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nonsense removial

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Originally committed as revision 3400 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-08-18 11:22:15 +00:00
parent 0c9fc6e187
commit 14a68b8910
1 changed files with 4 additions and 55 deletions
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59
libavformat/swf.c
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@ -53,12 +53,8 @@
#define VIDEO_ID 0
#define SHAPE_ID 1
typedef struct SWFFrame_s {
void *data;
int size;
struct SWFFrame_s *prev;
struct SWFFrame_s *next;
} SWFFrame;
#undef NDEBUG
#include <assert.h>
typedef struct {
@ -68,7 +64,6 @@ typedef struct {
int samples_per_frame;
int sound_samples;
int video_samples;
int skip_samples;
int swf_frame_number;
int video_frame_number;
int ms_per_frame;
@ -82,9 +77,6 @@ typedef struct {
int video_type;
int audio_type;
SWFFrame *frame_head;
SWFFrame *frame_tail;
} SWFContext;
static const int sSampleRates[3][4] = {
@ -323,13 +315,10 @@ static int swf_write_header(AVFormatContext *s)
swf->audio_out_pos = 0;
swf->audio_size = 0;
swf->audio_fifo = av_malloc(AUDIO_FIFO_SIZE);
swf->frame_head = 0;
swf->frame_tail = 0;
swf->sound_samples = 0;
swf->video_samples = 0;
swf->swf_frame_number = 0;
swf->video_frame_number = 0;
swf->skip_samples = 0;
video_enc = NULL;
audio_enc = NULL;
@ -482,20 +471,6 @@ static int swf_write_video(AVFormatContext *s,
av_log(enc, AV_LOG_INFO, "warning: Flash Player limit of 16000 frames reached\n");
}
/* Store video data in queue */
if ( enc->codec_type == CODEC_TYPE_VIDEO ) {
SWFFrame *new_frame = av_malloc(sizeof(SWFFrame));
new_frame->prev = 0;
new_frame->next = swf->frame_head;
new_frame->data = av_malloc(size);
new_frame->size = size;
memcpy(new_frame->data,buf,size);
swf->frame_head = new_frame;
if ( swf->frame_tail == 0 ) {
swf->frame_tail = new_frame;
}
}
if ( swf->audio_type ) {
/* Prescan audio data for this swf frame */
retry_swf_audio_packet:
@ -534,18 +509,8 @@ retry_swf_audio_packet:
if ( ( swf->sound_samples + outSamples + swf->samples_per_frame ) < swf->video_samples ) {
return 0;
}
/* compute audio/video drift */
if ( enc->codec_type == CODEC_TYPE_VIDEO ) {
swf->skip_samples = (int)( ( (double)(swf->swf_frame_number) * (double)enc->frame_rate_base * 44100. ) / (double)(enc->frame_rate) );
swf->skip_samples -= swf->video_samples;
}
}
/* check if we need to insert a padding frame */
if (swf->skip_samples <= ( swf->samples_per_frame / 2 ) ) {
/* no, it is time for a real frame, check if one is available */
if ( swf->frame_tail ) {
if ( swf->video_type == CODEC_ID_FLV1 ) {
if ( swf->video_frame_number == 0 ) {
/* create a new video object */
@ -581,16 +546,12 @@ retry_swf_audio_packet:
put_swf_end_tag(s);
}
// write out pending frames
for (; ( enc->frame_number - swf->video_frame_number ) > 0;) {
/* set video frame data */
put_swf_tag(s, TAG_VIDEOFRAME | TAG_LONG);
put_le16(pb, VIDEO_ID);
put_le16(pb, swf->video_frame_number++ );
put_buffer(pb, swf->frame_tail->data, swf->frame_tail->size);
put_buffer(pb, buf, size);
put_swf_end_tag(s);
}
} else if ( swf->video_type == CODEC_ID_MJPEG ) {
if (swf->swf_frame_number > 0) {
/* remove the shape */
@ -615,7 +576,7 @@ retry_swf_audio_packet:
put_byte(pb, 0xff);
put_byte(pb, 0xd9);
/* write the jpeg image */
put_buffer(pb, swf->frame_tail->data, swf->frame_tail->size);
put_buffer(pb, buf, size);
put_swf_end_tag(s);
@ -630,19 +591,7 @@ retry_swf_audio_packet:
/* invalid codec */
}
av_free(swf->frame_tail->data);
swf->frame_tail = swf->frame_tail->prev;
if ( swf->frame_tail ) {
if ( swf->frame_tail->next ) {
av_free(swf->frame_tail->next);
}
swf->frame_tail->next = 0;
} else {
swf->frame_head = 0;
}
swf->swf_frame_number ++;
}
}
swf->video_samples += swf->samples_per_frame;