From 02734c6a3eff370de9f5eafb37944348b5d4ce1c Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 16 May 2002 22:01:30 +0000 Subject: [PATCH] print frame decoding time support (x86 only) Originally committed as revision 504 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/h263dec.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c index b18753b..ac882a0 100644 --- a/libavcodec/h263dec.c +++ b/libavcodec/h263dec.c @@ -24,6 +24,18 @@ #include "mpegvideo.h" //#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) { @@ -103,7 +115,9 @@ static int h263_decode_frame(AVCodecContext *avctx, MpegEncContext *s = avctx->priv_data; int ret; AVPicture *pict = data; - +#ifdef PRINT_FRAME_TIME +uint64_t time= rdtsc(); +#endif #ifdef DEBUG 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]); @@ -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) */ if(s->num_available_buffers>=2 || (!s->has_b_frames)) *data_size = sizeof(AVPicture); - +#ifdef PRINT_FRAME_TIME +printf("%Ld\n", rdtsc()-time); +#endif return buf_size; } -- 2.7.4