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set frame rate information, for good measure

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Originally committed as revision 2521 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Mike Melanson 2003-11-16 14:26:50 +00:00
parent d66dae57e8
commit 11498da334
1 changed files with 6 additions and 3 deletions
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9
libavformat/4xm.c
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@ -86,6 +86,7 @@ typedef struct FourxmDemuxContext {
int64_t audio_pts;
int64_t video_pts;
int video_pts_inc;
float fps;
} FourxmDemuxContext;
static float get_le_float(unsigned char *buffer)
@ -132,11 +133,11 @@ static int fourxm_read_header(AVFormatContext *s,
int i;
int current_track = -1;
AVStream *st;
float fps;
fourxm->track_count = 0;
fourxm->tracks = NULL;
fourxm->selected_track = 0;
fourxm->fps = 1.0;
/* skip the first 3 32-bit numbers */
url_fseek(pb, 12, SEEK_CUR);
@ -160,8 +161,8 @@ static int fourxm_read_header(AVFormatContext *s,
size = LE_32(&header[i + 4]);
if (fourcc_tag == std__TAG) {
fps = get_le_float(&header[i + 12]);
fourxm->video_pts_inc = (int)(90000.0 / fps);
fourxm->fps = get_le_float(&header[i + 12]);
fourxm->video_pts_inc = (int)(90000.0 / fourxm->fps);
} else if (fourcc_tag == vtrk_TAG) {
/* check that there is enough data */
if (size != vtrk_SIZE) {
@ -179,6 +180,8 @@ static int fourxm_read_header(AVFormatContext *s,
fourxm->video_stream_index = st->index;
st->codec.frame_rate = fourxm->fps;
st->codec.frame_rate_base = 1.0;
st->codec.codec_type = CODEC_TYPE_VIDEO;
st->codec.codec_id = CODEC_ID_4XM;
st->codec.codec_tag = 0; /* no fourcc */