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Code Issues Releases Activity

print frame decoding time support (x86 only)

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Originally committed as revision 504 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-05-16 22:01:30 +00:00
parent 83286d2a75
commit 02734c6a3e
1 changed files with 18 additions and 2 deletions

20
libavcodec/h263dec.c

@ -24,6 +24,18 @@
#include "mpegvideo.h" #include "mpegvideo.h"
//#define DEBUG //#define DEBUG
//#define PRINT_FRAME_TIME
#ifdef PRINT_FRAME_TIME
static inline long long rdtsc()
{
long long l;
asm volatile( "rdtsc\n\t"
: "=A" (l)
);
// printf("%d\n", int(l/1000));
return l;
}
#endif
static int h263_decode_init(AVCodecContext *avctx) static int h263_decode_init(AVCodecContext *avctx)
{ {
@ -103,7 +115,9 @@ static int h263_decode_frame(AVCodecContext *avctx,
MpegEncContext *s = avctx->priv_data; MpegEncContext *s = avctx->priv_data;
int ret; int ret;
AVPicture *pict = data; AVPicture *pict = data;
#ifdef PRINT_FRAME_TIME
uint64_t time= rdtsc();
#endif
#ifdef DEBUG #ifdef DEBUG
printf("*****frame %d size=%d\n", avctx->frame_number, buf_size); printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
printf("bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]); printf("bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);
@ -317,7 +331,9 @@ static int h263_decode_frame(AVCodecContext *avctx,
note we allready added +1 for the current pix in MPV_frame_end(s) */ note we allready added +1 for the current pix in MPV_frame_end(s) */
if(s->num_available_buffers>=2 || (!s->has_b_frames)) if(s->num_available_buffers>=2 || (!s->has_b_frames))
*data_size = sizeof(AVPicture); *data_size = sizeof(AVPicture);
#ifdef PRINT_FRAME_TIME
printf("%Ld\n", rdtsc()-time);
#endif
return buf_size; return buf_size;
} }