diff options
Diffstat (limited to 'ffmpeg/libavcodec/v210dec.c')
| -rw-r--r-- | ffmpeg/libavcodec/v210dec.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/ffmpeg/libavcodec/v210dec.c b/ffmpeg/libavcodec/v210dec.c deleted file mode 100644 index ae03952..0000000 --- a/ffmpeg/libavcodec/v210dec.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * V210 decoder - * - * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at> - * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> - * - * 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 - */ - -#include "avcodec.h" -#include "internal.h" -#include "v210dec.h" -#include "libavutil/bswap.h" -#include "libavutil/internal.h" -#include "libavutil/mem.h" - -#define READ_PIXELS(a, b, c) \ - do { \ - val = av_le2ne32(*src++); \ - *a++ = val & 0x3FF; \ - *b++ = (val >> 10) & 0x3FF; \ - *c++ = (val >> 20) & 0x3FF; \ - } while (0) - -static void v210_planar_unpack_c(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width) -{ - uint32_t val; - int i; - - for( i = 0; i < width-5; i += 6 ){ - READ_PIXELS(u, y, v); - READ_PIXELS(y, u, y); - READ_PIXELS(v, y, u); - READ_PIXELS(y, v, y); - } -} - -static av_cold int decode_init(AVCodecContext *avctx) -{ - V210DecContext *s = avctx->priv_data; - - if (avctx->width & 1) { - av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n"); - return AVERROR_INVALIDDATA; - } - avctx->pix_fmt = AV_PIX_FMT_YUV422P10; - avctx->bits_per_raw_sample = 10; - - s->unpack_frame = v210_planar_unpack_c; - - if (HAVE_MMX) - v210_x86_init(s); - - return 0; -} - -static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, - AVPacket *avpkt) -{ - V210DecContext *s = avctx->priv_data; - - int h, w, ret, stride, aligned_input; - AVFrame *pic = data; - const uint8_t *psrc = avpkt->data; - uint16_t *y, *u, *v; - - if (s->custom_stride ) - stride = s->custom_stride; - else { - int aligned_width = ((avctx->width + 47) / 48) * 48; - stride = aligned_width * 8 / 3; - } - - if (avpkt->size < stride * avctx->height) { - if ((((avctx->width + 23) / 24) * 24 * 8) / 3 * avctx->height == avpkt->size) { - stride = avpkt->size / avctx->height; - if (!s->stride_warning_shown) - av_log(avctx, AV_LOG_WARNING, "Broken v210 with too small padding (64 byte) detected\n"); - s->stride_warning_shown = 1; - } else { - av_log(avctx, AV_LOG_ERROR, "packet too small\n"); - return AVERROR_INVALIDDATA; - } - } - - aligned_input = !((uintptr_t)psrc & 0xf) && !(stride & 0xf); - if (aligned_input != s->aligned_input) { - s->aligned_input = aligned_input; - if (HAVE_MMX) - v210_x86_init(s); - } - - if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) - return ret; - - y = (uint16_t*)pic->data[0]; - u = (uint16_t*)pic->data[1]; - v = (uint16_t*)pic->data[2]; - pic->pict_type = AV_PICTURE_TYPE_I; - pic->key_frame = 1; - - for (h = 0; h < avctx->height; h++) { - const uint32_t *src = (const uint32_t*)psrc; - uint32_t val; - - w = (avctx->width / 6) * 6; - s->unpack_frame(src, y, u, v, w); - - y += w; - u += w >> 1; - v += w >> 1; - src += (w << 1) / 3; - - if (w < avctx->width - 1) { - READ_PIXELS(u, y, v); - - val = av_le2ne32(*src++); - *y++ = val & 0x3FF; - if (w < avctx->width - 3) { - *u++ = (val >> 10) & 0x3FF; - *y++ = (val >> 20) & 0x3FF; - - val = av_le2ne32(*src++); - *v++ = val & 0x3FF; - *y++ = (val >> 10) & 0x3FF; - } - } - - psrc += stride; - y += pic->linesize[0] / 2 - avctx->width; - u += pic->linesize[1] / 2 - avctx->width / 2; - v += pic->linesize[2] / 2 - avctx->width / 2; - } - - if (avctx->field_order > AV_FIELD_PROGRESSIVE) { - /* we have interlaced material flagged in container */ - pic->interlaced_frame = 1; - if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB) - pic->top_field_first = 1; - } - - *got_frame = 1; - - return avpkt->size; -} - -#define V210DEC_FLAGS AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM -static const AVOption v210dec_options[] = { - {"custom_stride", "Custom V210 stride", offsetof(V210DecContext, custom_stride), FF_OPT_TYPE_INT, - {.i64 = 0}, INT_MIN, INT_MAX, V210DEC_FLAGS}, - {NULL} -}; - -static const AVClass v210dec_class = { - "V210 Decoder", - av_default_item_name, - v210dec_options, - LIBAVUTIL_VERSION_INT, -}; - -AVCodec ff_v210_decoder = { - .name = "v210", - .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_V210, - .priv_data_size = sizeof(V210DecContext), - .init = decode_init, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1, - .priv_class = &v210dec_class, -}; |