diff options
Diffstat (limited to 'ffmpeg/libavcodec/indeo5.c')
| -rw-r--r-- | ffmpeg/libavcodec/indeo5.c | 676 |
1 files changed, 676 insertions, 0 deletions
diff --git a/ffmpeg/libavcodec/indeo5.c b/ffmpeg/libavcodec/indeo5.c new file mode 100644 index 0000000..65bd9f2 --- /dev/null +++ b/ffmpeg/libavcodec/indeo5.c @@ -0,0 +1,676 @@ +/* + * Indeo Video Interactive v5 compatible decoder + * Copyright (c) 2009 Maxim Poliakovski + * + * 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 + * Indeo Video Interactive version 5 decoder + * + * Indeo5 data is usually transported within .avi or .mov files. + * Known FOURCCs: 'IV50' + */ + +#define BITSTREAM_READER_LE +#include "avcodec.h" +#include "get_bits.h" +#include "dsputil.h" +#include "ivi_dsp.h" +#include "ivi_common.h" +#include "indeo5data.h" + +/** + * Indeo5 frame types. + */ +enum { + FRAMETYPE_INTRA = 0, + FRAMETYPE_INTER = 1, ///< non-droppable P-frame + FRAMETYPE_INTER_SCAL = 2, ///< droppable P-frame used in the scalability mode + FRAMETYPE_INTER_NOREF = 3, ///< droppable P-frame + FRAMETYPE_NULL = 4 ///< empty frame with no data +}; + +#define IVI5_PIC_SIZE_ESC 15 + +/** + * Decode Indeo5 GOP (Group of pictures) header. + * This header is present in key frames only. + * It defines parameters for all frames in a GOP. + * + * @param[in,out] ctx ptr to the decoder context + * @param[in] avctx ptr to the AVCodecContext + * @return result code: 0 = OK, -1 = error + */ +static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx) +{ + int result, i, p, tile_size, pic_size_indx, mb_size, blk_size, is_scalable; + int quant_mat, blk_size_changed = 0; + IVIBandDesc *band, *band1, *band2; + IVIPicConfig pic_conf; + + ctx->gop_flags = get_bits(&ctx->gb, 8); + + ctx->gop_hdr_size = (ctx->gop_flags & 1) ? get_bits(&ctx->gb, 16) : 0; + + if (ctx->gop_flags & IVI5_IS_PROTECTED) + ctx->lock_word = get_bits_long(&ctx->gb, 32); + + tile_size = (ctx->gop_flags & 0x40) ? 64 << get_bits(&ctx->gb, 2) : 0; + if (tile_size > 256) { + av_log(avctx, AV_LOG_ERROR, "Invalid tile size: %d\n", tile_size); + return -1; + } + + /* decode number of wavelet bands */ + /* num_levels * 3 + 1 */ + pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1; + pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1; + is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1; + if (is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) { + av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n", + pic_conf.luma_bands, pic_conf.chroma_bands); + return -1; + } + + pic_size_indx = get_bits(&ctx->gb, 4); + if (pic_size_indx == IVI5_PIC_SIZE_ESC) { + pic_conf.pic_height = get_bits(&ctx->gb, 13); + pic_conf.pic_width = get_bits(&ctx->gb, 13); + } else { + pic_conf.pic_height = ivi5_common_pic_sizes[pic_size_indx * 2 + 1] << 2; + pic_conf.pic_width = ivi5_common_pic_sizes[pic_size_indx * 2 ] << 2; + } + + if (ctx->gop_flags & 2) { + av_log(avctx, AV_LOG_ERROR, "YV12 picture format not supported!\n"); + return -1; + } + + pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2; + pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2; + + if (!tile_size) { + pic_conf.tile_height = pic_conf.pic_height; + pic_conf.tile_width = pic_conf.pic_width; + } else { + pic_conf.tile_height = pic_conf.tile_width = tile_size; + } + + /* check if picture layout was changed and reallocate buffers */ + if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) { + result = ff_ivi_init_planes(ctx->planes, &pic_conf); + if (result) { + av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n"); + return -1; + } + ctx->pic_conf = pic_conf; + ctx->is_scalable = is_scalable; + blk_size_changed = 1; /* force reallocation of the internal structures */ + } + + for (p = 0; p <= 1; p++) { + for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) { + band = &ctx->planes[p].bands[i]; + + band->is_halfpel = get_bits1(&ctx->gb); + + mb_size = get_bits1(&ctx->gb); + blk_size = 8 >> get_bits1(&ctx->gb); + mb_size = blk_size << !mb_size; + + if (p==0 && blk_size==4) { + av_log(avctx, AV_LOG_ERROR, "4x4 luma blocks are unsupported!\n"); + return AVERROR_PATCHWELCOME; + } + + blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size; + if (blk_size_changed) { + band->mb_size = mb_size; + band->blk_size = blk_size; + } + + if (get_bits1(&ctx->gb)) { + av_log(avctx, AV_LOG_ERROR, "Extended transform info encountered!\n"); + return -1; + } + + /* select transform function and scan pattern according to plane and band number */ + switch ((p << 2) + i) { + case 0: + band->inv_transform = ff_ivi_inverse_slant_8x8; + band->dc_transform = ff_ivi_dc_slant_2d; + band->scan = ff_zigzag_direct; + band->transform_size= 8; + break; + + case 1: + band->inv_transform = ff_ivi_row_slant8; + band->dc_transform = ff_ivi_dc_row_slant; + band->scan = ff_ivi_vertical_scan_8x8; + band->transform_size= 8; + break; + + case 2: + band->inv_transform = ff_ivi_col_slant8; + band->dc_transform = ff_ivi_dc_col_slant; + band->scan = ff_ivi_horizontal_scan_8x8; + band->transform_size= 8; + break; + + case 3: + band->inv_transform = ff_ivi_put_pixels_8x8; + band->dc_transform = ff_ivi_put_dc_pixel_8x8; + band->scan = ff_ivi_horizontal_scan_8x8; + band->transform_size= 8; + break; + + case 4: + band->inv_transform = ff_ivi_inverse_slant_4x4; + band->dc_transform = ff_ivi_dc_slant_2d; + band->scan = ff_ivi_direct_scan_4x4; + band->transform_size= 4; + break; + } + + band->is_2d_trans = band->inv_transform == ff_ivi_inverse_slant_8x8 || + band->inv_transform == ff_ivi_inverse_slant_4x4; + + /* select dequant matrix according to plane and band number */ + if (!p) { + quant_mat = (pic_conf.luma_bands > 1) ? i+1 : 0; + } else { + quant_mat = 5; + } + + if (band->blk_size == 8) { + if(quant_mat >= 5){ + av_log(avctx, AV_LOG_ERROR, "quant_mat %d too large!\n", quant_mat); + return -1; + } + band->intra_base = &ivi5_base_quant_8x8_intra[quant_mat][0]; + band->inter_base = &ivi5_base_quant_8x8_inter[quant_mat][0]; + band->intra_scale = &ivi5_scale_quant_8x8_intra[quant_mat][0]; + band->inter_scale = &ivi5_scale_quant_8x8_inter[quant_mat][0]; + } else { + band->intra_base = ivi5_base_quant_4x4_intra; + band->inter_base = ivi5_base_quant_4x4_inter; + band->intra_scale = ivi5_scale_quant_4x4_intra; + band->inter_scale = ivi5_scale_quant_4x4_inter; + } + + if (get_bits(&ctx->gb, 2)) { + av_log(avctx, AV_LOG_ERROR, "End marker missing!\n"); + return -1; + } + } + } + + /* copy chroma parameters into the 2nd chroma plane */ + for (i = 0; i < pic_conf.chroma_bands; i++) { + band1 = &ctx->planes[1].bands[i]; + band2 = &ctx->planes[2].bands[i]; + + band2->width = band1->width; + band2->height = band1->height; + band2->mb_size = band1->mb_size; + band2->blk_size = band1->blk_size; + band2->is_halfpel = band1->is_halfpel; + band2->intra_base = band1->intra_base; + band2->inter_base = band1->inter_base; + band2->intra_scale = band1->intra_scale; + band2->inter_scale = band1->inter_scale; + band2->scan = band1->scan; + band2->inv_transform = band1->inv_transform; + band2->dc_transform = band1->dc_transform; + band2->is_2d_trans = band1->is_2d_trans; + band2->transform_size= band1->transform_size; + } + + /* reallocate internal structures if needed */ + if (blk_size_changed) { + result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width, + pic_conf.tile_height); + if (result) { + av_log(avctx, AV_LOG_ERROR, + "Couldn't reallocate internal structures!\n"); + return -1; + } + } + + if (ctx->gop_flags & 8) { + if (get_bits(&ctx->gb, 3)) { + av_log(avctx, AV_LOG_ERROR, "Alignment bits are not zero!\n"); + return -1; + } + + if (get_bits1(&ctx->gb)) + skip_bits_long(&ctx->gb, 24); /* skip transparency fill color */ + } + + align_get_bits(&ctx->gb); + + skip_bits(&ctx->gb, 23); /* FIXME: unknown meaning */ + + /* skip GOP extension if any */ + if (get_bits1(&ctx->gb)) { + do { + i = get_bits(&ctx->gb, 16); + } while (i & 0x8000); + } + + align_get_bits(&ctx->gb); + + return 0; +} + + +/** + * Skip a header extension. + * + * @param[in,out] gb the GetBit context + */ +static inline void skip_hdr_extension(GetBitContext *gb) +{ + int i, len; + + do { + len = get_bits(gb, 8); + for (i = 0; i < len; i++) skip_bits(gb, 8); + } while(len); +} + + +/** + * Decode Indeo5 picture header. + * + * @param[in,out] ctx ptr to the decoder context + * @param[in] avctx ptr to the AVCodecContext + * @return result code: 0 = OK, -1 = error + */ +static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx) +{ + if (get_bits(&ctx->gb, 5) != 0x1F) { + av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n"); + return -1; + } + + ctx->prev_frame_type = ctx->frame_type; + ctx->frame_type = get_bits(&ctx->gb, 3); + if (ctx->frame_type >= 5) { + av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d \n", ctx->frame_type); + return -1; + } + + ctx->frame_num = get_bits(&ctx->gb, 8); + + if (ctx->frame_type == FRAMETYPE_INTRA) { + ctx->gop_invalid = 1; + if (decode_gop_header(ctx, avctx)) { + av_log(avctx, AV_LOG_ERROR, "Invalid GOP header, skipping frames.\n"); + return AVERROR_INVALIDDATA; + } + ctx->gop_invalid = 0; + } + + if (ctx->frame_type == FRAMETYPE_INTER_SCAL && !ctx->is_scalable) { + av_log(avctx, AV_LOG_ERROR, "Scalable inter frame in non scaleable stream\n"); + ctx->frame_type = FRAMETYPE_INTER; + return AVERROR_INVALIDDATA; + } + + if (ctx->frame_type != FRAMETYPE_NULL) { + ctx->frame_flags = get_bits(&ctx->gb, 8); + + ctx->pic_hdr_size = (ctx->frame_flags & 1) ? get_bits_long(&ctx->gb, 24) : 0; + + ctx->checksum = (ctx->frame_flags & 0x10) ? get_bits(&ctx->gb, 16) : 0; + + /* skip unknown extension if any */ + if (ctx->frame_flags & 0x20) + skip_hdr_extension(&ctx->gb); /* XXX: untested */ + + /* decode macroblock huffman codebook */ + if (ff_ivi_dec_huff_desc(&ctx->gb, ctx->frame_flags & 0x40, IVI_MB_HUFF, &ctx->mb_vlc, avctx)) + return -1; + + skip_bits(&ctx->gb, 3); /* FIXME: unknown meaning! */ + } + + align_get_bits(&ctx->gb); + + return 0; +} + + +/** + * Decode Indeo5 band header. + * + * @param[in,out] ctx ptr to the decoder context + * @param[in,out] band ptr to the band descriptor + * @param[in] avctx ptr to the AVCodecContext + * @return result code: 0 = OK, -1 = error + */ +static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band, + AVCodecContext *avctx) +{ + int i; + uint8_t band_flags; + + band_flags = get_bits(&ctx->gb, 8); + + if (band_flags & 1) { + band->is_empty = 1; + return 0; + } + + band->data_size = (ctx->frame_flags & 0x80) ? get_bits_long(&ctx->gb, 24) : 0; + + band->inherit_mv = band_flags & 2; + band->inherit_qdelta = band_flags & 8; + band->qdelta_present = band_flags & 4; + if (!band->qdelta_present) band->inherit_qdelta = 1; + + /* decode rvmap probability corrections if any */ + band->num_corr = 0; /* there are no corrections */ + if (band_flags & 0x10) { + band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */ + if (band->num_corr > 61) { + av_log(avctx, AV_LOG_ERROR, "Too many corrections: %d\n", + band->num_corr); + return -1; + } + + /* read correction pairs */ + for (i = 0; i < band->num_corr * 2; i++) + band->corr[i] = get_bits(&ctx->gb, 8); + } + + /* select appropriate rvmap table for this band */ + band->rvmap_sel = (band_flags & 0x40) ? get_bits(&ctx->gb, 3) : 8; + + /* decode block huffman codebook */ + if (ff_ivi_dec_huff_desc(&ctx->gb, band_flags & 0x80, IVI_BLK_HUFF, &band->blk_vlc, avctx)) + return -1; + + band->checksum_present = get_bits1(&ctx->gb); + if (band->checksum_present) + band->checksum = get_bits(&ctx->gb, 16); + + band->glob_quant = get_bits(&ctx->gb, 5); + + /* skip unknown extension if any */ + if (band_flags & 0x20) { /* XXX: untested */ + align_get_bits(&ctx->gb); + skip_hdr_extension(&ctx->gb); + } + + align_get_bits(&ctx->gb); + + return 0; +} + + +/** + * Decode info (block type, cbp, quant delta, motion vector) + * for all macroblocks in the current tile. + * + * @param[in,out] ctx ptr to the decoder context + * @param[in,out] band ptr to the band descriptor + * @param[in,out] tile ptr to the tile descriptor + * @param[in] avctx ptr to the AVCodecContext + * @return result code: 0 = OK, -1 = error + */ +static int decode_mb_info(IVI45DecContext *ctx, IVIBandDesc *band, + IVITile *tile, AVCodecContext *avctx) +{ + int x, y, mv_x, mv_y, mv_delta, offs, mb_offset, + mv_scale, blks_per_mb, s; + IVIMbInfo *mb, *ref_mb; + int row_offset = band->mb_size * band->pitch; + + mb = tile->mbs; + ref_mb = tile->ref_mbs; + offs = tile->ypos * band->pitch + tile->xpos; + + if (!ref_mb && + ((band->qdelta_present && band->inherit_qdelta) || band->inherit_mv)) + return AVERROR_INVALIDDATA; + + if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) { + av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches parameters %d\n", + tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)); + return AVERROR_INVALIDDATA; + } + + /* scale factor for motion vectors */ + mv_scale = (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3); + mv_x = mv_y = 0; + + for (y = tile->ypos; y < (tile->ypos + tile->height); y += band->mb_size) { + mb_offset = offs; + + for (x = tile->xpos; x < (tile->xpos + tile->width); x += band->mb_size) { + mb->xpos = x; + mb->ypos = y; + mb->buf_offs = mb_offset; + + if (get_bits1(&ctx->gb)) { + if (ctx->frame_type == FRAMETYPE_INTRA) { + av_log(avctx, AV_LOG_ERROR, "Empty macroblock in an INTRA picture!\n"); + return -1; + } + mb->type = 1; /* empty macroblocks are always INTER */ + mb->cbp = 0; /* all blocks are empty */ + + mb->q_delta = 0; + if (!band->plane && !band->band_num && (ctx->frame_flags & 8)) { + mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table, + IVI_VLC_BITS, 1); + mb->q_delta = IVI_TOSIGNED(mb->q_delta); + } + + mb->mv_x = mb->mv_y = 0; /* no motion vector coded */ + if (band->inherit_mv && ref_mb){ + /* motion vector inheritance */ + if (mv_scale) { + mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale); + mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale); + } else { + mb->mv_x = ref_mb->mv_x; + mb->mv_y = ref_mb->mv_y; + } + } + } else { + if (band->inherit_mv && ref_mb) { + mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */ + } else if (ctx->frame_type == FRAMETYPE_INTRA) { + mb->type = 0; /* mb_type is always INTRA for intra-frames */ + } else { + mb->type = get_bits1(&ctx->gb); + } + + blks_per_mb = band->mb_size != band->blk_size ? 4 : 1; + mb->cbp = get_bits(&ctx->gb, blks_per_mb); + + mb->q_delta = 0; + if (band->qdelta_present) { + if (band->inherit_qdelta) { + if (ref_mb) mb->q_delta = ref_mb->q_delta; + } else if (mb->cbp || (!band->plane && !band->band_num && + (ctx->frame_flags & 8))) { + mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table, + IVI_VLC_BITS, 1); + mb->q_delta = IVI_TOSIGNED(mb->q_delta); + } + } + + if (!mb->type) { + mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */ + } else { + if (band->inherit_mv && ref_mb){ + /* motion vector inheritance */ + if (mv_scale) { + mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale); + mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale); + } else { + mb->mv_x = ref_mb->mv_x; + mb->mv_y = ref_mb->mv_y; + } + } else { + /* decode motion vector deltas */ + mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table, + IVI_VLC_BITS, 1); + mv_y += IVI_TOSIGNED(mv_delta); + mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table, + IVI_VLC_BITS, 1); + mv_x += IVI_TOSIGNED(mv_delta); + mb->mv_x = mv_x; + mb->mv_y = mv_y; + } + } + } + + s= band->is_halfpel; + if (mb->type) + if ( x + (mb->mv_x >>s) + (y+ (mb->mv_y >>s))*band->pitch < 0 || + x + ((mb->mv_x+s)>>s) + band->mb_size - 1 + + (y+band->mb_size - 1 +((mb->mv_y+s)>>s))*band->pitch > band->bufsize - 1) { + av_log(avctx, AV_LOG_ERROR, "motion vector %d %d outside reference\n", x*s + mb->mv_x, y*s + mb->mv_y); + return AVERROR_INVALIDDATA; + } + + mb++; + if (ref_mb) + ref_mb++; + mb_offset += band->mb_size; + } + + offs += row_offset; + } + + align_get_bits(&ctx->gb); + + return 0; +} + + +/** + * Switch buffers. + * + * @param[in,out] ctx ptr to the decoder context + */ +static void switch_buffers(IVI45DecContext *ctx) +{ + switch (ctx->prev_frame_type) { + case FRAMETYPE_INTRA: + case FRAMETYPE_INTER: + ctx->buf_switch ^= 1; + ctx->dst_buf = ctx->buf_switch; + ctx->ref_buf = ctx->buf_switch ^ 1; + break; + case FRAMETYPE_INTER_SCAL: + if (!ctx->inter_scal) { + ctx->ref2_buf = 2; + ctx->inter_scal = 1; + } + FFSWAP(int, ctx->dst_buf, ctx->ref2_buf); + ctx->ref_buf = ctx->ref2_buf; + break; + case FRAMETYPE_INTER_NOREF: + break; + } + + switch (ctx->frame_type) { + case FRAMETYPE_INTRA: + ctx->buf_switch = 0; + /* FALLTHROUGH */ + case FRAMETYPE_INTER: + ctx->inter_scal = 0; + ctx->dst_buf = ctx->buf_switch; + ctx->ref_buf = ctx->buf_switch ^ 1; + break; + case FRAMETYPE_INTER_SCAL: + case FRAMETYPE_INTER_NOREF: + case FRAMETYPE_NULL: + break; + } +} + + +static int is_nonnull_frame(IVI45DecContext *ctx) +{ + return ctx->frame_type != FRAMETYPE_NULL; +} + + +/** + * Initialize Indeo5 decoder. + */ +static av_cold int decode_init(AVCodecContext *avctx) +{ + IVI45DecContext *ctx = avctx->priv_data; + int result; + + ff_ivi_init_static_vlc(); + + /* copy rvmap tables in our context so we can apply changes to them */ + memcpy(ctx->rvmap_tabs, ff_ivi_rvmap_tabs, sizeof(ff_ivi_rvmap_tabs)); + + /* set the initial picture layout according to the basic profile: + there is only one band per plane (no scalability), only one tile (no local decoding) + and picture format = YVU9 */ + ctx->pic_conf.pic_width = avctx->width; + ctx->pic_conf.pic_height = avctx->height; + ctx->pic_conf.chroma_width = (avctx->width + 3) >> 2; + ctx->pic_conf.chroma_height = (avctx->height + 3) >> 2; + ctx->pic_conf.tile_width = avctx->width; + ctx->pic_conf.tile_height = avctx->height; + ctx->pic_conf.luma_bands = ctx->pic_conf.chroma_bands = 1; + + result = ff_ivi_init_planes(ctx->planes, &ctx->pic_conf); + if (result) { + av_log(avctx, AV_LOG_ERROR, "Couldn't allocate color planes!\n"); + return -1; + } + + ctx->buf_switch = 0; + ctx->inter_scal = 0; + + ctx->decode_pic_hdr = decode_pic_hdr; + ctx->decode_band_hdr = decode_band_hdr; + ctx->decode_mb_info = decode_mb_info; + ctx->switch_buffers = switch_buffers; + ctx->is_nonnull_frame = is_nonnull_frame; + + avctx->pix_fmt = AV_PIX_FMT_YUV410P; + + return 0; +} + +AVCodec ff_indeo5_decoder = { + .name = "indeo5", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_INDEO5, + .priv_data_size = sizeof(IVI45DecContext), + .init = decode_init, + .close = ff_ivi_decode_close, + .decode = ff_ivi_decode_frame, + .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 5"), + .capabilities = CODEC_CAP_DR1, +}; |