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fix endianness of time code, and calculate it in fields, according to specs

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Originally committed as revision 16730 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier
2009-01-23 20:03:57 +00:00
parent 76af2edc44
commit e9338da87d
2 changed files with 5 additions and 7 deletions
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10
libavformat/gxfenc.c
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@@ -361,13 +361,11 @@ static int gxf_write_flt_packet(ByteIOContext *pb, GXFContext *ctx)
static int gxf_write_umf_material_description(ByteIOContext *pb, GXFContext *ctx)
{
// XXX drop frame
int fps = ctx->sample_rate / 2;
int frames = ctx->nb_frames / 2;
uint32_t timecode =
frames % fps << 24 | // frames
frames / fps % 60 << 16 | // seconds
frames / fps * 60 % 60 << 8 | // minutes
frames / fps * 3600 % 24 << 3; // hours
ctx->nb_frames / ctx->sample_rate * 3600 % 24 << 27 | // hours
ctx->nb_frames / ctx->sample_rate * 60 % 60 << 16 | // minutes
ctx->nb_frames / ctx->sample_rate % 60 << 8 | // seconds
ctx->nb_frames % ctx->sample_rate; // fields
put_le32(pb, ctx->flags);
put_le32(pb, ctx->nb_frames); /* length of the longest track */