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mpeg12: move closed_gop from MpegEncContext to Mpeg1Context 

It's MPEG-1/2 specific.
This commit is contained in:
Anton Khirnov 2011-10-19 09:28:45 +02:00
parent da22ba7df4
commit 3fc0830432
4 changed files with 5 additions and 5 deletions
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7
libavcodec/mpeg12.c
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@ -2111,7 +2111,7 @@ static void mpeg_decode_gop(AVCodecContext *avctx,
time_code_seconds = get_bits(&s->gb, 6);
time_code_pictures = get_bits(&s->gb, 6);
s->closed_gop = get_bits1(&s->gb);
s1->closed_gop = get_bits1(&s->gb);
/*broken_link indicate that after editing the
reference frames of the first B-Frames after GOP I-Frame
are missing (open gop)*/
@ -2120,7 +2120,7 @@ static void mpeg_decode_gop(AVCodecContext *avctx,
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
av_log(s->avctx, AV_LOG_DEBUG, "GOP (%2d:%02d:%02d.[%02d]) closed_gop=%d broken_link=%d\n",
time_code_hours, time_code_minutes, time_code_seconds,
time_code_pictures, s->closed_gop, broken_link);
time_code_pictures, s1->closed_gop, broken_link);
}
/**
* Find the end of the current frame in the bitstream.
@ -2383,7 +2383,7 @@ static int decode_chunks(AVCodecContext *avctx,
if (s2->last_picture_ptr == NULL) {
/* Skip B-frames if we do not have reference frames and gop is not closed */
if (s2->pict_type == AV_PICTURE_TYPE_B) {
if (!s2->closed_gop)
if (!s->closed_gop)
break;
}
}
@ -2467,6 +2467,7 @@ static void flush(AVCodecContext *avctx)
Mpeg1Context *s = avctx->priv_data;
s->sync=0;
s->closed_gop = 0;
ff_mpeg_flush(avctx);
}

1
libavcodec/mpeg12.h
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@ -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 full_pel[2];
int closed_gop; ///< GOP is closed
} Mpeg1Context;
extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];

1
libavcodec/mpegvideo.c
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@ -2404,7 +2404,6 @@ void ff_mpeg_flush(AVCodecContext *avctx){
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;

1
libavcodec/mpegvideo.h
View File

@ -329,7 +329,6 @@ typedef struct MpegEncContext {
int *lambda_table;
int adaptive_quant; ///< use adaptive quantization
int dquant; ///< qscale difference to prev qscale
int closed_gop; ///< MPEG1/2 GOP is closed
int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
int last_pict_type; //FIXME removes
int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol