static int gxf_write_media_preamble(ByteIOContext *pb, GXFContext *ctx, AVPacket *pkt, int size)
{
GXFStreamContext *sc = &ctx->streams[pkt->stream_index];
int64_t dts = av_rescale_rnd(pkt->dts, ctx->sample_rate, sc->codec->time_base.den, AV_ROUND_UP);
put_byte(pb, sc->media_type);
put_byte(pb, sc->index);
put_be32(pb, dts);
if (sc->codec->codec_type == CODEC_TYPE_AUDIO) {
put_be16(pb, 0);
put_be16(pb, size / 2);
} else if (sc->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
int frame_type = gxf_parse_mpeg_frame(sc, pkt->data, pkt->size);
if (frame_type == FF_I_TYPE) {
put_byte(pb, 0x0d);
sc->iframes++;
} else if (frame_type == FF_B_TYPE) {
put_byte(pb, 0x0f);
sc->bframes++;
} else {
put_byte(pb, 0x0e);
sc->pframes++;
}
put_be24(pb, size);
} else if (sc->codec->codec_id == CODEC_ID_DVVIDEO) {
put_byte(pb, size / 4096);
put_be24(pb, 0);
} else
put_be32(pb, size);
put_be32(pb, dts);
put_byte(pb, 1); /* flags */
put_byte(pb, 0); /* reserved */
return 16;
}
static int gxf_write_media_preamble(AVFormatContext *s, AVPacket *pkt, int size)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st = s->streams[pkt->stream_index];
GXFStreamContext *sc = st->priv_data;
unsigned field_nb;
/* If the video is frame-encoded, the frame numbers shall be represented by
* even field numbers.
* see SMPTE360M-2004 6.4.2.1.3 Media field number */
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
{
field_nb = gxf->nb_fields;
}
else
{
field_nb = av_rescale_rnd(pkt->dts, gxf->time_base.den,
(int64_t)48000 * gxf->time_base.num, AV_ROUND_UP);
}
avio_w8(pb, sc->media_type);
avio_w8(pb, st->index);
avio_wb32(pb, field_nb);
if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
{
avio_wb16(pb, 0);
avio_wb16(pb, size / 2);
}
else if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO)
{
int frame_type = gxf_parse_mpeg_frame(sc, pkt->data, pkt->size);
if (frame_type == FF_I_TYPE)
{
avio_w8(pb, 0x0d);
sc->iframes++;
}
else if (frame_type == FF_B_TYPE)
{
avio_w8(pb, 0x0f);
sc->bframes++;
}
else
{
avio_w8(pb, 0x0e);
sc->pframes++;
}
avio_wb24(pb, size);
}
else if (st->codec->codec_id == CODEC_ID_DVVIDEO)
{
avio_w8(pb, size / 4096);
avio_wb24(pb, 0);
}
else
avio_wb32(pb, size);
avio_wb32(pb, field_nb);
avio_w8(pb, 1); /* flags */
avio_w8(pb, 0); /* reserved */
return 16;
}
static int gxf_write_media_preamble(ByteIOContext *pb, GXFContext *ctx, AVPacket *pkt, int size)
{
GXFStreamContext *sc = ctx->fc->streams[pkt->stream_index]->priv_data;
unsigned field_nb;
/* If the video is frame-encoded, the frame numbers shall be represented by
* even field numbers.
* see SMPTE360M-2004 6.4.2.1.3 Media field number */
if (sc->codec->codec_type == CODEC_TYPE_VIDEO) {
field_nb = ctx->nb_fields;
} else {
field_nb = av_rescale_rnd(pkt->dts, ctx->sample_rate, sc->codec->time_base.den, AV_ROUND_UP);
}
put_byte(pb, sc->media_type);
put_byte(pb, sc->index);
put_be32(pb, field_nb);
if (sc->codec->codec_type == CODEC_TYPE_AUDIO) {
put_be16(pb, 0);
put_be16(pb, size / 2);
} else if (sc->codec->codec_id == CODEC_ID_MPEG2VIDEO) {
int frame_type = gxf_parse_mpeg_frame(sc, pkt->data, pkt->size);
if (frame_type == FF_I_TYPE) {
put_byte(pb, 0x0d);
sc->iframes++;
} else if (frame_type == FF_B_TYPE) {
put_byte(pb, 0x0f);
sc->bframes++;
} else {
put_byte(pb, 0x0e);
sc->pframes++;
}
put_be24(pb, size);
} else if (sc->codec->codec_id == CODEC_ID_DVVIDEO) {
put_byte(pb, size / 4096);
put_be24(pb, 0);
} else
put_be32(pb, size);
put_be32(pb, field_nb);
put_byte(pb, 1); /* flags */
put_byte(pb, 0); /* reserved */
return 16;
}
