static int gxf_write_track_description(AVFormatContext *s, GXFStreamContext *sc, int index)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
int64_t pos;
/* track description section */
avio_w8(pb, sc->media_type + 0x80);
avio_w8(pb, index + 0xC0);
pos = avio_tell(pb);
avio_wb16(pb, 0); /* size */
/* media file name */
avio_w8(pb, TRACK_NAME);
avio_w8(pb, strlen(ES_NAME_PATTERN) + 3);
avio_write(pb, ES_NAME_PATTERN, sizeof(ES_NAME_PATTERN) - 1);
avio_wb16(pb, sc->media_info);
avio_w8(pb, 0);
switch (sc->track_type) {
case 3: /* timecode */
gxf_write_timecode_auxiliary(pb, gxf);
break;
case 4: /* MPEG2 */
case 9: /* MPEG1 */
gxf_write_mpeg_auxiliary(pb, s->streams[index]);
break;
case 5: /* DV25 */
case 6: /* DV50 */
gxf_write_dv_auxiliary(pb, s->streams[index]);
break;
default:
avio_w8(pb, TRACK_AUX);
avio_w8(pb, 8);
avio_wl64(pb, 0);
}
/* file system version */
avio_w8(pb, TRACK_VER);
avio_w8(pb, 4);
avio_wb32(pb, 0);
/* frame rate */
avio_w8(pb, TRACK_FPS);
avio_w8(pb, 4);
avio_wb32(pb, sc->frame_rate_index);
/* lines per frame */
avio_w8(pb, TRACK_LINES);
avio_w8(pb, 4);
avio_wb32(pb, sc->lines_index);
/* fields per frame */
avio_w8(pb, TRACK_FPF);
avio_w8(pb, 4);
avio_wb32(pb, sc->fields);
return updateSize(pb, pos);
}
static int gxf_write_track_description(AVFormatContext *s, GXFStreamContext *sc, int index)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
int64_t pos;
int mpeg = sc->track_type == 4 || sc->track_type == 9;
/* track description section */
avio_w8(pb, sc->media_type + 0x80);
avio_w8(pb, index + 0xC0);
pos = avio_tell(pb);
avio_wb16(pb, 0); /* size */
/* media file name */
avio_w8(pb, TRACK_NAME);
avio_w8(pb, strlen(ES_NAME_PATTERN) + 3);
avio_write(pb, ES_NAME_PATTERN, sizeof(ES_NAME_PATTERN) - 1);
avio_wb16(pb, sc->media_info);
avio_w8(pb, 0);
if (!mpeg) {
/* auxiliary information */
avio_w8(pb, TRACK_AUX);
avio_w8(pb, 8);
if (sc->track_type == 3)
gxf_write_timecode_auxiliary(pb, gxf);
else
avio_wl64(pb, 0);
}
/* file system version */
avio_w8(pb, TRACK_VER);
avio_w8(pb, 4);
avio_wb32(pb, 0);
if (mpeg)
gxf_write_mpeg_auxiliary(pb, s->streams[index]);
/* frame rate */
avio_w8(pb, TRACK_FPS);
avio_w8(pb, 4);
avio_wb32(pb, sc->frame_rate_index);
/* lines per frame */
avio_w8(pb, TRACK_LINES);
avio_w8(pb, 4);
avio_wb32(pb, sc->lines_index);
/* fields per frame */
avio_w8(pb, TRACK_FPF);
avio_w8(pb, 4);
avio_wb32(pb, sc->fields);
return updateSize(pb, pos);
}
static int gxf_write_track_description(ByteIOContext *pb, GXFStreamContext *stream)
{
int64_t pos;
/* track description section */
put_byte(pb, stream->media_type + 0x80);
put_byte(pb, stream->index + 0xC0);
pos = url_ftell(pb);
put_be16(pb, 0); /* size */
/* media file name */
put_byte(pb, TRACK_NAME);
put_byte(pb, strlen(ES_NAME_PATTERN) + 3);
put_tag(pb, ES_NAME_PATTERN);
put_be16(pb, stream->media_info);
put_byte(pb, 0);
if (stream->codec->codec_id != CODEC_ID_MPEG2VIDEO) {
/* auxiliary information */
put_byte(pb, TRACK_AUX);
put_byte(pb, 8);
if (stream->codec->codec_id == CODEC_ID_NONE)
gxf_write_timecode_auxiliary(pb, stream);
else
put_le64(pb, 0);
}
/* file system version */
put_byte(pb, TRACK_VER);
put_byte(pb, 4);
put_be32(pb, 0);
if (stream->codec->codec_id == CODEC_ID_MPEG2VIDEO)
gxf_write_mpeg_auxiliary(pb, stream);
/* frame rate */
put_byte(pb, TRACK_FPS);
put_byte(pb, 4);
put_be32(pb, stream->frame_rate_index);
/* lines per frame */
put_byte(pb, TRACK_LINES);
put_byte(pb, 4);
put_be32(pb, stream->lines_index);
/* fields per frame */
put_byte(pb, TRACK_FPF);
put_byte(pb, 4);
put_be32(pb, stream->fields);
return updateSize(pb, pos);
}
