010101ULL; + v *= 0x0101010101010101ULL; + for (y = 0; y < block_height; y++) { + *(uint64_t *)(pict->data[1] + 8 * mb_x + + (block_height * mb_y + y) * pict->linesize[1]) = u; + *(uint64_t *)(pict->data[2] + 8 * mb_x + + (block_height * mb_y + y) * pict->linesize[2]) = v; + } + + // segmentation + if (IS_8X8(mb_type) || IS_16X8(mb_type)) { + *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 + + (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL; + *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 + + (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL; + } + if (IS_8X8(mb_type) || IS_8X16(mb_type)) { + for (y = 0; y < 16; y++) + pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) * + pict->linesize[0]] ^= 0x80; + } + if (IS_8X8(mb_type) && mv_sample_log2 >= 2) { + int dm = 1 << (mv_sample_log2 - 2); + for (i = 0; i < 4; i++) { + int sx = mb_x * 16 + 8 * (i & 1); + int sy = mb_y * 16 + 8 * (i >> 1); + int xy = (mb_x * 2 + (i & 1) + + (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1); + // FIXME bidir + int32_t *mv = (int32_t *) &p->motion_val[0][xy]; + if (mv[0] != mv[dm] || + mv[dm * mv_stride] != mv[dm * (mv_stride + 1)]) + for (y = 0; y < 8; y++) + pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80; + if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)]) + *(uint64_t *)(pict->data[0] + sx + (sy + 4) * + pict->linesize[0]) ^= 0x8080808080808080ULL; + } + } + + if (IS_INTERLACED(mb_type) && + avctx->codec->id == AV_CODEC_ID_H264) { + // hmm + } + } + mbskip_table[mb_index] = 0; + } + } + } +} + +void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict) +{ + ff_print_debug_info2(s->avctx, p, pict, s->mbskip_table, &s->low_delay, + s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample); +} + +int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type) +{ + AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf); + int offset = 2*s->mb_stride + 1; + if(!ref) + return AVERROR(ENOMEM); + av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16)); + ref->size -= offset; + ref->data += offset; + return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type); +} + +static inline int hpel_motion_lowres(MpegEncContext *s, + uint8_t *dest, uint8_t *src, + int field_based, int field_select, + int src_x, int src_y, + int width, int height, int stride, + int h_edge_pos, int v_edge_pos, + int w, int h, h264_chroma_mc_func *pix_op, + int motion_x, int motion_y) +{ + const int lowres = s->avctx->lowres; + const int op_index = FFMIN(lowres, 2); + const int s_mask = (2 << lowres) - 1; + int emu = 0; + int sx, sy; + + if (s->quarter_sample) { + motion_x /= 2; + motion_y /= 2; + } + + sx = motion_x & s_mask; + sy = motion_y & s_mask; + src_x += motion_x >> lowres + 1; + src_y += motion_y >> lowres + 1; + + src += src_y * stride + src_x; + + if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) || + (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) { + s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w + 1, + (h + 1) << field_based, src_x, + src_y << field_based, + h_edge_pos, + v_edge_pos); + src = s->edge_emu_buffer; + emu = 1; + } + + sx = (sx << 2) >> lowres; + sy = (sy << 2) >> lowres; + if (field_select) + src += s->linesize; + pix_op[op_index](dest, src, stride, h, sx, sy); + return emu; +} + +/* apply one mpeg motion vector to the three components */ +static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, + uint8_t *dest_y, + uint8_t *dest_cb, + uint8_t *dest_cr, + int field_based, + int bottom_field, + int field_select, + uint8_t **ref_picture, + h264_chroma_mc_func *pix_op, + int motion_x, int motion_y, + int h, int mb_y) +{ + uint8_t *ptr_y, *ptr_cb, *ptr_cr; + int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy, + uvsx, uvsy; + const int lowres = s->avctx->lowres; + const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 2); + const int block_s = 8>>lowres; + const int s_mask = (2 << lowres) - 1; + const int h_edge_pos = s->h_edge_pos >> lowres; + const int v_edge_pos = s->v_edge_pos >> lowres; + linesize = s->current_picture.f.linesize[0] << field_based; + uvlinesize = s->current_picture.f.linesize[1] << field_based; + + // FIXME obviously not perfect but qpel will not work in lowres anyway + if (s->quarter_sample) { + motion_x /= 2; + motion_y /= 2; + } + + if(field_based){ + motion_y += (bottom_field - field_select)*((1 << lowres)-1); + } + + sx = motion_x & s_mask; + sy = motion_y & s_mask; + src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1); + src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1); + + if (s->out_format == FMT_H263) { + uvsx = ((motion_x >> 1) & s_mask) | (sx & 1); + uvsy = ((motion_y >> 1) & s_mask) | (sy & 1); + uvsrc_x = src_x >> 1; + uvsrc_y = src_y >> 1; + } else if (s->out_format == FMT_H261) { + // even chroma mv's are full pel in H261 + mx = motion_x / 4; + my = motion_y / 4; + uvsx = (2 * mx) & s_mask; + uvsy = (2 * my) & s_mask; + uvsrc_x = s->mb_x * block_s + (mx >> lowres); + uvsrc_y = mb_y * block_s + (my >> lowres); + } else { + if(s->chroma_y_shift){ + mx = motion_x / 2; + my = motion_y / 2; + uvsx = mx & s_mask; + uvsy = my & s_mask; + uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1); + uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1); + } else { + if(s->chroma_x_shift){ + //Chroma422 + mx = motion_x / 2; + uvsx = mx & s_mask; + uvsy = motion_y & s_mask; + uvsrc_y = src_y; + uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1)); + } else { + //Chroma444 + uvsx = motion_x & s_mask; + uvsy = motion_y & s_mask; + uvsrc_x = src_x; + uvsrc_y = src_y; + } + } + } + + ptr_y = ref_picture[0] + src_y * linesize + src_x; + ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x; + ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x; + + if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || + (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) { + s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, + linesize >> field_based, 17, 17 + field_based, + src_x, src_y << field_based, h_edge_pos, + v_edge_pos); + ptr_y = s->edge_emu_buffer; + if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { + uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize; + s->vdsp.emulated_edge_mc(uvbuf , ptr_cb, uvlinesize >> field_based, 9, + 9 + field_based, + uvsrc_x, uvsrc_y << field_based, + h_edge_pos >> 1, v_edge_pos >> 1); + s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr, uvlinesize >> field_based, 9, + 9 + field_based, + uvsrc_x, uvsrc_y << field_based, + h_edge_pos >> 1, v_edge_pos >> 1); + ptr_cb = uvbuf; + ptr_cr = uvbuf + 16; + } + } + + // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f.data + if (bottom_field) { + dest_y += s->linesize; + dest_cb += s->uvlinesize; + dest_cr += s->uvlinesize; + } + + if (field_select) { + ptr_y += s->linesize; + ptr_cb += s->uvlinesize; + ptr_cr += s->uvlinesize; + } + + sx = (sx << 2) >> lowres; + sy = (sy << 2) >> lowres; + pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy); + + if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) { + uvsx = (uvsx << 2) >> lowres; + uvsy = (uvsy << 2) >> lowres; + if (h >> s->chroma_y_shift) { + pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); + pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); + } + } + // FIXME h261 lowres loop filter +} + +static inline void chroma_4mv_motion_lowres(MpegEncContext *s, + uint8_t *dest_cb, uint8_t *dest_cr, + uint8_t **ref_picture, + h264_chroma_mc_func * pix_op, + int mx, int my) +{ + const int lowres = s->avctx->lowres; + const int op_index = FFMIN(lowres, 2); + const int block_s = 8 >> lowres; + const int s_mask = (2 << lowres) - 1; + const int h_edge_pos = s->h_edge_pos >> lowres + 1; + const int v_edge_pos = s->v_edge_pos >> lowres + 1; + int emu = 0, src_x, src_y, offset, sx, sy; + uint8_t *ptr; + + if (s->quarter_sample) { + mx /= 2; + my /= 2; + } + + /* In case of 8X8, we construct a single chroma motion vector + with a special rounding */ + mx = ff_h263_round_chroma(mx); + my = ff_h263_round_chroma(my); + + sx = mx & s_mask; + sy = my & s_mask; + src_x = s->mb_x * block_s + (mx >> lowres + 1); + src_y = s->mb_y * block_s + (my >> lowres + 1); + + offset = src_y * s->uvlinesize + src_x; + ptr = ref_picture[1] + offset; + if (s->flags & CODEC_FLAG_EMU_EDGE) { + if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) || + (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) { + s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, + 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); + ptr = s->edge_emu_buffer; + emu = 1; + } + } + sx = (sx << 2) >> lowres; + sy = (sy << 2) >> lowres; + pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy); + + ptr = ref_picture[2] + offset; + if (emu) { + s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, + src_x, src_y, h_edge_pos, v_edge_pos); + ptr = s->edge_emu_buffer; + } + pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy); +} + +/** + * motion compensation of a single macroblock + * @param s context + * @param dest_y luma destination pointer + * @param dest_cb chroma cb/u destination pointer + * @param dest_cr chroma cr/v destination pointer + * @param dir direction (0->forward, 1->backward) + * @param ref_picture array[3] of pointers to the 3 planes of the reference picture + * @param pix_op halfpel motion compensation function (average or put normally) + * the motion vectors are taken from s->mv and the MV type from s->mv_type + */ +static inline void MPV_motion_lowres(MpegEncContext *s, + uint8_t *dest_y, uint8_t *dest_cb, + uint8_t *dest_cr, + int dir, uint8_t **ref_picture, + h264_chroma_mc_func *pix_op) +{ + int mx, my; + int mb_x, mb_y, i; + const int lowres = s->avctx->lowres; + const int block_s = 8 >>lowres; + + mb_x = s->mb_x; + mb_y = s->mb_y; + + switch (s->mv_type) { + case MV_TYPE_16X16: + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 0, 0, 0, + ref_picture, pix_op, + s->mv[dir][0][0], s->mv[dir][0][1], + 2 * block_s, mb_y); + break; + case MV_TYPE_8X8: + mx = 0; + my = 0; + for (i = 0; i < 4; i++) { + hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) * + s->linesize) * block_s, + ref_picture[0], 0, 0, + (2 * mb_x + (i & 1)) * block_s, + (2 * mb_y + (i >> 1)) * block_s, + s->width, s->height, s->linesize, + s->h_edge_pos >> lowres, s->v_edge_pos >> lowres, + block_s, block_s, pix_op, + s->mv[dir][i][0], s->mv[dir][i][1]); + + mx += s->mv[dir][i][0]; + my += s->mv[dir][i][1]; + } + + if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) + chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture, + pix_op, mx, my); + break; + case MV_TYPE_FIELD: + if (s->picture_structure == PICT_FRAME) { + /* top field */ + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 1, 0, s->field_select[dir][0], + ref_picture, pix_op, + s->mv[dir][0][0], s->mv[dir][0][1], + block_s, mb_y); + /* bottom field */ + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 1, 1, s->field_select[dir][1], + ref_picture, pix_op, + s->mv[dir][1][0], s->mv[dir][1][1], + block_s, mb_y); + } else { + if (s->picture_structure != s->field_select[dir][0] + 1 && + s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) { + ref_picture = s->current_picture_ptr->f.data; + + } + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 0, 0, s->field_select[dir][0], + ref_picture, pix_op, + s->mv[dir][0][0], + s->mv[dir][0][1], 2 * block_s, mb_y >> 1); + } + break; + case MV_TYPE_16X8: + for (i = 0; i < 2; i++) { + uint8_t **ref2picture; + + if (s->picture_structure == s->field_select[dir][i] + 1 || + s->pict_type == AV_PICTURE_TYPE_B || s->first_field) { + ref2picture = ref_picture; + } else { + ref2picture = s->current_picture_ptr->f.data; + } + + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 0, 0, s->field_select[dir][i], + ref2picture, pix_op, + s->mv[dir][i][0], s->mv[dir][i][1] + + 2 * block_s * i, block_s, mb_y >> 1); + + dest_y += 2 * block_s * s->linesize; + dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize; + dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize; + } + break; + case MV_TYPE_DMV: + if (s->picture_structure == PICT_FRAME) { + for (i = 0; i < 2; i++) { + int j; + for (j = 0; j < 2; j++) { + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 1, j, j ^ i, + ref_picture, pix_op, + s->mv[dir][2 * i + j][0], + s->mv[dir][2 * i + j][1], + block_s, mb_y); + } + pix_op = s->h264chroma.avg_h264_chroma_pixels_tab; + } + } else { + for (i = 0; i < 2; i++) { + mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, + 0, 0, s->picture_structure != i + 1, + ref_picture, pix_op, + s->mv[dir][2 * i][0],s->mv[dir][2 * i][1], + 2 * block_s, mb_y >> 1); + + // after put we make avg of the same block + pix_op = s->h264chroma.avg_h264_chroma_pixels_tab; + + // opposite parity is always in the same + // frame if this is second field + if (!s->first_field) { + ref_picture = s->current_picture_ptr->f.data; + } + } + } + break; + default: + av_assert2(0); + } +} + +/** + * find the lowest MB row referenced in the MVs + */ +int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir) +{ + int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample; + int my, off, i, mvs; + + if (s->picture_structure != PICT_FRAME || s->mcsel) + goto unhandled; + + switch (s->mv_type) { + case MV_TYPE_16X16: + mvs = 1; + break; + case MV_TYPE_16X8: + mvs = 2; + break; + case MV_TYPE_8X8: + mvs = 4; + break; + default: + goto unhandled; + } + + for (i = 0; i < mvs; i++) { + my = s->mv[dir][i][1]<<qpel_shift; + my_max = FFMAX(my_max, my); + my_min = FFMIN(my_min, my); + } + + off = (FFMAX(-my_min, my_max) + 63) >> 6; + + return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1); +unhandled: + return s->mb_height-1; +} + +/* put block[] to dest[] */ +static inline void put_dct(MpegEncContext *s, + int16_t *block, int i, uint8_t *dest, int line_size, int qscale) +{ + s->dct_unquantize_intra(s, block, i, qscale); + s->dsp.idct_put (dest, line_size, block); +} + +/* add block[] to dest[] */ +static inline void add_dct(MpegEncContext *s, + int16_t *block, int i, uint8_t *dest, int line_size) +{ + if (s->block_last_index[i] >= 0) { + s->dsp.idct_add (dest, line_size, block); + } +} + +static inline void add_dequant_dct(MpegEncContext *s, + int16_t *block, int i, uint8_t *dest, int line_size, int qscale) +{ + if (s->block_last_index[i] >= 0) { + s->dct_unquantize_inter(s, block, i, qscale); + + s->dsp.idct_add (dest, line_size, block); + } +} + +/** + * Clean dc, ac, coded_block for the current non-intra MB. + */ +void ff_clean_intra_table_entries(MpegEncContext *s) +{ + int wrap = s->b8_stride; + int xy = s->block_index[0]; + + s->dc_val[0][xy ] = + s->dc_val[0][xy + 1 ] = + s->dc_val[0][xy + wrap] = + s->dc_val[0][xy + 1 + wrap] = 1024; + /* ac pred */ + memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t)); + memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t)); + if (s->msmpeg4_version>=3) { + s->coded_block[xy ] = + s->coded_block[xy + 1 ] = + s->coded_block[xy + wrap] = + s->coded_block[xy + 1 + wrap] = 0; + } + /* chroma */ + wrap = s->mb_stride; + xy = s->mb_x + s->mb_y * wrap; + s->dc_val[1][xy] = + s->dc_val[2][xy] = 1024; + /* ac pred */ + memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t)); + memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t)); + + s->mbintra_table[xy]= 0; +} + +/* generic function called after a macroblock has been parsed by the + decoder or after it has been encoded by the encoder. + + Important variables used: + s->mb_intra : true if intra macroblock + s->mv_dir : motion vector direction + s->mv_type : motion vector type + s->mv : motion vector + s->interlaced_dct : true if interlaced dct used (mpeg2) + */ +static av_always_inline +void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64], + int lowres_flag, int is_mpeg12) +{ + const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; + if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){ + ff_xvmc_decode_mb(s);//xvmc uses pblocks + return; + } + + if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { + /* print DCT coefficients */ + int i,j; + av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y); + for(i=0; i<6; i++){ + for(j=0; j<64; j++){ + av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]); + } + av_log(s->avctx, AV_LOG_DEBUG, "\n"); + } + } + + s->current_picture.qscale_table[mb_xy] = s->qscale; + + /* update DC predictors for P macroblocks */ + if (!s->mb_intra) { + if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) { + if(s->mbintra_table[mb_xy]) + ff_clean_intra_table_entries(s); + } else { + s->last_dc[0] = + s->last_dc[1] = + s->last_dc[2] = 128 << s->intra_dc_precision; + } + } + else if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) + s->mbintra_table[mb_xy]=1; + + if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc + uint8_t *dest_y, *dest_cb, *dest_cr; + int dct_linesize, dct_offset; + op_pixels_func (*op_pix)[4]; + qpel_mc_func (*op_qpix)[16]; + const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics + const int uvlinesize = s->current_picture.f.linesize[1]; + const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag; + const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8; + + /* avoid copy if macroblock skipped in last frame too */ + /* skip only during decoding as we might trash the buffers during encoding a bit */ + if(!s->encoding){ + uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; + + if (s->mb_skipped) { + s->mb_skipped= 0; + av_assert2(s->pict_type!=AV_PICTURE_TYPE_I); + *mbskip_ptr = 1; + } else if(!s->current_picture.reference) { + *mbskip_ptr = 1; + } else{ + *mbskip_ptr = 0; /* not skipped */ + } + } + + dct_linesize = linesize << s->interlaced_dct; + dct_offset = s->interlaced_dct ? linesize : linesize * block_size; + + if(readable){ + dest_y= s->dest[0]; + dest_cb= s->dest[1]; + dest_cr= s->dest[2]; + }else{ + dest_y = s->b_scratchpad; + dest_cb= s->b_scratchpad+16*linesize; + dest_cr= s->b_scratchpad+32*linesize; + } + + if (!s->mb_intra) { + /* motion handling */ + /* decoding or more than one mb_type (MC was already done otherwise) */ + if(!s->encoding){ + + if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) { + if (s->mv_dir & MV_DIR_FORWARD) { + ff_thread_await_progress(&s->last_picture_ptr->tf, + ff_MPV_lowest_referenced_row(s, 0), + 0); + } + if (s->mv_dir & MV_DIR_BACKWARD) { + ff_thread_await_progress(&s->next_picture_ptr->tf, + ff_MPV_lowest_referenced_row(s, 1), + 0); + } + } + + if(lowres_flag){ + h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab; + + if (s->mv_dir & MV_DIR_FORWARD) { + MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix); + op_pix = s->h264chroma.avg_h264_chroma_pixels_tab; + } + if (s->mv_dir & MV_DIR_BACKWARD) { + MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix); + } + }else{ + op_qpix= s->me.qpel_put; + if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){ + op_pix = s->hdsp.put_pixels_tab; + }else{ + op_pix = s->hdsp.put_no_rnd_pixels_tab; + } + if (s->mv_dir & MV_DIR_FORWARD) { + ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix); + op_pix = s->hdsp.avg_pixels_tab; + op_qpix= s->me.qpel_avg; + } + if (s->mv_dir & MV_DIR_BACKWARD) { + ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix); + } + } + } + + /* skip dequant / idct if we are really late ;) */ + if(s->avctx->skip_idct){ + if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) + ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) + || s->avctx->skip_idct >= AVDISCARD_ALL) + goto skip_idct; + } + + /* add dct residue */ + if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO + || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){ + add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); + add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); + add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); + add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); + + if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ + if (s->chroma_y_shift){ + add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); + add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); + }else{ + dct_linesize >>= 1; + dct_offset >>=1; + add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); + add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); + add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); + add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); + } + } + } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){ + add_dct(s, block[0], 0, dest_y , dct_linesize); + add_dct(s, block[1], 1, dest_y + block_size, dct_linesize); + add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize); + add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize); + + if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ + if(s->chroma_y_shift){//Chroma420 + add_dct(s, block[4], 4, dest_cb, uvlinesize); + add_dct(s, block[5], 5, dest_cr, uvlinesize); + }else{ + //chroma422 + dct_linesize = uvlinesize << s->interlaced_dct; + dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size; + + add_dct(s, block[4], 4, dest_cb, dct_linesize); + add_dct(s, block[5], 5, dest_cr, dct_linesize); + add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); + add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); + if(!s->chroma_x_shift){//Chroma444 + add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize); + add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize); + add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize); + add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize); + } + } + }//fi gray + } + else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) { + ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); + } + } else { + /* dct only in intra block */ + if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){ + put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); + put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); + put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); + put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); + + if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ + if(s->chroma_y_shift){ + put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); + put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); + }else{ + dct_offset >>=1; + dct_linesize >>=1; + put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); + put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); + put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); + put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); + } + } + }else{ + s->dsp.idct_put(dest_y , dct_linesize, block[0]); + s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]); + s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]); + s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]); + + if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ + if(s->chroma_y_shift){ + s->dsp.idct_put(dest_cb, uvlinesize, block[4]); + s->dsp.idct_put(dest_cr, uvlinesize, block[5]); + }else{ + + dct_linesize = uvlinesize << s->interlaced_dct; + dct_offset = s->interlaced_dct? uvlinesize : uvlinesize*block_size; + + s->dsp.idct_put(dest_cb, dct_linesize, block[4]); + s->dsp.idct_put(dest_cr, dct_linesize, block[5]); + s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]); + s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]); + if(!s->chroma_x_shift){//Chroma444 + s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]); + s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]); + s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]); + s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]); + } + } + }//gray + } + } +skip_idct: + if(!readable){ + s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); + s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); + s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); + } + } +} + +void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){ +#if !CONFIG_SMALL + if(s->out_format == FMT_MPEG1) { + if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1); + else MPV_decode_mb_internal(s, block, 0, 1); + } else +#endif + if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0); + else MPV_decode_mb_internal(s, block, 0, 0); +} + +/** + * @param h is the normal height, this will be reduced automatically if needed for the last row + */ +void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur, + Picture *last, int y, int h, int picture_structure, + int first_field, int draw_edges, int low_delay, + int v_edge_pos, int h_edge_pos) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); + int hshift = desc->log2_chroma_w; + int vshift = desc->log2_chroma_h; + const int field_pic = picture_structure != PICT_FRAME; + if(field_pic){ + h <<= 1; + y <<= 1; + } + + if (!avctx->hwaccel && + !(avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) && + draw_edges && + cur->reference && + !(avctx->flags & CODEC_FLAG_EMU_EDGE)) { + int *linesize = cur->f.linesize; + int sides = 0, edge_h; + if (y==0) sides |= EDGE_TOP; + if (y + h >= v_edge_pos) + sides |= EDGE_BOTTOM; + + edge_h= FFMIN(h, v_edge_pos - y); + + dsp->draw_edges(cur->f.data[0] + y * linesize[0], + linesize[0], h_edge_pos, edge_h, + EDGE_WIDTH, EDGE_WIDTH, sides); + dsp->draw_edges(cur->f.data[1] + (y >> vshift) * linesize[1], + linesize[1], h_edge_pos >> hshift, edge_h >> vshift, + EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides); + dsp->draw_edges(cur->f.data[2] + (y >> vshift) * linesize[2], + linesize[2], h_edge_pos >> hshift, edge_h >> vshift, + EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides); + } + + h = FFMIN(h, avctx->height - y); + + if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return; + + if (avctx->draw_horiz_band) { + AVFrame *src; + int offset[AV_NUM_DATA_POINTERS]; + int i; + + if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay || + (avctx->slice_flags & SLICE_FLAG_CODED_ORDER)) + src = &cur->f; + else if (last) + src = &last->f; + else + return; + + if (cur->f.pict_type == AV_PICTURE_TYPE_B && + picture_structure == PICT_FRAME && + avctx->codec_id != AV_CODEC_ID_SVQ3) { + for (i = 0; i < AV_NUM_DATA_POINTERS; i++) + offset[i] = 0; + }else{ + offset[0]= y * src->linesize[0]; + offset[1]= + offset[2]= (y >> vshift) * src->linesize[1]; + for (i = 3; i < AV_NUM_DATA_POINTERS; i++) + offset[i] = 0; + } + + emms_c(); + + avctx->draw_horiz_band(avctx, src, offset, + y, picture_structure, h); + } +} + +void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h) +{ + int draw_edges = s->unrestricted_mv && !s->intra_only; + ff_draw_horiz_band(s->avctx, &s->dsp, &s->current_picture, + &s->last_picture, y, h, s->picture_structure, + s->first_field, draw_edges, s->low_delay, + s->v_edge_pos, s->h_edge_pos); +} + +void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename + const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics + const int uvlinesize = s->current_picture.f.linesize[1]; + const int mb_size= 4 - s->avctx->lowres; + + s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2; + s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2; + s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2; + s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2; + s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; + s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; + //block_index is not used by mpeg2, so it is not affected by chroma_format + + s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size); + s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); + s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); + + if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME)) + { + if(s->picture_structure==PICT_FRAME){ + s->dest[0] += s->mb_y * linesize << mb_size; + s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); + s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); + }else{ + s->dest[0] += (s->mb_y>>1) * linesize << mb_size; + s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); + s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); + av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD)); + } + } +} + +/** + * Permute an 8x8 block. + * @param block the block which will be permuted according to the given permutation vector + * @param permutation the permutation vector + * @param last the last non zero coefficient in scantable order, used to speed the permutation up + * @param scantable the used scantable, this is only used to speed the permutation up, the block is not + * (inverse) permutated to scantable order! + */ +void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last) +{ + int i; + int16_t temp[64]; + + if(last<=0) return; + //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations + + for(i=0; i<=last; i++){ + const int j= scantable[i]; + temp[j]= block[j]; + block[j]=0; + } + + for(i=0; i<=last; i++){ + const int j= scantable[i]; + const int perm_j= permutation[j]; + block[perm_j]= temp[j]; + } +} + +void ff_mpeg_flush(AVCodecContext *avctx){ + int i; + MpegEncContext *s = avctx->priv_data; + + if(s==NULL || s->picture==NULL) + return; + + for (i = 0; i < MAX_PICTURE_COUNT; i++) + ff_mpeg_unref_picture(s, &s->picture[i]); + s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL; + + s->mb_x= s->mb_y= 0; + s->closed_gop= 0; + + s->parse_context.state= -1; + s->parse_context.frame_start_found= 0; + s->parse_context.overread= 0; + s->parse_context.overread_index= 0; + s->parse_context.index= 0; + s->parse_context.last_index= 0; + s->bitstream_buffer_size=0; + s->pp_time=0; +} + +static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, nCoeffs; + const uint16_t *quant_matrix; + + nCoeffs= s->block_last_index[n]; + + block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale; + /* XXX: only mpeg1 */ + quant_matrix = s->intra_matrix; + for(i=1;i<=nCoeffs;i++) { + int j= s->intra_scantable.permutated[i]; + level = block[j]; + if (level) { + if (level < 0) { + level = -level; + level = (int)(level * qscale * quant_matrix[j]) >> 3; + level = (level - 1) | 1; + level = -level; + } else { + level = (int)(level * qscale * quant_matrix[j]) >> 3; + level = (level - 1) | 1; + } + block[j] = level; + } + } +} + +static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, nCoeffs; + const uint16_t *quant_matrix; + + nCoeffs= s->block_last_index[n]; + + quant_matrix = s->inter_matrix; + for(i=0; i<=nCoeffs; i++) { + int j= s->intra_scantable.permutated[i]; + level = block[j]; + if (level) { + if (level < 0) { + level = -level; + level = (((level << 1) + 1) * qscale * + ((int) (quant_matrix[j]))) >> 4; + level = (level - 1) | 1; + level = -level; + } else { + level = (((level << 1) + 1) * qscale * + ((int) (quant_matrix[j]))) >> 4; + level = (level - 1) | 1; + } + block[j] = level; + } + } +} + +static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, nCoeffs; + const uint16_t *quant_matrix; + + if(s->alternate_scan) nCoeffs= 63; + else nCoeffs= s->block_last_index[n]; + + block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale; + quant_matrix = s->intra_matrix; + for(i=1;i<=nCoeffs;i++) { + int j= s->intra_scantable.permutated[i]; + level = block[j]; + if (level) { + if (level < 0) { + level = -level; + level = (int)(level * qscale * quant_matrix[j]) >> 3; + level = -level; + } else { + level = (int)(level * qscale * quant_matrix[j]) >> 3; + } + block[j] = level; + } + } +} + +static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, nCoeffs; + const uint16_t *quant_matrix; + int sum=-1; + + if(s->alternate_scan) nCoeffs= 63; + else nCoeffs= s->block_last_index[n]; + + block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale; + sum += block[0]; + quant_matrix = s->intra_matrix; + for(i=1;i<=nCoeffs;i++) { + int j= s->intra_scantable.permutated[i]; + level = block[j]; + if (level) { + if (level < 0) { + level = -level; + level = (int)(level * qscale * quant_matrix[j]) >> 3; + level = -level; + } else { + level = (int)(level * qscale * quant_matrix[j]) >> 3; + } + block[j] = level; + sum+=level; + } + } + block[63]^=sum&1; +} + +static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, nCoeffs; + const uint16_t *quant_matrix; + int sum=-1; + + if(s->alternate_scan) nCoeffs= 63; + else nCoeffs= s->block_last_index[n]; + + quant_matrix = s->inter_matrix; + for(i=0; i<=nCoeffs; i++) { + int j= s->intra_scantable.permutated[i]; + level = block[j]; + if (level) { + if (level < 0) { + level = -level; + level = (((level << 1) + 1) * qscale * + ((int) (quant_matrix[j]))) >> 4; + level = -level; + } else { + level = (((level << 1) + 1) * qscale * + ((int) (quant_matrix[j]))) >> 4; + } + block[j] = level; + sum+=level; + } + } + block[63]^=sum&1; +} + +static void dct_unquantize_h263_intra_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, qmul, qadd; + int nCoeffs; + + assert(s->block_last_index[n]>=0); + + qmul = qscale << 1; + + if (!s->h263_aic) { + block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale; + qadd = (qscale - 1) | 1; + }else{ + qadd = 0; + } + if(s->ac_pred) + nCoeffs=63; + else + nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; + + for(i=1; i<=nCoeffs; i++) { + level = block[i]; + if (level) { + if (level < 0) { + level = level * qmul - qadd; + } else { + level = level * qmul + qadd; + } + block[i] = level; + } + } +} + +static void dct_unquantize_h263_inter_c(MpegEncContext *s, + int16_t *block, int n, int qscale) +{ + int i, level, qmul, qadd; + int nCoeffs; + + assert(s->block_last_index[n]>=0); + + qadd = (qscale - 1) | 1; + qmul = qscale << 1; + + nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; + + for(i=0; i<=nCoeffs; i++) { + level = block[i]; + if (level) { + if (level < 0) { + level = level * qmul - qadd; + } else { + level = level * qmul + qadd; + } + block[i] = level; + } + } +} + +/** + * set qscale and update qscale dependent variables. + */ +void ff_set_qscale(MpegEncContext * s, int qscale) +{ + if (qscale < 1) + qscale = 1; + else if (qscale > 31) + qscale = 31; + + s->qscale = qscale; + s->chroma_qscale= s->chroma_qscale_table[qscale]; + + s->y_dc_scale= s->y_dc_scale_table[ qscale ]; + s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ]; +} + +void ff_MPV_report_decode_progress(MpegEncContext *s) +{ + if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred) + ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0); +} + +#if CONFIG_ERROR_RESILIENCE +void ff_mpeg_er_frame_start(MpegEncContext *s) +{ + ERContext *er = &s->er; + + er->cur_pic = s->current_picture_ptr; + er->last_pic = s->last_picture_ptr; + er->next_pic = s->next_picture_ptr; + + er->pp_time = s->pp_time; + er->pb_time = s->pb_time; + er->quarter_sample = s->quarter_sample; + er->partitioned_frame = s->partitioned_frame; + + ff_er_frame_start(er); +} +#endif /* CONFIG_ERROR_RESILIENCE */ |