static int vc1test_write_header(AVFormatContext *s)
{
AVCodecContext *avc = s->streams[0]->codec;
AVIOContext *pb = s->pb;
if (avc->codec_id != CODEC_ID_WMV3) {
av_log(s, AV_LOG_ERROR, "Only WMV3 is accepted!\n");
return -1;
}
avio_wl24(pb, 0); //frames count will be here
avio_w8(pb, 0xC5);
avio_wl32(pb, 4);
avio_write(pb, avc->extradata, 4);
avio_wl32(pb, avc->height);
avio_wl32(pb, avc->width);
avio_wl32(pb, 0xC);
avio_wl24(pb, 0); // hrd_buffer
avio_w8(pb, 0x80); // level|cbr|res1
avio_wl32(pb, 0); // hrd_rate
if (s->streams[0]->r_frame_rate.den && s->streams[0]->r_frame_rate.num == 1)
avio_wl32(pb, s->streams[0]->r_frame_rate.den);
else
avio_wl32(pb, 0xFFFFFFFF); //variable framerate
avpriv_set_pts_info(s->streams[0], 32, 1, 1000);
return 0;
}
static int vc1test_write_trailer(AVFormatContext *s)
{
RCVContext *ctx = s->priv_data;
AVIOContext *pb = s->pb;
if (s->pb->seekable) {
avio_seek(pb, 0, SEEK_SET);
avio_wl24(pb, ctx->frames);
avio_flush(pb);
}
return 0;
}
static int vc1test_write_trailer(AVFormatContext *s)
{
RCVContext *ctx = s->priv_data;
AVIOContext *pb = s->pb;
if (!url_is_streamed(s->pb)) {
avio_seek(pb, 0, SEEK_SET);
avio_wl24(pb, ctx->frames);
put_flush_packet(pb);
}
return 0;
}
static int voc_write_packet(AVFormatContext *s, AVPacket *pkt)
{
VocEncContext *voc = s->priv_data;
AVCodecContext *enc = s->streams[0]->codec;
AVIOContext *pb = s->pb;
if (!voc->param_written) {
if (enc->codec_tag > 3) {
avio_w8(pb, VOC_TYPE_NEW_VOICE_DATA);
avio_wl24(pb, pkt->size + 12);
avio_wl32(pb, enc->sample_rate);
avio_w8(pb, enc->bits_per_coded_sample);
avio_w8(pb, enc->channels);
avio_wl16(pb, enc->codec_tag);
avio_wl32(pb, 0);
} else {
if (s->streams[0]->codec->channels > 1) {
avio_w8(pb, VOC_TYPE_EXTENDED);
avio_wl24(pb, 4);
avio_wl16(pb, 65536-(256000000 + enc->sample_rate*enc->channels/2)/(enc->sample_rate*enc->channels));
avio_w8(pb, enc->codec_tag);
avio_w8(pb, enc->channels - 1);
}
avio_w8(pb, VOC_TYPE_VOICE_DATA);
avio_wl24(pb, pkt->size + 2);
avio_w8(pb, 256 - (1000000 + enc->sample_rate/2) / enc->sample_rate);
avio_w8(pb, enc->codec_tag);
}
voc->param_written = 1;
} else {
avio_w8(pb, VOC_TYPE_VOICE_DATA_CONT);
avio_wl24(pb, pkt->size);
}
avio_write(pb, pkt->data, pkt->size);
return 0;
}
