From de1824e970d448a84bedce4936c301c322baa714 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 11 May 2012 18:37:41 +0200 Subject: [PATCH] mpeg12: fix logic that prevents extradata from being parsed twice. Signed-off-by: Michael Niedermayer --- libavcodec/mpeg12.c | 3 ++- libavcodec/mpeg12.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index 30456e9036..c7118a592c 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -2286,12 +2286,13 @@ static int mpeg_decode_frame(AVCodecContext *avctx, s->slice_count = 0; - if (avctx->extradata && !avctx->frame_number) { + if (avctx->extradata && !s->parsed_extra) { int ret = decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size); if(*data_size) { av_log(avctx, AV_LOG_ERROR, "picture in extradata\n"); *data_size = 0; } + s->parsed_extra = 1; if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) return ret; } diff --git a/libavcodec/mpeg12.h b/libavcodec/mpeg12.h index 9a9cc85dee..c8cec48d7f 100644 --- a/libavcodec/mpeg12.h +++ b/libavcodec/mpeg12.h @@ -42,6 +42,7 @@ typedef struct Mpeg1Context { AVRational frame_rate_ext; ///< MPEG-2 specific framerate modificator int sync; ///< Did we reach a sync point like a GOP/SEQ/KEYFrame? int tmpgexs; + int parsed_extra; } Mpeg1Context; extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];