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Code Issues Releases Activity

use AVFrame.pts=AV_NOPTS_VALUE instead of AVFrame.pts=0

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move AV_NOPTS_VALUE & AV_TIME_BASE from avformat.h -> avcodec.h
related fixes

Originally committed as revision 2814 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-02-25 17:35:52 +00:00
parent 8ac5c1b2d3
commit 9740beffc6
6 changed files with 37 additions and 25 deletions
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9
ffmpeg.c
View File

@ -650,7 +650,7 @@ static void do_video_out(AVFormatContext *s,
} else {
AVFrame big_picture;
memset(&big_picture, 0, sizeof(AVFrame));
avcodec_get_frame_defaults(&big_picture);
*(AVPicture*)&big_picture= *final_picture;
/* better than nothing: use input picture interlaced
settings */
@ -851,7 +851,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
AVFrame picture;
short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
void *buffer_to_free;
if (pkt && pkt->pts != AV_NOPTS_VALUE) {
ist->pts = pkt->pts;
} else {
@ -896,7 +896,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
case CODEC_TYPE_VIDEO:
data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
/* XXX: allocate picture correctly */
memset(&picture, 0, sizeof(picture));
avcodec_get_frame_defaults(&picture);
ret = avcodec_decode_video(&ist->st->codec,
&picture, &got_picture, ptr, len);
ist->st->quality= picture.quality;
@ -1009,7 +1010,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
/* no reencoding needed : output the packet directly */
/* force the input stream PTS */
memset(&avframe, 0, sizeof(AVFrame));
avcodec_get_frame_defaults(&avframe);
ost->st->codec.coded_frame= &avframe;
avframe.key_frame = pkt->flags & PKT_FLAG_KEY;

9
libavcodec/avcodec.h
View File

@ -17,7 +17,7 @@ extern "C" {
#define FFMPEG_VERSION_INT 0x000408
#define FFMPEG_VERSION "0.4.8"
#define LIBAVCODEC_BUILD 4703
#define LIBAVCODEC_BUILD 4704
#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
#define LIBAVCODEC_VERSION FFMPEG_VERSION
@ -26,6 +26,9 @@ extern "C" {
#define AV_TOSTRING(s) #s
#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
#define AV_NOPTS_VALUE INT64_MIN
#define AV_TIME_BASE 1000000
enum CodecID {
CODEC_ID_NONE,
CODEC_ID_MPEG1VIDEO,
@ -372,8 +375,8 @@ typedef struct AVPanScan{
int pict_type;\
\
/**\
* presentation timestamp in micro seconds (time when frame should be shown to user)\
* if 0 then the frame_rate will be used as reference\
* presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
* if AV_NOPTS_VALUE then the frame_rate will be used as reference\
* - encoding: MUST be set by user\
* - decoding: set by lavc\
*/\

17
libavcodec/h263.c
View File

@ -2156,8 +2156,8 @@ void ff_mpeg4_stuffing(PutBitContext * pbc)
void ff_set_mpeg4_time(MpegEncContext * s, int picture_number){
int time_div, time_mod;
assert(s->current_picture_ptr->pts);
s->time= (s->current_picture_ptr->pts*s->time_increment_resolution + 500*1000)/(1000*1000);
assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
s->time= (s->current_picture_ptr->pts*s->time_increment_resolution + AV_TIME_BASE/2)/AV_TIME_BASE;
time_div= s->time/s->time_increment_resolution;
time_mod= s->time%s->time_increment_resolution;
@ -2179,11 +2179,10 @@ static void mpeg4_encode_gop_header(MpegEncContext * s){
put_bits(&s->pb, 16, 0);
put_bits(&s->pb, 16, GOP_STARTCODE);
if(s->current_picture_ptr->pts && s->reordered_input_picture[1]){
time= FFMIN(s->reordered_input_picture[1]->pts, s->current_picture_ptr->pts);
time= (time*s->time_increment_resolution + 500*1000)/(1000*1000);
}else
time= av_rescale(s->current_picture_ptr->coded_picture_number*(int64_t)s->avctx->frame_rate_base, s->time_increment_resolution, s->avctx->frame_rate);
time= s->current_picture_ptr->pts;
if(s->reordered_input_picture[1])
time= FFMIN(time, s->reordered_input_picture[1]->pts);
time= (time*s->time_increment_resolution + AV_TIME_BASE/2)/AV_TIME_BASE;
seconds= time/s->time_increment_resolution;
minutes= seconds/60; seconds %= 60;
@ -5709,9 +5708,9 @@ static int decode_vop_header(MpegEncContext *s, GetBitContext *gb){
- ROUNDED_DIV(s->last_non_b_time - s->pp_time, s->t_frame))*2;
}
s->current_picture_ptr->pts= s->time*1000LL*1000LL / s->time_increment_resolution;
s->current_picture_ptr->pts= s->time*(int64_t)AV_TIME_BASE / s->time_increment_resolution;
if(s->avctx->debug&FF_DEBUG_PTS)
av_log(s->avctx, AV_LOG_DEBUG, "MPEG4 PTS: %f\n", s->current_picture_ptr->pts/(1000.0*1000.0));
av_log(s->avctx, AV_LOG_DEBUG, "MPEG4 PTS: %f\n", s->current_picture_ptr->pts/(float)AV_TIME_BASE);
check_marker(gb, "before vop_coded");

8
libavcodec/mpegvideo.c
View File

@ -1850,14 +1850,14 @@ static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
copy_picture_attributes(pic, pic_arg);
pic->display_picture_number= s->input_picture_number++;
if(pic->pts){
if(pic->pts != AV_NOPTS_VALUE){
s->user_specified_pts= pic->pts;
}else{
if(s->user_specified_pts){
pic->pts= s->user_specified_pts + 1000ULL*1000ULL*s->avctx->frame_rate_base / s->avctx->frame_rate;
av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=0 trying to guess (%Ld)\n", pic->pts);
pic->pts= s->user_specified_pts + AV_TIME_BASE*(int64_t)s->avctx->frame_rate_base / s->avctx->frame_rate;
av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%Ld)\n", pic->pts);
}else{
pic->pts= av_rescale(pic->display_picture_number*(int64_t)s->avctx->frame_rate_base, 1000*1000, s->avctx->frame_rate);
pic->pts= av_rescale(pic->display_picture_number*(int64_t)s->avctx->frame_rate_base, AV_TIME_BASE, s->avctx->frame_rate);
}
}
}

16
libavcodec/utils.c
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@ -339,6 +339,8 @@ enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, enum Pixel
}
void avcodec_get_context_defaults(AVCodecContext *s){
memset(s, 0, sizeof(AVCodecContext));
s->bit_rate= 800*1000;
s->bit_rate_tolerance= s->bit_rate*10;
s->qmin= 2;
@ -381,7 +383,7 @@ void avcodec_get_context_defaults(AVCodecContext *s){
* this can be deallocated by simply calling free()
*/
AVCodecContext *avcodec_alloc_context(void){
AVCodecContext *avctx= av_mallocz(sizeof(AVCodecContext));
AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
if(avctx==NULL) return NULL;
@ -390,12 +392,22 @@ AVCodecContext *avcodec_alloc_context(void){
return avctx;
}
void avcodec_get_frame_defaults(AVFrame *pic){
memset(pic, 0, sizeof(AVFrame));
pic->pts= AV_NOPTS_VALUE;
}
/**
* allocates a AVPFrame and set it to defaults.
* this can be deallocated by simply calling free()
*/
AVFrame *avcodec_alloc_frame(void){
AVFrame *pic= av_mallocz(sizeof(AVFrame));
AVFrame *pic= av_malloc(sizeof(AVFrame));
if(pic==NULL) return NULL;
avcodec_get_frame_defaults(pic);
return pic;
}

3
libavformat/avformat.h
View File

@ -27,9 +27,6 @@ extern "C" {
#define MININT64 int64_t_C(0x8000000000000000)
#endif
#define AV_NOPTS_VALUE MININT64
#define AV_TIME_BASE 1000000
typedef struct AVPacket {
int64_t pts; /* presentation time stamp in AV_TIME_BASE units (or
pts_den units in muxers or demuxers) */