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indeo5: return proper error codes

This commit is contained in:
Luca Barbato 2013-07-14 14:41:56 +02:00
parent 25a6666f6c
commit b0eeb9d442
1 changed files with 30 additions and 24 deletions
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54
libavcodec/indeo5.c
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@ -74,7 +74,7 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
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;
return AVERROR_INVALIDDATA;
}
/* decode number of wavelet bands */
@ -85,7 +85,7 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
if (ctx->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;
return AVERROR_INVALIDDATA;
}
pic_size_indx = get_bits(&ctx->gb, 4);
@ -98,8 +98,8 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
}
if (ctx->gop_flags & 2) {
av_log(avctx, AV_LOG_ERROR, "YV12 picture format not supported!\n");
return -1;
avpriv_report_missing_feature(avctx, "YV12 picture format");
return AVERROR_PATCHWELCOME;
}
pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;
@ -115,9 +115,9 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
/* 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) {
if (result < 0) {
av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n");
return -1;
return result;
}
ctx->pic_conf = pic_conf;
blk_size_changed = 1; /* force reallocation of the internal structures */
@ -140,8 +140,8 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
}
if (get_bits1(&ctx->gb)) {
av_log(avctx, AV_LOG_ERROR, "Extended transform info encountered!\n");
return -1;
avpriv_report_missing_feature(avctx, "Extended transform info");
return AVERROR_PATCHWELCOME;
}
/* select transform function and scan pattern according to plane and band number */
@ -209,7 +209,7 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
if (get_bits(&ctx->gb, 2)) {
av_log(avctx, AV_LOG_ERROR, "End marker missing!\n");
return -1;
return AVERROR_INVALIDDATA;
}
}
}
@ -238,17 +238,17 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx)
if (blk_size_changed) {
result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width,
pic_conf.tile_height);
if (result) {
if (result < 0) {
av_log(avctx, AV_LOG_ERROR,
"Couldn't reallocate internal structures!\n");
return -1;
return result;
}
}
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;
return AVERROR_INVALIDDATA;
}
if (get_bits1(&ctx->gb))
@ -297,25 +297,27 @@ static inline void skip_hdr_extension(GetBitContext *gb)
*/
static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx)
{
int ret;
if (get_bits(&ctx->gb, 5) != 0x1F) {
av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n");
return -1;
return AVERROR_INVALIDDATA;
}
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;
return AVERROR_INVALIDDATA;
}
ctx->frame_num = get_bits(&ctx->gb, 8);
if (ctx->frame_type == FRAMETYPE_INTRA) {
ctx->gop_invalid = 1;
if (decode_gop_header(ctx, avctx)) {
if ((ret = decode_gop_header(ctx, avctx)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid GOP header, skipping frames.\n");
return AVERROR_INVALIDDATA;
return ret;
}
ctx->gop_invalid = 0;
}
@ -332,8 +334,10 @@ static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx)
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;
ret = ff_ivi_dec_huff_desc(&ctx->gb, ctx->frame_flags & 0x40,
IVI_MB_HUFF, &ctx->mb_vlc, avctx);
if (ret < 0)
return ret;
skip_bits(&ctx->gb, 3); /* FIXME: unknown meaning! */
}
@ -355,7 +359,7 @@ static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx)
static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,
AVCodecContext *avctx)
{
int i;
int i, ret;
uint8_t band_flags;
band_flags = get_bits(&ctx->gb, 8);
@ -379,7 +383,7 @@ static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,
if (band->num_corr > 61) {
av_log(avctx, AV_LOG_ERROR, "Too many corrections: %d\n",
band->num_corr);
return -1;
return AVERROR_INVALIDDATA;
}
/* read correction pairs */
@ -391,8 +395,10 @@ static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *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;
ret = ff_ivi_dec_huff_desc(&ctx->gb, band_flags & 0x80, IVI_BLK_HUFF,
&band->blk_vlc, avctx);
if (ret < 0)
return ret;
band->checksum_present = get_bits1(&ctx->gb);
if (band->checksum_present)
@ -459,7 +465,7 @@ static int decode_mb_info(IVI45DecContext *ctx, IVIBandDesc *band,
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;
return AVERROR_INVALIDDATA;
}
mb->type = 1; /* empty macroblocks are always INTER */
mb->cbp = 0; /* all blocks are empty */
@ -623,7 +629,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
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;
return AVERROR_INVALIDDATA;
}
ctx->buf_switch = 0;