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* Made encoding to ASF streams work again. It turns out that the default

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stream id that AVI wants for MSMPEG4V3 doesn't work for ASF. I have
  added a flag to indicate that certain tags should not be used in ASF
  streams. I think that this is the wrong solution (just adding a flag
  for ASF), but it does work.

Originally committed as revision 1112 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Philip Gladstone 2002-10-30 03:02:00 +00:00
parent d6562d2cfa
commit 2727c35ed7
3 changed files with 23 additions and 12 deletions
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2
libav/asf.c
View File

@ -392,7 +392,7 @@ static int asf_write_header1(AVFormatContext *s, INT64 file_size, INT64 data_chu
put_le16(pb, 40); /* size */
/* BITMAPINFOHEADER header */
put_bmp_header(pb, enc, codec_bmp_tags);
put_bmp_header(pb, enc, codec_bmp_tags, 1);
}
end_header(pb, hpos);
}

3
libav/avi.h
View File

@ -12,9 +12,10 @@ void end_tag(ByteIOContext *pb, offset_t start);
typedef struct CodecTag {
int id;
unsigned int tag;
unsigned int invalid_asf : 1;
} CodecTag;
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, CodecTag *tags);
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, CodecTag *tags, int for_asf);
int put_wav_header(ByteIOContext *pb, AVCodecContext *enc);
int wav_codec_get_id(unsigned int tag, int bps);
void get_wav_header(ByteIOContext *pb, AVCodecContext *codec,

30
libav/avienc.c
View File

@ -60,17 +60,17 @@ CodecTag codec_bmp_tags[] = {
{ CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
{ CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
{ CODEC_ID_MPEG4, MKTAG('d', 'i', 'v', 'x') },
{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
{ CODEC_ID_MPEG4, MKTAG('x', 'v', 'i', 'd') },
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 's') },
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), invalid_asf: 1 },
{ CODEC_ID_MPEG4, MKTAG('d', 'i', 'v', 'x'), invalid_asf: 1},
{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), invalid_asf: 1 },
{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), invalid_asf: 1 },
{ CODEC_ID_MPEG4, MKTAG('x', 'v', 'i', 'd'), invalid_asf: 1 },
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 's'), invalid_asf: 1 },
{ CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
{ CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
{ CODEC_ID_MPEG4, MKTAG('m', '4', 's', '2') },
{ CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, /* default signature when using MSMPEG4 */
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), invalid_asf: 1 }, /* default signature when using MSMPEG4 */
{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
{ CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
@ -96,6 +96,16 @@ unsigned int codec_get_tag(const CodecTag *tags, int id)
return 0;
}
static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
{
while (tags->id != 0) {
if (!tags->invalid_asf && tags->id == id)
return tags->tag;
tags++;
}
return 0;
}
int codec_get_id(const CodecTag *tags, unsigned int tag)
{
while (tags->id != 0) {
@ -112,7 +122,7 @@ unsigned int codec_get_bmp_tag(int id)
}
/* BITMAPINFOHEADER header */
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, CodecTag *tags)
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, CodecTag *tags, int for_asf)
{
put_le32(pb, 40); /* size */
put_le32(pb, enc->width);
@ -120,7 +130,7 @@ void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, CodecTag *tags)
put_le16(pb, 1); /* planes */
put_le16(pb, 24); /* depth */
/* compression type */
put_le32(pb, codec_get_tag(tags, enc->codec_id));
put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : codec_get_tag(tags, enc->codec_id));
put_le32(pb, enc->width * enc->height * 3);
put_le32(pb, 0);
put_le32(pb, 0);
@ -265,7 +275,7 @@ static int avi_write_header(AVFormatContext *s)
strf = start_tag(pb, "strf");
switch(stream->codec_type) {
case CODEC_TYPE_VIDEO:
put_bmp_header(pb, stream, codec_bmp_tags);
put_bmp_header(pb, stream, codec_bmp_tags, 0);
break;
case CODEC_TYPE_AUDIO:
if (put_wav_header(pb, stream) < 0) {