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authorMichael Niedermayer <michaelni@gmx.at>2004-01-22 19:48:28 +0000
committerMichael Niedermayer <michaelni@gmx.at>2004-01-22 19:48:28 +0000
commit303e50e65b8b9dc66ef9929a5a638a16378da64c (patch)
tree1c4844019a66159a182fa2b059d008deda908c59 /libavcodec/mpegvideo.c
parentd398a27e0b98f2d575d4e69ce4974768dff9f7d8 (diff)
downloadffmpeg-303e50e65b8b9dc66ef9929a5a638a16378da64c.tar.gz
closed gop support & flags2 as all bits in flags are used
and a few minor things i forgot to commit ... Originally committed as revision 2718 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegvideo.c')
-rw-r--r--libavcodec/mpegvideo.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 3f21349385..ec29e4d8bf 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -408,6 +408,7 @@ int MPV_common_init(MpegEncContext *s)
DCT_common_init(s);
s->flags= s->avctx->flags;
+ s->flags2= s->avctx->flags2;
s->mb_width = (s->width + 15) / 16;
s->mb_height = (s->height + 15) / 16;
@@ -700,6 +701,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->gop_size = avctx->gop_size;
s->avctx = avctx;
s->flags= avctx->flags;
+ s->flags2= avctx->flags2;
s->max_b_frames= avctx->max_b_frames;
s->codec_id= avctx->codec->id;
s->luma_elim_threshold = avctx->luma_elim_threshold;
@@ -789,6 +791,11 @@ int MPV_encode_init(AVCodecContext *avctx)
return -1;
}
+ if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
+ av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet\n");
+ return -1;
+ }
+
if(s->codec_id==CODEC_ID_MJPEG){
s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
s->inter_quant_bias= 0;
@@ -1809,12 +1816,19 @@ static void select_input_picture(MpegEncContext *s){
//static int b_count=0;
//b_count+= b_frames;
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
-
+ if(s->picture_in_gop_number + b_frames >= s->gop_size){
+ if(s->flags & CODEC_FLAG_CLOSED_GOP)
+ b_frames=0;
+ s->input_picture[b_frames]->pict_type= I_TYPE;
+ }
+
+ if( (s->flags & CODEC_FLAG_CLOSED_GOP)
+ && b_frames
+ && s->input_picture[b_frames]->pict_type== I_TYPE)
+ b_frames--;
+
s->reordered_input_picture[0]= s->input_picture[b_frames];
- if( s->picture_in_gop_number + b_frames >= s->gop_size
- || s->reordered_input_picture[0]->pict_type== I_TYPE)
- s->reordered_input_picture[0]->pict_type= I_TYPE;
- else
+ if(s->reordered_input_picture[0]->pict_type != I_TYPE)
s->reordered_input_picture[0]->pict_type= P_TYPE;
s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
for(i=0; i<b_frames; i++){