static int gxf_write_umf_media_mpeg(AVIOContext *pb, AVStream *st)
{
GXFStreamContext *sc = st->priv_data;
if (st->codec->pix_fmt == PIX_FMT_YUV422P)
avio_wl32(pb, 2);
else
avio_wl32(pb, 1); /* default to 420 */
avio_wl32(pb, sc->first_gop_closed == 1); /* closed = 1, open = 0, unknown = 255 */
avio_wl32(pb, 3); /* top = 1, bottom = 2, frame = 3, unknown = 0 */
avio_wl32(pb, 1); /* I picture per GOP */
avio_wl32(pb, sc->p_per_gop);
avio_wl32(pb, sc->b_per_i_or_p);
if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO)
avio_wl32(pb, 2);
else if (st->codec->codec_id == CODEC_ID_MPEG1VIDEO)
avio_wl32(pb, 1);
else
avio_wl32(pb, 0);
avio_wl32(pb, 0); /* reserved */
return 32;
}
static int gxf_write_umf_media_description(AVFormatContext *s)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
int64_t pos;
int i, j;
pos = url_ftell(pb);
gxf->umf_media_offset = pos - gxf->umf_start_offset;
for (i = 0; i <= s->nb_streams; ++i) {
GXFStreamContext *sc;
int64_t startpos, curpos;
if (i == s->nb_streams)
sc = &gxf->timecode_track;
else
sc = s->streams[i]->priv_data;
startpos = url_ftell(pb);
avio_wl16(pb, 0); /* length */
avio_wl16(pb, sc->media_info);
avio_wl16(pb, 0); /* reserved */
avio_wl16(pb, 0); /* reserved */
avio_wl32(pb, gxf->nb_fields);
avio_wl32(pb, 0); /* attributes rw, ro */
avio_wl32(pb, 0); /* mark in */
avio_wl32(pb, gxf->nb_fields); /* mark out */
avio_write(pb, ES_NAME_PATTERN, strlen(ES_NAME_PATTERN));
avio_wb16(pb, sc->media_info);
for (j = strlen(ES_NAME_PATTERN)+2; j < 88; j++)
avio_w8(pb, 0);
avio_wl32(pb, sc->track_type);
avio_wl32(pb, sc->sample_rate);
avio_wl32(pb, sc->sample_size);
avio_wl32(pb, 0); /* reserved */
if (sc == &gxf->timecode_track)
gxf_write_umf_media_timecode(pb, sc); /* 8 0bytes */
else {
AVStream *st = s->streams[i];
switch (st->codec->codec_id) {
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
gxf_write_umf_media_mpeg(pb, st);
break;
case CODEC_ID_PCM_S16LE:
gxf_write_umf_media_audio(pb, sc);
break;
case CODEC_ID_DVVIDEO:
gxf_write_umf_media_dv(pb, sc);
break;
}
}
curpos = url_ftell(pb);
avio_seek(pb, startpos, SEEK_SET);
avio_wl16(pb, curpos - startpos);
avio_seek(pb, curpos, SEEK_SET);
}
return url_ftell(pb) - pos;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
unsigned char tag[5];
unsigned int flags=0;
const int stream_index= pkt->stream_index;
AVIStream *avist= s->streams[stream_index]->priv_data;
AVCodecContext *enc= s->streams[stream_index]->codec;
int size= pkt->size;
// av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avist->packet_count){
AVPacket empty_packet;
av_init_packet(&empty_packet);
empty_packet.size= 0;
empty_packet.data= NULL;
empty_packet.stream_index= stream_index;
avi_write_packet(s, &empty_packet);
// av_log(s, AV_LOG_DEBUG, "dup %"PRId64" %d\n", pkt->dts, avi->packet_count[stream_index]);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (!url_is_streamed(pb) &&
(url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if(pkt->flags&AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avist->audio_strm_length += size;
}
if (!url_is_streamed(s->pb)) {
AVIIndex* idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
if (!idx->cluster)
return -1;
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
if (!idx->cluster[cl])
return -1;
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
put_flush_packet(pb);
return 0;
}
static int gxf_write_umf_payload(AVFormatContext *s)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
avio_wl32(pb, gxf->umf_length); /* total length of the umf data */
avio_wl32(pb, 3); /* version */
avio_wl32(pb, s->nb_streams+1);
avio_wl32(pb, gxf->umf_track_offset); /* umf track section offset */
avio_wl32(pb, gxf->umf_track_size);
avio_wl32(pb, s->nb_streams+1);
avio_wl32(pb, gxf->umf_media_offset);
avio_wl32(pb, gxf->umf_media_size);
avio_wl32(pb, gxf->umf_length); /* user data offset */
avio_wl32(pb, 0); /* user data size */
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
return 48;
}
int64_t ff_start_tag(AVIOContext *pb, const char *tag)
{
ffio_wfourcc(pb, tag);
avio_wl32(pb, 0);
return avio_tell(pb);
}
static int avi_write_header(AVFormatContext *s)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
AVCodecContext *stream, *video_enc;
int64_t list1, list2, strh, strf;
AVDictionaryEntry *t = NULL;
if (s->nb_streams > AVI_MAX_STREAM_COUNT) {
av_log(s, AV_LOG_ERROR, "AVI does not support >%d streams\n",
AVI_MAX_STREAM_COUNT);
return AVERROR(EINVAL);
}
for(n=0;n<s->nb_streams;n++) {
s->streams[n]->priv_data= av_mallocz(sizeof(AVIStream));
if(!s->streams[n]->priv_data)
return AVERROR(ENOMEM);
}
/* header list */
avi->riff_id = 0;
list1 = avi_start_new_riff(s, pb, "AVI ", "hdrl");
/* avi header */
ffio_wfourcc(pb, "avih");
avio_wl32(pb, 14 * 4);
bitrate = 0;
video_enc = NULL;
for(n=0;n<s->nb_streams;n++) {
stream = s->streams[n]->codec;
bitrate += stream->bit_rate;
if (stream->codec_type == AVMEDIA_TYPE_VIDEO)
video_enc = stream;
}
nb_frames = 0;
if(video_enc){
avio_wl32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
} else {
avio_wl32(pb, 0);
}
avio_wl32(pb, bitrate / 8); /* XXX: not quite exact */
avio_wl32(pb, 0); /* padding */
if (!pb->seekable)
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
else
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
avi->frames_hdr_all = avio_tell(pb); /* remember this offset to fill later */
avio_wl32(pb, nb_frames); /* nb frames, filled later */
avio_wl32(pb, 0); /* initial frame */
avio_wl32(pb, s->nb_streams); /* nb streams */
avio_wl32(pb, 1024 * 1024); /* suggested buffer size */
if(video_enc){
avio_wl32(pb, video_enc->width);
avio_wl32(pb, video_enc->height);
} else {
avio_wl32(pb, 0);
avio_wl32(pb, 0);
}
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
/* stream list */
for(i=0;i<n;i++) {
AVIStream *avist= s->streams[i]->priv_data;
list2 = ff_start_tag(pb, "LIST");
ffio_wfourcc(pb, "strl");
stream = s->streams[i]->codec;
/* stream generic header */
strh = ff_start_tag(pb, "strh");
switch(stream->codec_type) {
case AVMEDIA_TYPE_SUBTITLE:
// XSUB subtitles behave like video tracks, other subtitles
// are not (yet) supported.
if (stream->codec_id != AV_CODEC_ID_XSUB) {
av_log(s, AV_LOG_ERROR, "Subtitle streams other than DivX XSUB are not supported by the AVI muxer.\n");
return AVERROR_PATCHWELCOME;
}
case AVMEDIA_TYPE_VIDEO: ffio_wfourcc(pb, "vids"); break;
case AVMEDIA_TYPE_AUDIO: ffio_wfourcc(pb, "auds"); break;
// case AVMEDIA_TYPE_TEXT : ffio_wfourcc(pb, "txts"); break;
case AVMEDIA_TYPE_DATA : ffio_wfourcc(pb, "dats"); break;
}
if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
stream->codec_id == AV_CODEC_ID_XSUB)
avio_wl32(pb, stream->codec_tag);
else
avio_wl32(pb, 1);
avio_wl32(pb, 0); /* flags */
avio_wl16(pb, 0); /* priority */
avio_wl16(pb, 0); /* language */
avio_wl32(pb, 0); /* initial frame */
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
if ( stream->codec_type == AVMEDIA_TYPE_VIDEO
&& stream->codec_id != AV_CODEC_ID_XSUB
&& au_byterate > 1000LL*au_scale) {
au_byterate = 600;
au_scale = 1;
}
avpriv_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
if(stream->codec_id == AV_CODEC_ID_XSUB)
au_scale = au_byterate = 0;
avio_wl32(pb, au_scale); /* scale */
avio_wl32(pb, au_byterate); /* rate */
avio_wl32(pb, 0); /* start */
avist->frames_hdr_strm = avio_tell(pb); /* remember this offset to fill later */
if (!pb->seekable)
avio_wl32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
else
avio_wl32(pb, 0); /* length, XXX: filled later */
/* suggested buffer size */ //FIXME set at the end to largest chunk
if(stream->codec_type == AVMEDIA_TYPE_VIDEO)
avio_wl32(pb, 1024 * 1024);
else if(stream->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wl32(pb, 12 * 1024);
else
avio_wl32(pb, 0);
avio_wl32(pb, -1); /* quality */
avio_wl32(pb, au_ssize); /* sample size */
avio_wl32(pb, 0);
avio_wl16(pb, stream->width);
avio_wl16(pb, stream->height);
ff_end_tag(pb, strh);
if(stream->codec_type != AVMEDIA_TYPE_DATA){
int ret;
strf = ff_start_tag(pb, "strf");
switch(stream->codec_type) {
case AVMEDIA_TYPE_SUBTITLE:
// XSUB subtitles behave like video tracks, other subtitles
// are not (yet) supported.
if (stream->codec_id != AV_CODEC_ID_XSUB) break;
case AVMEDIA_TYPE_VIDEO:
ff_put_bmp_header(pb, stream, ff_codec_bmp_tags, 0);
break;
case AVMEDIA_TYPE_AUDIO:
if ((ret = ff_put_wav_header(pb, stream)) < 0) {
return ret;
}
break;
default:
av_log(s, AV_LOG_ERROR,
"Invalid or not supported codec type '%s' found in the input\n",
(char *)av_x_if_null(av_get_media_type_string(stream->codec_type), "?"));
return AVERROR(EINVAL);
}
ff_end_tag(pb, strf);
if ((t = av_dict_get(s->streams[i]->metadata, "title", NULL, 0))) {
ff_riff_write_info_tag(s->pb, "strn", t->value);
t = NULL;
}
}
if (pb->seekable) {
unsigned char tag[5];
int j;
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons.
*/
avist->indexes.entry = avist->indexes.ents_allocated = 0;
avist->indexes.indx_start = ff_start_tag(pb, "JUNK");
avio_wl16(pb, 4); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
avio_wl32(pb, 0); /* nEntriesInUse (will fill out later on) */
ffio_wfourcc(pb, avi_stream2fourcc(tag, i, stream->codec_type));
/* dwChunkId */
avio_wl64(pb, 0); /* dwReserved[3]
avio_wl32(pb, 0); Must be 0. */
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
avio_wl64(pb, 0);
ff_end_tag(pb, avist->indexes.indx_start);
}
if( stream->codec_type == AVMEDIA_TYPE_VIDEO
&& s->streams[i]->sample_aspect_ratio.num>0
&& s->streams[i]->sample_aspect_ratio.den>0){
int vprp= ff_start_tag(pb, "vprp");
AVRational dar = av_mul_q(s->streams[i]->sample_aspect_ratio,
(AVRational){stream->width, stream->height});
int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
avio_wl32(pb, 0); //video format = unknown
avio_wl32(pb, 0); //video standard= unknown
avio_wl32(pb, lrintf(1.0/av_q2d(stream->time_base)));
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl16(pb, den);
avio_wl16(pb, num);
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl32(pb, 1); //progressive FIXME
avio_wl32(pb, stream->height);
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl32(pb, stream->width );
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
ff_end_tag(pb, vprp);
}
ff_end_tag(pb, list2);
}
if (pb->seekable) {
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
avi->odml_list = ff_start_tag(pb, "JUNK");
ffio_wfourcc(pb, "odml");
ffio_wfourcc(pb, "dmlh");
avio_wl32(pb, 248);
for (i = 0; i < 248; i+= 4)
avio_wl32(pb, 0);
ff_end_tag(pb, avi->odml_list);
}
ff_end_tag(pb, list1);
ff_riff_write_info(s);
/* some padding for easier tag editing */
list2 = ff_start_tag(pb, "JUNK");
for (i = 0; i < 1016; i += 4)
avio_wl32(pb, 0);
ff_end_tag(pb, list2);
avi->movi_list = ff_start_tag(pb, "LIST");
ffio_wfourcc(pb, "movi");
avio_flush(pb);
return 0;
}
/* returns the size or -1 on error */
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc, int flags)
{
int bps, blkalign, bytespersec, frame_size;
int hdrsize;
int64_t hdrstart = avio_tell(pb);
int waveformatextensible;
uint8_t temp[256];
uint8_t *riff_extradata = temp;
uint8_t *riff_extradata_start = temp;
if (!enc->codec_tag || enc->codec_tag > 0xffff)
return -1;
/* We use the known constant frame size for the codec if known, otherwise
* fall back on using AVCodecContext.frame_size, which is not as reliable
* for indicating packet duration. */
frame_size = av_get_audio_frame_duration(enc, 0);
if (!frame_size)
frame_size = enc->frame_size;
waveformatextensible = (enc->channels > 2 && enc->channel_layout) ||
enc->sample_rate > 48000 ||
enc->codec_id == AV_CODEC_ID_EAC3 ||
av_get_bits_per_sample(enc->codec_id) > 16;
if (waveformatextensible)
avio_wl16(pb, 0xfffe);
else
avio_wl16(pb, enc->codec_tag);
avio_wl16(pb, enc->channels);
avio_wl32(pb, enc->sample_rate);
if (enc->codec_id == AV_CODEC_ID_ATRAC3 ||
enc->codec_id == AV_CODEC_ID_G723_1 ||
enc->codec_id == AV_CODEC_ID_MP2 ||
enc->codec_id == AV_CODEC_ID_MP3 ||
enc->codec_id == AV_CODEC_ID_GSM_MS) {
bps = 0;
} else {
if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
if (enc->bits_per_coded_sample)
bps = enc->bits_per_coded_sample;
else
bps = 16; // default to 16
}
}
if (bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample) {
av_log(enc, AV_LOG_WARNING,
"requested bits_per_coded_sample (%d) "
"and actually stored (%d) differ\n",
enc->bits_per_coded_sample, bps);
}
if (enc->codec_id == AV_CODEC_ID_MP2 ||
enc->codec_id == AV_CODEC_ID_MP3) {
/* This is wrong, but it seems many demuxers do not work if this
* is set correctly. */
blkalign = frame_size;
// blkalign = 144 * enc->bit_rate/enc->sample_rate;
} else if (enc->codec_id == AV_CODEC_ID_AC3) {
blkalign = 3840; /* maximum bytes per frame */
} else if (enc->codec_id == AV_CODEC_ID_AAC) {
blkalign = 768 * enc->channels; /* maximum bytes per frame */
} else if (enc->codec_id == AV_CODEC_ID_G723_1) {
blkalign = 24;
} else if (enc->block_align != 0) { /* specified by the codec */
blkalign = enc->block_align;
} else
blkalign = bps * enc->channels / av_gcd(8, bps);
if (enc->codec_id == AV_CODEC_ID_PCM_U8 ||
enc->codec_id == AV_CODEC_ID_PCM_S24LE ||
enc->codec_id == AV_CODEC_ID_PCM_S32LE ||
enc->codec_id == AV_CODEC_ID_PCM_F32LE ||
enc->codec_id == AV_CODEC_ID_PCM_F64LE ||
enc->codec_id == AV_CODEC_ID_PCM_S16LE) {
bytespersec = enc->sample_rate * blkalign;
} else if (enc->codec_id == AV_CODEC_ID_G723_1) {
bytespersec = 800;
} else {
bytespersec = enc->bit_rate / 8;
}
avio_wl32(pb, bytespersec); /* bytes per second */
avio_wl16(pb, blkalign); /* block align */
avio_wl16(pb, bps); /* bits per sample */
if (enc->codec_id == AV_CODEC_ID_MP3) {
bytestream_put_le16(&riff_extradata, 1); /* wID */
bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
} else if (enc->codec_id == AV_CODEC_ID_MP2) {
/* fwHeadLayer */
bytestream_put_le16(&riff_extradata, 2);
/* dwHeadBitrate */
bytestream_put_le32(&riff_extradata, enc->bit_rate);
/* fwHeadMode */
bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8);
/* fwHeadModeExt */
bytestream_put_le16(&riff_extradata, 0);
/* wHeadEmphasis */
bytestream_put_le16(&riff_extradata, 1);
/* fwHeadFlags */
bytestream_put_le16(&riff_extradata, 16);
/* dwPTSLow */
bytestream_put_le32(&riff_extradata, 0);
/* dwPTSHigh */
bytestream_put_le32(&riff_extradata, 0);
} else if (enc->codec_id == AV_CODEC_ID_G723_1) {
bytestream_put_le32(&riff_extradata, 0x9ace0002); /* extradata needed for msacm g723.1 codec */
bytestream_put_le32(&riff_extradata, 0xaea2f732);
bytestream_put_le16(&riff_extradata, 0xacde);
} else if (enc->codec_id == AV_CODEC_ID_GSM_MS ||
enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
/* wSamplesPerBlock */
bytestream_put_le16(&riff_extradata, frame_size);
} else if (enc->extradata_size) {
riff_extradata_start = enc->extradata;
riff_extradata = enc->extradata + enc->extradata_size;
}
/* write WAVEFORMATEXTENSIBLE extensions */
if (waveformatextensible) {
int write_channel_mask = enc->strict_std_compliance < FF_COMPLIANCE_NORMAL ||
enc->channel_layout < 0x40000;
/* 22 is WAVEFORMATEXTENSIBLE size */
avio_wl16(pb, riff_extradata - riff_extradata_start + 22);
/* ValidBitsPerSample || SamplesPerBlock || Reserved */
avio_wl16(pb, bps);
/* dwChannelMask */
avio_wl32(pb, write_channel_mask ? enc->channel_layout : 0);
/* GUID + next 3 */
if (enc->codec_id == AV_CODEC_ID_EAC3) {
ff_put_guid(pb, get_codec_guid(enc->codec_id, ff_codec_wav_guids));
} else {
avio_wl32(pb, enc->codec_tag);
avio_wl32(pb, 0x00100000);
avio_wl32(pb, 0xAA000080);
avio_wl32(pb, 0x719B3800);
}
} else if ((flags & FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX) ||
enc->codec_tag != 0x0001 /* PCM */ ||
riff_extradata - riff_extradata_start) {
/* WAVEFORMATEX */
avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
} /* else PCMWAVEFORMAT */
avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
hdrsize = avio_tell(pb) - hdrstart;
if (hdrsize & 1) {
hdrsize++;
avio_w8(pb, 0);
}
return hdrsize;
}
static int rv10_write_header(AVFormatContext *ctx,
int data_size, int index_pos)
{
RMMuxContext *rm = ctx->priv_data;
AVIOContext *s = ctx->pb;
StreamInfo *stream;
unsigned char *data_offset_ptr, *start_ptr;
const char *desc, *mimetype;
int nb_packets, packet_total_size, packet_max_size, size, packet_avg_size, i;
int bit_rate, v, duration, flags, data_pos;
AVDictionaryEntry *tag;
start_ptr = s->buf_ptr;
ffio_wfourcc(s, ".RMF");
avio_wb32(s,18); /* header size */
avio_wb16(s,0);
avio_wb32(s,0);
avio_wb32(s,4 + ctx->nb_streams); /* num headers */
ffio_wfourcc(s,"PROP");
avio_wb32(s, 50);
avio_wb16(s, 0);
packet_max_size = 0;
packet_total_size = 0;
nb_packets = 0;
bit_rate = 0;
duration = 0;
for(i=0;i<ctx->nb_streams;i++) {
StreamInfo *stream = &rm->streams[i];
bit_rate += stream->bit_rate;
if (stream->packet_max_size > packet_max_size)
packet_max_size = stream->packet_max_size;
nb_packets += stream->nb_packets;
packet_total_size += stream->packet_total_size;
/* select maximum duration */
v = (int) (1000.0 * (float)stream->total_frames / stream->frame_rate);
if (v > duration)
duration = v;
}
avio_wb32(s, bit_rate); /* max bit rate */
avio_wb32(s, bit_rate); /* avg bit rate */
avio_wb32(s, packet_max_size); /* max packet size */
if (nb_packets > 0)
packet_avg_size = packet_total_size / nb_packets;
else
packet_avg_size = 0;
avio_wb32(s, packet_avg_size); /* avg packet size */
avio_wb32(s, nb_packets); /* num packets */
avio_wb32(s, duration); /* duration */
avio_wb32(s, BUFFER_DURATION); /* preroll */
avio_wb32(s, index_pos); /* index offset */
/* computation of data the data offset */
data_offset_ptr = s->buf_ptr;
avio_wb32(s, 0); /* data offset : will be patched after */
avio_wb16(s, ctx->nb_streams); /* num streams */
flags = 1 | 2; /* save allowed & perfect play */
if (!s->seekable)
flags |= 4; /* live broadcast */
avio_wb16(s, flags);
/* comments */
ffio_wfourcc(s,"CONT");
size = 4 * 2 + 10;
for(i=0; i<FF_ARRAY_ELEMS(ff_rm_metadata); i++) {
tag = av_dict_get(ctx->metadata, ff_rm_metadata[i], NULL, 0);
if(tag) size += strlen(tag->value);
}
avio_wb32(s,size);
avio_wb16(s,0);
for(i=0; i<FF_ARRAY_ELEMS(ff_rm_metadata); i++) {
tag = av_dict_get(ctx->metadata, ff_rm_metadata[i], NULL, 0);
put_str(s, tag ? tag->value : "");
}
for(i=0;i<ctx->nb_streams;i++) {
int codec_data_size;
stream = &rm->streams[i];
if (stream->par->codec_type == AVMEDIA_TYPE_AUDIO) {
desc = "The Audio Stream";
mimetype = "audio/x-pn-realaudio";
codec_data_size = 73;
} else {
desc = "The Video Stream";
mimetype = "video/x-pn-realvideo";
codec_data_size = 34;
}
ffio_wfourcc(s,"MDPR");
size = 10 + 9 * 4 + strlen(desc) + strlen(mimetype) + codec_data_size;
avio_wb32(s, size);
avio_wb16(s, 0);
avio_wb16(s, i); /* stream number */
avio_wb32(s, stream->bit_rate); /* max bit rate */
avio_wb32(s, stream->bit_rate); /* avg bit rate */
avio_wb32(s, stream->packet_max_size); /* max packet size */
if (stream->nb_packets > 0)
packet_avg_size = stream->packet_total_size /
stream->nb_packets;
else
packet_avg_size = 0;
avio_wb32(s, packet_avg_size); /* avg packet size */
avio_wb32(s, 0); /* start time */
avio_wb32(s, BUFFER_DURATION); /* preroll */
/* duration */
if (!s->seekable || !stream->total_frames)
avio_wb32(s, (int)(3600 * 1000));
else
avio_wb32(s, (int)(stream->total_frames * 1000 / stream->frame_rate));
put_str8(s, desc);
put_str8(s, mimetype);
avio_wb32(s, codec_data_size);
if (stream->par->codec_type == AVMEDIA_TYPE_AUDIO) {
int coded_frame_size, fscode, sample_rate;
int frame_size = av_get_audio_frame_duration2(stream->par, 0);
sample_rate = stream->par->sample_rate;
coded_frame_size = (stream->par->bit_rate *
frame_size) / (8 * sample_rate);
/* audio codec info */
avio_write(s, ".ra", 3);
avio_w8(s, 0xfd);
avio_wb32(s, 0x00040000); /* version */
ffio_wfourcc(s, ".ra4");
avio_wb32(s, 0x01b53530); /* stream length */
avio_wb16(s, 4); /* unknown */
avio_wb32(s, 0x39); /* header size */
switch(sample_rate) {
case 48000:
case 24000:
case 12000:
fscode = 1;
break;
default:
case 44100:
case 22050:
case 11025:
fscode = 2;
break;
case 32000:
case 16000:
case 8000:
fscode = 3;
}
avio_wb16(s, fscode); /* codec additional info, for AC-3, seems
to be a frequency code */
/* special hack to compensate rounding errors... */
if (coded_frame_size == 557)
coded_frame_size--;
avio_wb32(s, coded_frame_size); /* frame length */
avio_wb32(s, 0x51540); /* unknown */
avio_wb32(s, 0x249f0); /* unknown */
avio_wb32(s, 0x249f0); /* unknown */
avio_wb16(s, 0x01);
/* frame length : seems to be very important */
avio_wb16(s, coded_frame_size);
avio_wb32(s, 0); /* unknown */
avio_wb16(s, stream->par->sample_rate); /* sample rate */
avio_wb32(s, 0x10); /* unknown */
avio_wb16(s, stream->par->channels);
put_str8(s, "Int0"); /* codec name */
if (stream->par->codec_tag) {
avio_w8(s, 4); /* tag length */
avio_wl32(s, stream->par->codec_tag);
} else {
av_log(ctx, AV_LOG_ERROR, "Invalid codec tag\n");
return -1;
}
avio_wb16(s, 0); /* title length */
avio_wb16(s, 0); /* author length */
avio_wb16(s, 0); /* copyright length */
avio_w8(s, 0); /* end of header */
} else {
/* video codec info */
avio_wb32(s,34); /* size */
ffio_wfourcc(s, "VIDO");
if(stream->par->codec_id == AV_CODEC_ID_RV10)
ffio_wfourcc(s,"RV10");
else
ffio_wfourcc(s,"RV20");
avio_wb16(s, stream->par->width);
avio_wb16(s, stream->par->height);
avio_wb16(s, (int) stream->frame_rate); /* frames per seconds ? */
avio_wb32(s,0); /* unknown meaning */
avio_wb16(s, (int) stream->frame_rate); /* unknown meaning */
avio_wb32(s,0); /* unknown meaning */
avio_wb16(s, 8); /* unknown meaning */
/* Seems to be the codec version: only use basic H.263. The next
versions seems to add a differential DC coding as in
MPEG... nothing new under the sun. */
if(stream->par->codec_id == AV_CODEC_ID_RV10)
avio_wb32(s,0x10000000);
else
avio_wb32(s,0x20103001);
//avio_wb32(s,0x10003000);
}
}
/* patch data offset field */
data_pos = s->buf_ptr - start_ptr;
rm->data_pos = data_pos;
data_offset_ptr[0] = data_pos >> 24;
data_offset_ptr[1] = data_pos >> 16;
data_offset_ptr[2] = data_pos >> 8;
data_offset_ptr[3] = data_pos;
/* data stream */
ffio_wfourcc(s, "DATA");
avio_wb32(s,data_size + 10 + 8);
avio_wb16(s,0);
avio_wb32(s, nb_packets); /* number of packets */
avio_wb32(s,0); /* next data header */
return 0;
}
int ff_ape_write_tag(AVFormatContext *s)
{
AVDictionaryEntry *e = NULL;
int64_t start, end;
int size, count = 0;
if (!s->pb->seekable)
return 0;
start = avio_tell(s->pb);
// header
avio_write(s->pb, "APETAGEX", 8); // id
avio_wl32 (s->pb, APE_TAG_VERSION); // version
avio_wl32(s->pb, 0); // reserve space for size
avio_wl32(s->pb, 0); // reserve space for tag count
// flags
avio_wl32(s->pb, APE_TAG_FLAG_CONTAINS_HEADER | APE_TAG_FLAG_CONTAINS_FOOTER |
APE_TAG_FLAG_IS_HEADER);
ffio_fill(s->pb, 0, 8); // reserved
while ((e = av_dict_get(s->metadata, "", e, AV_DICT_IGNORE_SUFFIX))) {
int val_len = strlen(e->value);
avio_wl32(s->pb, val_len); // value length
avio_wl32(s->pb, 0); // item flags
avio_put_str(s->pb, e->key); // key
avio_write(s->pb, e->value, val_len); // value
count++;
}
size = avio_tell(s->pb) - start;
// footer
avio_write(s->pb, "APETAGEX", 8); // id
avio_wl32 (s->pb, APE_TAG_VERSION); // version
avio_wl32(s->pb, size); // size
avio_wl32(s->pb, count); // tag count
// flags
avio_wl32(s->pb, APE_TAG_FLAG_CONTAINS_HEADER | APE_TAG_FLAG_CONTAINS_FOOTER);
ffio_fill(s->pb, 0, 8); // reserved
// update values in the header
end = avio_tell(s->pb);
avio_seek(s->pb, start + 12, SEEK_SET);
avio_wl32(s->pb, size);
avio_wl32(s->pb, count);
avio_seek(s->pb, end, SEEK_SET);
return 0;
}
static int write_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
WtvContext *wctx = s->priv_data;
int i, pad, ret;
AVStream *st;
wctx->last_chunk_pos = -1;
wctx->last_timestamp_pos = -1;
ff_put_guid(pb, &ff_wtv_guid);
ff_put_guid(pb, &sub_wtv_guid);
avio_wl32(pb, 0x01);
avio_wl32(pb, 0x02);
avio_wl32(pb, 1 << WTV_SECTOR_BITS);
avio_wl32(pb, 1 << WTV_BIGSECTOR_BITS);
//write initial root fields
avio_wl32(pb, 0); // root_size, update later
write_pad(pb, 4);
avio_wl32(pb, 0); // root_sector, update it later.
write_pad(pb, 32);
avio_wl32(pb, 0); // file ends pointer, update it later.
pad = (1 << WTV_SECTOR_BITS) - avio_tell(pb);
write_pad(pb, pad);
wctx->timeline_start_pos = avio_tell(pb);
wctx->serial = 1;
wctx->last_chunk_pos = -1;
wctx->first_video_flag = 1;
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
if (st->codec->codec_id == AV_CODEC_ID_MJPEG)
continue;
ret = write_stream_codec(s, st);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "write stream codec failed codec_type(0x%x)\n", st->codec->codec_type);
return -1;
}
if (!i)
write_sync(s);
}
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
if (st->codec->codec_id == AV_CODEC_ID_MJPEG)
continue;
ret = write_stream_data(s, st);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "write stream data failed codec_type(0x%x)\n", st->codec->codec_type);
return -1;
}
}
if (wctx->nb_index)
write_index(s);
return 0;
}
int ff_ape_write_tag(AVFormatContext *s)
{
AVDictionaryEntry *e = NULL;
int size, ret, count = 0;
AVIOContext *dyn_bc = NULL;
uint8_t *dyn_buf = NULL;
if ((ret = avio_open_dyn_buf(&dyn_bc)) < 0)
goto end;
// flags
avio_wl32(dyn_bc, APE_TAG_FLAG_CONTAINS_HEADER | APE_TAG_FLAG_CONTAINS_FOOTER |
APE_TAG_FLAG_IS_HEADER);
ffio_fill(dyn_bc, 0, 8); // reserved
while ((e = av_dict_get(s->metadata, "", e, AV_DICT_IGNORE_SUFFIX))) {
int val_len;
if (!string_is_ascii(e->key)) {
av_log(s, AV_LOG_WARNING, "Non ASCII keys are not allowed\n");
continue;
}
val_len = strlen(e->value);
avio_wl32(dyn_bc, val_len); // value length
avio_wl32(dyn_bc, 0); // item flags
avio_put_str(dyn_bc, e->key); // key
avio_write(dyn_bc, e->value, val_len); // value
count++;
}
if (!count)
goto end;
size = avio_close_dyn_buf(dyn_bc, &dyn_buf);
if (size <= 0)
goto end;
size += 20;
// header
avio_write(s->pb, "APETAGEX", 8); // id
avio_wl32(s->pb, APE_TAG_VERSION); // version
avio_wl32(s->pb, size);
avio_wl32(s->pb, count);
avio_write(s->pb, dyn_buf, size - 20);
// footer
avio_write(s->pb, "APETAGEX", 8); // id
avio_wl32(s->pb, APE_TAG_VERSION); // version
avio_wl32(s->pb, size); // size
avio_wl32(s->pb, count); // tag count
// flags
avio_wl32(s->pb, APE_TAG_FLAG_CONTAINS_HEADER | APE_TAG_FLAG_CONTAINS_FOOTER);
ffio_fill(s->pb, 0, 8); // reserved
end:
if (dyn_bc && !dyn_buf)
avio_close_dyn_buf(dyn_bc, &dyn_buf);
av_freep(&dyn_buf);
return ret;
}
static int aiff_write_header(AVFormatContext *s)
{
AIFFOutputContext *aiff = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecParameters *par;
uint64_t sample_rate;
int i, aifc = 0;
aiff->audio_stream_idx = -1;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
if (aiff->audio_stream_idx < 0 && st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
aiff->audio_stream_idx = i;
} else if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO) {
av_log(s, AV_LOG_ERROR, "AIFF allows only one audio stream and a picture.\n");
return AVERROR(EINVAL);
}
}
if (aiff->audio_stream_idx < 0) {
av_log(s, AV_LOG_ERROR, "No audio stream present.\n");
return AVERROR(EINVAL);
}
par = s->streams[aiff->audio_stream_idx]->codecpar;
/* First verify if format is ok */
if (!par->codec_tag)
return -1;
if (par->codec_tag != MKTAG('N','O','N','E'))
aifc = 1;
/* FORM AIFF header */
ffio_wfourcc(pb, "FORM");
aiff->form = avio_tell(pb);
avio_wb32(pb, 0); /* file length */
ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF");
if (aifc) { // compressed audio
if (!par->block_align) {
av_log(s, AV_LOG_ERROR, "block align not set\n");
return -1;
}
/* Version chunk */
ffio_wfourcc(pb, "FVER");
avio_wb32(pb, 4);
avio_wb32(pb, 0xA2805140);
}
if (par->channels > 2 && par->channel_layout) {
ffio_wfourcc(pb, "CHAN");
avio_wb32(pb, 12);
ff_mov_write_chan(pb, par->channel_layout);
}
put_meta(s, "title", MKTAG('N', 'A', 'M', 'E'));
put_meta(s, "author", MKTAG('A', 'U', 'T', 'H'));
put_meta(s, "copyright", MKTAG('(', 'c', ')', ' '));
put_meta(s, "comment", MKTAG('A', 'N', 'N', 'O'));
/* Common chunk */
ffio_wfourcc(pb, "COMM");
avio_wb32(pb, aifc ? 24 : 18); /* size */
avio_wb16(pb, par->channels); /* Number of channels */
aiff->frames = avio_tell(pb);
avio_wb32(pb, 0); /* Number of frames */
if (!par->bits_per_coded_sample)
par->bits_per_coded_sample = av_get_bits_per_sample(par->codec_id);
if (!par->bits_per_coded_sample) {
av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
return -1;
}
if (!par->block_align)
par->block_align = (par->bits_per_coded_sample * par->channels) >> 3;
avio_wb16(pb, par->bits_per_coded_sample); /* Sample size */
sample_rate = av_double2int(par->sample_rate);
avio_wb16(pb, (sample_rate >> 52) + (16383 - 1023));
avio_wb64(pb, UINT64_C(1) << 63 | sample_rate << 11);
if (aifc) {
avio_wl32(pb, par->codec_tag);
avio_wb16(pb, 0);
}
if (par->codec_tag == MKTAG('Q','D','M','2') && par->extradata_size) {
ffio_wfourcc(pb, "wave");
avio_wb32(pb, par->extradata_size);
avio_write(pb, par->extradata, par->extradata_size);
}
/* Sound data chunk */
ffio_wfourcc(pb, "SSND");
aiff->ssnd = avio_tell(pb); /* Sound chunk size */
avio_wb32(pb, 0); /* Sound samples data size */
avio_wb32(pb, 0); /* Data offset */
avio_wb32(pb, 0); /* Block-size (block align) */
avpriv_set_pts_info(s->streams[aiff->audio_stream_idx], 64, 1,
s->streams[aiff->audio_stream_idx]->codecpar->sample_rate);
/* Data is starting here */
avio_flush(pb);
return 0;
}
static int aiff_write_header(AVFormatContext *s)
{
AIFFOutputContext *aiff = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[0]->codec;
uint64_t sample_rate;
int aifc = 0;
/* First verify if format is ok */
if (!enc->codec_tag)
return -1;
if (enc->codec_tag != MKTAG('N','O','N','E'))
aifc = 1;
/* FORM AIFF header */
ffio_wfourcc(pb, "FORM");
aiff->form = avio_tell(pb);
avio_wb32(pb, 0); /* file length */
ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF");
if (aifc) { // compressed audio
enc->bits_per_coded_sample = 16;
if (!enc->block_align) {
av_log(s, AV_LOG_ERROR, "block align not set\n");
return -1;
}
/* Version chunk */
ffio_wfourcc(pb, "FVER");
avio_wb32(pb, 4);
avio_wb32(pb, 0xA2805140);
}
if (enc->channels > 2 && enc->channel_layout) {
ffio_wfourcc(pb, "CHAN");
avio_wb32(pb, 12);
ff_mov_write_chan(pb, enc->channel_layout);
}
/* Common chunk */
ffio_wfourcc(pb, "COMM");
avio_wb32(pb, aifc ? 24 : 18); /* size */
avio_wb16(pb, enc->channels); /* Number of channels */
aiff->frames = avio_tell(pb);
avio_wb32(pb, 0); /* Number of frames */
if (!enc->bits_per_coded_sample)
enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
if (!enc->bits_per_coded_sample) {
av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
return -1;
}
if (!enc->block_align)
enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
avio_wb16(pb, enc->bits_per_coded_sample); /* Sample size */
sample_rate = av_double2int(enc->sample_rate);
avio_wb16(pb, (sample_rate >> 52) + (16383 - 1023));
avio_wb64(pb, UINT64_C(1) << 63 | sample_rate << 11);
if (aifc) {
avio_wl32(pb, enc->codec_tag);
avio_wb16(pb, 0);
}
if (enc->codec_tag == MKTAG('Q','D','M','2') && enc->extradata_size) {
ffio_wfourcc(pb, "wave");
avio_wb32(pb, enc->extradata_size);
avio_write(pb, enc->extradata, enc->extradata_size);
}
/* Sound data chunk */
ffio_wfourcc(pb, "SSND");
aiff->ssnd = avio_tell(pb); /* Sound chunk size */
avio_wb32(pb, 0); /* Sound samples data size */
avio_wb32(pb, 0); /* Data offset */
avio_wb32(pb, 0); /* Block-size (block align) */
avpriv_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
/* Data is starting here */
avio_flush(pb);
return 0;
}
/* write the header (used two times if non streamed) */
static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = s->pb;
AVDictionaryEntry *tags[5];
int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
int has_title;
int metadata_count;
AVCodecContext *enc;
int64_t header_offset, cur_pos, hpos;
int bit_rate;
int64_t duration;
tags[0] = av_dict_get(s->metadata, "title" , NULL, 0);
tags[1] = av_dict_get(s->metadata, "author" , NULL, 0);
tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
tags[3] = av_dict_get(s->metadata, "comment" , NULL, 0);
tags[4] = av_dict_get(s->metadata, "rating" , NULL, 0);
duration = asf->duration + PREROLL_TIME * 10000;
has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
metadata_count = s->metadata ? s->metadata->count : 0;
bit_rate = 0;
for(n=0;n<s->nb_streams;n++) {
enc = s->streams[n]->codec;
av_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
bit_rate += enc->bit_rate;
}
if (asf->is_streamed) {
put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
}
put_guid(pb, &ff_asf_header);
avio_wl64(pb, -1); /* header length, will be patched after */
avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
avio_w8(pb, 1); /* ??? */
avio_w8(pb, 2); /* ??? */
/* file header */
header_offset = avio_tell(pb);
hpos = put_header(pb, &ff_asf_file_header);
put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, file_size);
file_time = 0;
avio_wl64(pb, unix_to_file_time(file_time));
avio_wl64(pb, asf->nb_packets); /* number of packets */
avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
avio_wl64(pb, PREROLL_TIME); /* start time stamp */
avio_wl32(pb, (asf->is_streamed || !pb->seekable ) ? 3 : 2); /* ??? */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, bit_rate); /* Nominal data rate in bps */
end_header(pb, hpos);
/* unknown headers */
hpos = put_header(pb, &ff_asf_head1_guid);
put_guid(pb, &ff_asf_head2_guid);
avio_wl32(pb, 6);
avio_wl16(pb, 0);
end_header(pb, hpos);
/* title and other infos */
if (has_title) {
int len;
uint8_t *buf;
AVIOContext *dyn_buf;
if (avio_open_dyn_buf(&dyn_buf) < 0)
return AVERROR(ENOMEM);
hpos = put_header(pb, &ff_asf_comment_header);
for (n = 0; n < FF_ARRAY_ELEMS(tags); n++) {
len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;
avio_wl16(pb, len);
}
len = avio_close_dyn_buf(dyn_buf, &buf);
avio_write(pb, buf, len);
av_freep(&buf);
end_header(pb, hpos);
}
if (metadata_count) {
AVDictionaryEntry *tag = NULL;
hpos = put_header(pb, &ff_asf_extended_content_header);
avio_wl16(pb, metadata_count);
while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (!strcmp(tag->key, "cover")) {
const char *mime = av_metadata_get_attribute(tag, "mime");
int len;
if (!mime) {
av_log(s, AV_LOG_ERROR, "error, no mime type set for cover\n");
return 0;
}
len = 1 + 4 + (strlen(mime)+1)*2 + 2 + tag->len;
put_str16(pb, tag->key);
avio_wl16(pb, 1);
avio_wl16(pb, len);
avio_w8(pb, 3);
avio_wl32(pb, tag->len);
put_str16(pb, mime);
avio_wl16(pb, 0);
avio_write(pb, tag->value, tag->len);
} else {
const char *key = NULL;
int i;
for (i = 0; ff_asf_metadata_conv[i].native; i++) {
if (!strcmp(ff_asf_metadata_conv[i].generic, tag->key)) {
key = ff_asf_metadata_conv[i].native;
break;
}
}
if (!tag)
continue;
put_str16(pb, key);
if (tag->type == METADATA_BYTEARRAY) {
avio_wl16(pb, 1);
avio_wl16(pb, tag->len);
avio_write(pb, tag->value, tag->len);
} else {
avio_wl16(pb, 0);
put_str16(pb, tag->value);
}
}
}
end_header(pb, hpos);
}
/* stream headers */
for(n=0;n<s->nb_streams;n++) {
int64_t es_pos;
// ASFStream *stream = &asf->streams[n];
enc = s->streams[n]->codec;
asf->streams[n].num = n + 1;
asf->streams[n].seq = 0;
switch(enc->codec_type) {
case AVMEDIA_TYPE_AUDIO:
wav_extra_size = 0;
extra_size = 18 + wav_extra_size;
extra_size2 = 8;
break;
default:
case AVMEDIA_TYPE_VIDEO:
wav_extra_size = enc->extradata_size;
extra_size = 0x33 + wav_extra_size;
extra_size2 = 0;
break;
}
hpos = put_header(pb, &ff_asf_stream_header);
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
put_guid(pb, &ff_asf_audio_stream);
put_guid(pb, &ff_asf_audio_conceal_spread);
} else {
put_guid(pb, &ff_asf_video_stream);
put_guid(pb, &ff_asf_video_conceal_none);
}
avio_wl64(pb, 0); /* ??? */
es_pos = avio_tell(pb);
avio_wl32(pb, extra_size); /* wav header len */
avio_wl32(pb, extra_size2); /* additional data len */
avio_wl16(pb, n + 1); /* stream number */
avio_wl32(pb, 0); /* ??? */
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
/* WAVEFORMATEX header */
int wavsize = ff_put_wav_header(pb, enc);
if ((enc->codec_id != CODEC_ID_MP3) && (enc->codec_id != CODEC_ID_MP2) && (enc->codec_id != CODEC_ID_ADPCM_IMA_WAV) && (enc->extradata_size==0)) {
wavsize += 2;
avio_wl16(pb, 0);
}
if (wavsize < 0)
return -1;
if (wavsize != extra_size) {
cur_pos = avio_tell(pb);
avio_seek(pb, es_pos, SEEK_SET);
avio_wl32(pb, wavsize); /* wav header len */
avio_seek(pb, cur_pos, SEEK_SET);
}
/* ERROR Correction */
avio_w8(pb, 0x01);
if(enc->codec_id == CODEC_ID_ADPCM_G726 || !enc->block_align){
avio_wl16(pb, 0x0190);
avio_wl16(pb, 0x0190);
}else{
avio_wl16(pb, enc->block_align);
avio_wl16(pb, enc->block_align);
}
avio_wl16(pb, 0x01);
avio_w8(pb, 0x00);
} else {
avio_wl32(pb, enc->width);
avio_wl32(pb, enc->height);
avio_w8(pb, 2); /* ??? */
avio_wl16(pb, 40 + enc->extradata_size); /* size */
/* BITMAPINFOHEADER header */
ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 1);
}
end_header(pb, hpos);
}
/* media comments */
hpos = put_header(pb, &ff_asf_codec_comment_header);
put_guid(pb, &ff_asf_codec_comment1_header);
avio_wl32(pb, s->nb_streams);
for(n=0;n<s->nb_streams;n++) {
AVCodec *p;
const char *desc;
int len;
uint8_t *buf;
AVIOContext *dyn_buf;
enc = s->streams[n]->codec;
p = avcodec_find_encoder(enc->codec_id);
if(enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wl16(pb, 2);
else if(enc->codec_type == AVMEDIA_TYPE_VIDEO)
avio_wl16(pb, 1);
else
avio_wl16(pb, -1);
if(enc->codec_id == CODEC_ID_WMAV2)
desc = "Windows Media Audio V8";
else
desc = p ? p->name : enc->codec_name;
if ( avio_open_dyn_buf(&dyn_buf) < 0)
return AVERROR(ENOMEM);
avio_put_str16le(dyn_buf, desc);
len = avio_close_dyn_buf(dyn_buf, &buf);
avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
avio_write(pb, buf, len);
av_freep(&buf);
avio_wl16(pb, 0); /* no parameters */
/* id */
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avio_wl16(pb, 2);
avio_wl16(pb, enc->codec_tag);
} else {
avio_wl16(pb, 4);
avio_wl32(pb, enc->codec_tag);
}
if(!enc->codec_tag)
return -1;
}
end_header(pb, hpos);
/* patch the header size fields */
cur_pos = avio_tell(pb);
header_size = cur_pos - header_offset;
if (asf->is_streamed) {
header_size += 8 + 30 + 50;
avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
avio_wl16(pb, header_size);
avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
avio_wl16(pb, header_size);
header_size -= 8 + 30 + 50;
}
header_size += 24 + 6;
avio_seek(pb, header_offset - 14, SEEK_SET);
avio_wl64(pb, header_size);
avio_seek(pb, cur_pos, SEEK_SET);
/* movie chunk, followed by packets of packet_size */
asf->data_offset = cur_pos;
put_guid(pb, &ff_asf_data_header);
avio_wl64(pb, data_chunk_size);
put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, asf->nb_packets); /* nb packets */
avio_w8(pb, 1); /* ??? */
avio_w8(pb, 1); /* ??? */
return 0;
}
static int ffm_write_header(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
AVDictionaryEntry *t;
AVStream *st;
AVIOContext *pb = s->pb;
AVCodecContext *codec;
int bit_rate, i, ret;
if (t = av_dict_get(s->metadata, "creation_time", NULL, 0)) {
ret = av_parse_time(&ffm->start_time, t->value, 0);
if (ret < 0)
return ret;
}
ffm->packet_size = FFM_PACKET_SIZE;
/* header */
avio_wl32(pb, MKTAG('F', 'F', 'M', '2'));
avio_wb32(pb, ffm->packet_size);
avio_wb64(pb, 0); /* current write position */
if(avio_open_dyn_buf(&pb) < 0)
return AVERROR(ENOMEM);
avio_wb32(pb, s->nb_streams);
bit_rate = 0;
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
bit_rate += st->codec->bit_rate;
}
avio_wb32(pb, bit_rate);
write_header_chunk(s->pb, pb, MKBETAG('M', 'A', 'I', 'N'));
/* list of streams */
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
avpriv_set_pts_info(st, 64, 1, 1000000);
if(avio_open_dyn_buf(&pb) < 0)
return AVERROR(ENOMEM);
codec = st->codec;
/* generic info */
avio_wb32(pb, codec->codec_id);
avio_w8(pb, codec->codec_type);
avio_wb32(pb, codec->bit_rate);
avio_wb32(pb, codec->flags);
avio_wb32(pb, codec->flags2);
avio_wb32(pb, codec->debug);
if (codec->flags & CODEC_FLAG_GLOBAL_HEADER) {
avio_wb32(pb, codec->extradata_size);
avio_write(pb, codec->extradata, codec->extradata_size);
}
write_header_chunk(s->pb, pb, MKBETAG('C', 'O', 'M', 'M'));
/* specific info */
switch(codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if (st->recommended_encoder_configuration) {
av_log(NULL, AV_LOG_DEBUG, "writing recommended configuration: %s\n",
st->recommended_encoder_configuration);
if ((ret = ffm_write_recommended_config(s->pb, codec, MKBETAG('S', '2', 'V', 'I'),
st->recommended_encoder_configuration)) < 0)
return ret;
} else if ((ret = ffm_write_header_codec_ctx(s->pb, codec, MKBETAG('S', '2', 'V', 'I'), AV_OPT_FLAG_VIDEO_PARAM)) < 0 ||
(ret = ffm_write_header_codec_private_ctx(s, codec, AV_OPT_FLAG_VIDEO_PARAM)) < 0)
return ret;
break;
case AVMEDIA_TYPE_AUDIO:
if (st->recommended_encoder_configuration) {
av_log(NULL, AV_LOG_DEBUG, "writing recommended configuration: %s\n",
st->recommended_encoder_configuration);
if ((ret = ffm_write_recommended_config(s->pb, codec, MKBETAG('S', '2', 'A', 'U'),
st->recommended_encoder_configuration)) < 0)
return ret;
} else if ((ret = ffm_write_header_codec_ctx(s->pb, codec, MKBETAG('S', '2', 'A', 'U'), AV_OPT_FLAG_AUDIO_PARAM)) < 0 ||
(ret = ffm_write_header_codec_private_ctx(s, codec, AV_OPT_FLAG_AUDIO_PARAM)) < 0)
return ret;
break;
default:
return -1;
}
}
pb = s->pb;
avio_wb64(pb, 0); // end of header
/* flush until end of block reached */
while ((avio_tell(pb) % ffm->packet_size) != 0)
avio_w8(pb, 0);
avio_flush(pb);
/* init packet mux */
ffm->packet_ptr = ffm->packet;
ffm->packet_end = ffm->packet + ffm->packet_size - FFM_HEADER_SIZE;
av_assert0(ffm->packet_end >= ffm->packet);
ffm->frame_offset = 0;
ffm->dts = 0;
ffm->first_packet = 1;
return 0;
}
static int aiff_write_header(AVFormatContext *s)
{
AIFFOutputContext *aiff = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[0]->codec;
AVExtFloat sample_rate;
int aifc = 0;
/* First verify if format is ok */
if (!enc->codec_tag)
return -1;
if (enc->codec_tag != MKTAG('N','O','N','E'))
aifc = 1;
/* FORM AIFF header */
ffio_wfourcc(pb, "FORM");
aiff->form = avio_tell(pb);
avio_wb32(pb, 0); /* file length */
ffio_wfourcc(pb, aifc ? "AIFC" : "AIFF");
if (aifc) { // compressed audio
enc->bits_per_coded_sample = 16;
if (!enc->block_align) {
av_log(s, AV_LOG_ERROR, "block align not set\n");
return -1;
}
/* Version chunk */
ffio_wfourcc(pb, "FVER");
avio_wb32(pb, 4);
avio_wb32(pb, 0xA2805140);
}
/* Common chunk */
ffio_wfourcc(pb, "COMM");
avio_wb32(pb, aifc ? 24 : 18); /* size */
avio_wb16(pb, enc->channels); /* Number of channels */
aiff->frames = avio_tell(pb);
avio_wb32(pb, 0); /* Number of frames */
if (!enc->bits_per_coded_sample)
enc->bits_per_coded_sample = av_get_bits_per_sample(enc->codec_id);
if (!enc->bits_per_coded_sample) {
av_log(s, AV_LOG_ERROR, "could not compute bits per sample\n");
return -1;
}
if (!enc->block_align)
enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;
avio_wb16(pb, enc->bits_per_coded_sample); /* Sample size */
sample_rate = av_dbl2ext((double)enc->sample_rate);
avio_write(pb, (uint8_t*)&sample_rate, sizeof(sample_rate));
if (aifc) {
avio_wl32(pb, enc->codec_tag);
avio_wb16(pb, 0);
}
/* Sound data chunk */
ffio_wfourcc(pb, "SSND");
aiff->ssnd = avio_tell(pb); /* Sound chunk size */
avio_wb32(pb, 0); /* Sound samples data size */
avio_wb32(pb, 0); /* Data offset */
avio_wb32(pb, 0); /* Block-size (block align) */
av_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
/* Data is starting here */
avio_flush(pb);
return 0;
}
static int ffm_write_header(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
AVStream *st;
AVIOContext *pb = s->pb;
AVCodecContext *codec;
int bit_rate, i;
ffm->packet_size = FFM_PACKET_SIZE;
/* header */
avio_wl32(pb, MKTAG('F', 'F', 'M', '1'));
avio_wb32(pb, ffm->packet_size);
avio_wb64(pb, 0); /* current write position */
avio_wb32(pb, s->nb_streams);
bit_rate = 0;
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
bit_rate += st->codec->bit_rate;
}
avio_wb32(pb, bit_rate);
/* list of streams */
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
avpriv_set_pts_info(st, 64, 1, 1000000);
codec = st->codec;
/* generic info */
avio_wb32(pb, codec->codec_id);
avio_w8(pb, codec->codec_type);
avio_wb32(pb, codec->bit_rate);
avio_wb32(pb, codec->flags);
avio_wb32(pb, codec->flags2);
avio_wb32(pb, codec->debug);
/* specific info */
switch(codec->codec_type) {
case AVMEDIA_TYPE_VIDEO:
avio_wb32(pb, codec->time_base.num);
avio_wb32(pb, codec->time_base.den);
avio_wb16(pb, codec->width);
avio_wb16(pb, codec->height);
avio_wb16(pb, codec->gop_size);
avio_wb32(pb, codec->pix_fmt);
avio_w8(pb, codec->qmin);
avio_w8(pb, codec->qmax);
avio_w8(pb, codec->max_qdiff);
avio_wb16(pb, (int) (codec->qcompress * 10000.0));
avio_wb16(pb, (int) (codec->qblur * 10000.0));
avio_wb32(pb, codec->bit_rate_tolerance);
avio_put_str(pb, codec->rc_eq ? codec->rc_eq : "tex^qComp");
avio_wb32(pb, codec->rc_max_rate);
avio_wb32(pb, codec->rc_min_rate);
avio_wb32(pb, codec->rc_buffer_size);
avio_wb64(pb, av_double2int(codec->i_quant_factor));
avio_wb64(pb, av_double2int(codec->b_quant_factor));
avio_wb64(pb, av_double2int(codec->i_quant_offset));
avio_wb64(pb, av_double2int(codec->b_quant_offset));
avio_wb32(pb, codec->dct_algo);
avio_wb32(pb, codec->strict_std_compliance);
avio_wb32(pb, codec->max_b_frames);
avio_wb32(pb, codec->mpeg_quant);
avio_wb32(pb, codec->intra_dc_precision);
avio_wb32(pb, codec->me_method);
avio_wb32(pb, codec->mb_decision);
avio_wb32(pb, codec->nsse_weight);
avio_wb32(pb, codec->frame_skip_cmp);
avio_wb64(pb, av_double2int(codec->rc_buffer_aggressivity));
avio_wb32(pb, codec->codec_tag);
avio_w8(pb, codec->thread_count);
avio_wb32(pb, codec->coder_type);
avio_wb32(pb, codec->me_cmp);
avio_wb32(pb, codec->me_subpel_quality);
avio_wb32(pb, codec->me_range);
avio_wb32(pb, codec->keyint_min);
avio_wb32(pb, codec->scenechange_threshold);
avio_wb32(pb, codec->b_frame_strategy);
avio_wb64(pb, av_double2int(codec->qcompress));
avio_wb64(pb, av_double2int(codec->qblur));
avio_wb32(pb, codec->max_qdiff);
avio_wb32(pb, codec->refs);
break;
case AVMEDIA_TYPE_AUDIO:
avio_wb32(pb, codec->sample_rate);
avio_wl16(pb, codec->channels);
avio_wl16(pb, codec->frame_size);
avio_wl16(pb, codec->sample_fmt);
break;
default:
return -1;
}
if (codec->flags & CODEC_FLAG_GLOBAL_HEADER) {
avio_wb32(pb, codec->extradata_size);
avio_write(pb, codec->extradata, codec->extradata_size);
}
}
/* flush until end of block reached */
while ((avio_tell(pb) % ffm->packet_size) != 0)
avio_w8(pb, 0);
avio_flush(pb);
/* init packet mux */
ffm->packet_ptr = ffm->packet;
ffm->packet_end = ffm->packet + ffm->packet_size - FFM_HEADER_SIZE;
assert(ffm->packet_end >= ffm->packet);
ffm->frame_offset = 0;
ffm->dts = 0;
ffm->first_packet = 1;
return 0;
}
static int swf_write_header(AVFormatContext *s)
{
SWFContext *swf = s->priv_data;
AVIOContext *pb = s->pb;
PutBitContext p;
uint8_t buf1[256];
int i, width, height, rate, rate_base;
int version;
swf->sound_samples = 0;
swf->swf_frame_number = 0;
swf->video_frame_number = 0;
for(i=0;i<s->nb_streams;i++) {
AVCodecContext *enc = s->streams[i]->codec;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
if (enc->codec_id == AV_CODEC_ID_MP3) {
swf->audio_enc = enc;
swf->audio_fifo= av_fifo_alloc(AUDIO_FIFO_SIZE);
if (!swf->audio_fifo)
return AVERROR(ENOMEM);
} else {
av_log(s, AV_LOG_ERROR, "SWF muxer only supports MP3\n");
return -1;
}
} else {
if (enc->codec_id == AV_CODEC_ID_VP6F ||
enc->codec_id == AV_CODEC_ID_FLV1 ||
enc->codec_id == AV_CODEC_ID_MJPEG) {
swf->video_enc = enc;
} else {
av_log(s, AV_LOG_ERROR, "SWF muxer only supports VP6, FLV1 and MJPEG\n");
return -1;
}
}
}
if (!swf->video_enc) {
/* currently, cannot work correctly if audio only */
width = 320;
height = 200;
rate = 10;
rate_base= 1;
} else {
width = swf->video_enc->width;
height = swf->video_enc->height;
rate = swf->video_enc->time_base.den;
rate_base = swf->video_enc->time_base.num;
}
if (!swf->audio_enc)
swf->samples_per_frame = (44100. * rate_base) / rate;
else
swf->samples_per_frame = (swf->audio_enc->sample_rate * rate_base) / rate;
avio_write(pb, "FWS", 3);
if (!strcmp("avm2", s->oformat->name))
version = 9;
else if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_VP6F)
version = 8; /* version 8 and above support VP6 codec */
else if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_FLV1)
version = 6; /* version 6 and above support FLV1 codec */
else
version = 4; /* version 4 for mpeg audio support */
avio_w8(pb, version);
avio_wl32(pb, DUMMY_FILE_SIZE); /* dummy size
(will be patched if not streamed) */
put_swf_rect(pb, 0, width * 20, 0, height * 20);
avio_wl16(pb, (rate * 256) / rate_base); /* frame rate */
swf->duration_pos = avio_tell(pb);
avio_wl16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */
/* avm2/swf v9 (also v8?) files require a file attribute tag */
if (version == 9) {
put_swf_tag(s, TAG_FILEATTRIBUTES);
avio_wl32(pb, 1<<3); /* set ActionScript v3/AVM2 flag */
put_swf_end_tag(s);
}
/* define a shape with the jpeg inside */
if (swf->video_enc && swf->video_enc->codec_id == AV_CODEC_ID_MJPEG) {
put_swf_tag(s, TAG_DEFINESHAPE);
avio_wl16(pb, SHAPE_ID); /* ID of shape */
/* bounding rectangle */
put_swf_rect(pb, 0, width, 0, height);
/* style info */
avio_w8(pb, 1); /* one fill style */
avio_w8(pb, 0x41); /* clipped bitmap fill */
avio_wl16(pb, BITMAP_ID); /* bitmap ID */
/* position of the bitmap */
put_swf_matrix(pb, (int)(1.0 * (1 << FRAC_BITS)), 0,
0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0);
avio_w8(pb, 0); /* no line style */
/* shape drawing */
init_put_bits(&p, buf1, sizeof(buf1));
put_bits(&p, 4, 1); /* one fill bit */
put_bits(&p, 4, 0); /* zero line bit */
put_bits(&p, 1, 0); /* not an edge */
put_bits(&p, 5, FLAG_MOVETO | FLAG_SETFILL0);
put_bits(&p, 5, 1); /* nbits */
put_bits(&p, 1, 0); /* X */
put_bits(&p, 1, 0); /* Y */
put_bits(&p, 1, 1); /* set fill style 1 */
/* draw the rectangle ! */
put_swf_line_edge(&p, width, 0);
put_swf_line_edge(&p, 0, height);
put_swf_line_edge(&p, -width, 0);
put_swf_line_edge(&p, 0, -height);
/* end of shape */
put_bits(&p, 1, 0); /* not an edge */
put_bits(&p, 5, 0);
flush_put_bits(&p);
avio_write(pb, buf1, put_bits_ptr(&p) - p.buf);
put_swf_end_tag(s);
}
if (swf->audio_enc && swf->audio_enc->codec_id == AV_CODEC_ID_MP3) {
int v = 0;
/* start sound */
put_swf_tag(s, TAG_STREAMHEAD2);
switch(swf->audio_enc->sample_rate) {
case 11025: v |= 1 << 2; break;
case 22050: v |= 2 << 2; break;
case 44100: v |= 3 << 2; break;
default:
/* not supported */
av_log(s, AV_LOG_ERROR, "swf does not support that sample rate, choose from (44100, 22050, 11025).\n");
return -1;
}
v |= 0x02; /* 16 bit playback */
if (swf->audio_enc->channels == 2)
v |= 0x01; /* stereo playback */
avio_w8(s->pb, v);
v |= 0x20; /* mp3 compressed */
avio_w8(s->pb, v);
avio_wl16(s->pb, swf->samples_per_frame); /* avg samples per frame */
avio_wl16(s->pb, 0);
put_swf_end_tag(s);
}
avio_flush(s->pb);
return 0;
}
/* write the header (used two times if non streamed) */
static int asf_write_header1(AVFormatContext *s, int64_t file_size,
int64_t data_chunk_size)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = s->pb;
AVDictionaryEntry *tags[5];
int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
int has_title, has_aspect_ratio = 0;
int metadata_count;
AVCodecContext *enc;
int64_t header_offset, cur_pos, hpos;
int bit_rate;
int64_t duration;
ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);
tags[0] = av_dict_get(s->metadata, "title", NULL, 0);
tags[1] = av_dict_get(s->metadata, "author", NULL, 0);
tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
tags[3] = av_dict_get(s->metadata, "comment", NULL, 0);
tags[4] = av_dict_get(s->metadata, "rating", NULL, 0);
duration = asf->duration + PREROLL_TIME * 10000;
has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
metadata_count = av_dict_count(s->metadata);
bit_rate = 0;
for (n = 0; n < s->nb_streams; n++) {
enc = s->streams[n]->codec;
avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
bit_rate += enc->bit_rate;
if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
&& enc->sample_aspect_ratio.num > 0
&& enc->sample_aspect_ratio.den > 0)
has_aspect_ratio++;
}
if (asf->is_streamed) {
put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
}
ff_put_guid(pb, &ff_asf_header);
avio_wl64(pb, -1); /* header length, will be patched after */
avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
avio_w8(pb, 1); /* ??? */
avio_w8(pb, 2); /* ??? */
/* file header */
header_offset = avio_tell(pb);
hpos = put_header(pb, &ff_asf_file_header);
ff_put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, file_size);
file_time = 0;
avio_wl64(pb, unix_to_file_time(file_time));
avio_wl64(pb, asf->nb_packets); /* number of packets */
avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
avio_wl64(pb, PREROLL_TIME); /* start time stamp */
avio_wl32(pb, (asf->is_streamed || !pb->seekable) ? 3 : 2); /* ??? */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, bit_rate ? bit_rate : -1); /* Maximum data rate in bps */
end_header(pb, hpos);
/* unknown headers */
hpos = put_header(pb, &ff_asf_head1_guid);
ff_put_guid(pb, &ff_asf_head2_guid);
avio_wl16(pb, 6);
if (has_aspect_ratio) {
int64_t hpos2;
avio_wl32(pb, 26 + has_aspect_ratio * 84);
hpos2 = put_header(pb, &ff_asf_metadata_header);
avio_wl16(pb, 2 * has_aspect_ratio);
for (n = 0; n < s->nb_streams; n++) {
enc = s->streams[n]->codec;
if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
&& enc->sample_aspect_ratio.num > 0
&& enc->sample_aspect_ratio.den > 0) {
AVRational sar = enc->sample_aspect_ratio;
avio_wl16(pb, 0);
// the stream number is set like this below
avio_wl16(pb, n + 1);
avio_wl16(pb, 26); // name_len
avio_wl16(pb, 3); // value_type
avio_wl32(pb, 4); // value_len
avio_put_str16le(pb, "AspectRatioX");
avio_wl32(pb, sar.num);
avio_wl16(pb, 0);
// the stream number is set like this below
avio_wl16(pb, n + 1);
avio_wl16(pb, 26); // name_len
avio_wl16(pb, 3); // value_type
avio_wl32(pb, 4); // value_len
avio_put_str16le(pb, "AspectRatioY");
avio_wl32(pb, sar.den);
}
}
end_header(pb, hpos2);
} else {
avio_wl32(pb, 0);
}
end_header(pb, hpos);
/* title and other infos */
if (has_title) {
int len;
uint8_t *buf;
AVIOContext *dyn_buf;
if (avio_open_dyn_buf(&dyn_buf) < 0)
return AVERROR(ENOMEM);
hpos = put_header(pb, &ff_asf_comment_header);
for (n = 0; n < FF_ARRAY_ELEMS(tags); n++) {
len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;
avio_wl16(pb, len);
}
len = avio_close_dyn_buf(dyn_buf, &buf);
avio_write(pb, buf, len);
av_freep(&buf);
end_header(pb, hpos);
}
if (metadata_count) {
AVDictionaryEntry *tag = NULL;
hpos = put_header(pb, &ff_asf_extended_content_header);
avio_wl16(pb, metadata_count);
while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
put_str16(pb, tag->key);
avio_wl16(pb, 0);
put_str16(pb, tag->value);
}
end_header(pb, hpos);
}
/* chapters using ASF markers */
if (!asf->is_streamed && s->nb_chapters) {
int ret;
if ((ret = asf_write_markers(s)) < 0)
return ret;
}
/* stream headers */
for (n = 0; n < s->nb_streams; n++) {
int64_t es_pos;
// ASFStream *stream = &asf->streams[n];
enc = s->streams[n]->codec;
asf->streams[n].num = n + 1;
asf->streams[n].seq = 1;
switch (enc->codec_type) {
case AVMEDIA_TYPE_AUDIO:
wav_extra_size = 0;
extra_size = 18 + wav_extra_size;
extra_size2 = 8;
break;
default:
case AVMEDIA_TYPE_VIDEO:
wav_extra_size = enc->extradata_size;
extra_size = 0x33 + wav_extra_size;
extra_size2 = 0;
break;
}
hpos = put_header(pb, &ff_asf_stream_header);
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
ff_put_guid(pb, &ff_asf_audio_stream);
ff_put_guid(pb, &ff_asf_audio_conceal_spread);
} else {
ff_put_guid(pb, &ff_asf_video_stream);
ff_put_guid(pb, &ff_asf_video_conceal_none);
}
avio_wl64(pb, 0); /* ??? */
es_pos = avio_tell(pb);
avio_wl32(pb, extra_size); /* wav header len */
avio_wl32(pb, extra_size2); /* additional data len */
avio_wl16(pb, n + 1); /* stream number */
avio_wl32(pb, 0); /* ??? */
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
/* WAVEFORMATEX header */
int wavsize = ff_put_wav_header(pb, enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);
if (wavsize < 0)
return -1;
if (wavsize != extra_size) {
cur_pos = avio_tell(pb);
avio_seek(pb, es_pos, SEEK_SET);
avio_wl32(pb, wavsize); /* wav header len */
avio_seek(pb, cur_pos, SEEK_SET);
}
/* ERROR Correction */
avio_w8(pb, 0x01);
if (enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align) {
avio_wl16(pb, 0x0190);
avio_wl16(pb, 0x0190);
} else {
avio_wl16(pb, enc->block_align);
avio_wl16(pb, enc->block_align);
}
avio_wl16(pb, 0x01);
avio_w8(pb, 0x00);
} else {
avio_wl32(pb, enc->width);
avio_wl32(pb, enc->height);
avio_w8(pb, 2); /* ??? */
avio_wl16(pb, 40 + enc->extradata_size); /* size */
/* BITMAPINFOHEADER header */
ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 1, 0);
}
end_header(pb, hpos);
}
/* media comments */
hpos = put_header(pb, &ff_asf_codec_comment_header);
ff_put_guid(pb, &ff_asf_codec_comment1_header);
avio_wl32(pb, s->nb_streams);
for (n = 0; n < s->nb_streams; n++) {
const AVCodecDescriptor *codec_desc;
const char *desc;
enc = s->streams[n]->codec;
codec_desc = avcodec_descriptor_get(enc->codec_id);
if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wl16(pb, 2);
else if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
avio_wl16(pb, 1);
else
avio_wl16(pb, -1);
if (enc->codec_id == AV_CODEC_ID_WMAV2)
desc = "Windows Media Audio V8";
else
desc = codec_desc ? codec_desc->name : NULL;
if (desc) {
AVIOContext *dyn_buf;
uint8_t *buf;
int len;
if (avio_open_dyn_buf(&dyn_buf) < 0)
return AVERROR(ENOMEM);
avio_put_str16le(dyn_buf, desc);
len = avio_close_dyn_buf(dyn_buf, &buf);
avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
avio_write(pb, buf, len);
av_freep(&buf);
} else
avio_wl16(pb, 0);
avio_wl16(pb, 0); /* no parameters */
/* id */
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avio_wl16(pb, 2);
avio_wl16(pb, enc->codec_tag);
} else {
avio_wl16(pb, 4);
avio_wl32(pb, enc->codec_tag);
}
if (!enc->codec_tag)
return -1;
}
end_header(pb, hpos);
/* patch the header size fields */
cur_pos = avio_tell(pb);
header_size = cur_pos - header_offset;
if (asf->is_streamed) {
header_size += 8 + 30 + DATA_HEADER_SIZE;
avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
avio_wl16(pb, header_size);
avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
avio_wl16(pb, header_size);
header_size -= 8 + 30 + DATA_HEADER_SIZE;
}
header_size += 24 + 6;
avio_seek(pb, header_offset - 14, SEEK_SET);
avio_wl64(pb, header_size);
avio_seek(pb, cur_pos, SEEK_SET);
/* movie chunk, followed by packets of packet_size */
asf->data_offset = cur_pos;
ff_put_guid(pb, &ff_asf_data_header);
avio_wl64(pb, data_chunk_size);
ff_put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, asf->nb_packets); /* nb packets */
avio_w8(pb, 1); /* ??? */
avio_w8(pb, 1); /* ??? */
return 0;
}
/* returns the size or -1 on error */
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
{
int bps, blkalign, bytespersec, frame_size;
int hdrsize = 18;
int waveformatextensible;
uint8_t temp[256];
uint8_t *riff_extradata= temp;
uint8_t *riff_extradata_start= temp;
if(!enc->codec_tag || enc->codec_tag > 0xffff)
return -1;
/* We use the known constant frame size for the codec if known, otherwise
fallback to using AVCodecContext.frame_size, which is not as reliable
for indicating packet duration */
frame_size = av_get_audio_frame_duration(enc, 0);
if (!frame_size)
frame_size = enc->frame_size;
waveformatextensible = (enc->channels > 2 && enc->channel_layout)
|| enc->sample_rate > 48000
|| av_get_bits_per_sample(enc->codec_id) > 16;
if (waveformatextensible) {
avio_wl16(pb, 0xfffe);
} else {
avio_wl16(pb, enc->codec_tag);
}
avio_wl16(pb, enc->channels);
avio_wl32(pb, enc->sample_rate);
if (enc->codec_id == AV_CODEC_ID_MP2 || enc->codec_id == AV_CODEC_ID_MP3 || enc->codec_id == AV_CODEC_ID_GSM_MS) {
bps = 0;
} else {
if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
if (enc->bits_per_coded_sample)
bps = enc->bits_per_coded_sample;
else
bps = 16; // default to 16
}
}
if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
}
if (enc->codec_id == AV_CODEC_ID_MP2 || enc->codec_id == AV_CODEC_ID_MP3) {
/* this is wrong, but it seems many demuxers do not work if this is set
correctly */
blkalign = frame_size;
//blkalign = 144 * enc->bit_rate/enc->sample_rate;
} else if (enc->codec_id == AV_CODEC_ID_AC3) {
blkalign = 3840; //maximum bytes per frame
} else if (enc->block_align != 0) { /* specified by the codec */
blkalign = enc->block_align;
} else
blkalign = bps * enc->channels / av_gcd(8, bps);
if (enc->codec_id == AV_CODEC_ID_PCM_U8 ||
enc->codec_id == AV_CODEC_ID_PCM_S24LE ||
enc->codec_id == AV_CODEC_ID_PCM_S32LE ||
enc->codec_id == AV_CODEC_ID_PCM_F32LE ||
enc->codec_id == AV_CODEC_ID_PCM_F64LE ||
enc->codec_id == AV_CODEC_ID_PCM_S16LE) {
bytespersec = enc->sample_rate * blkalign;
} else {
bytespersec = enc->bit_rate / 8;
}
avio_wl32(pb, bytespersec); /* bytes per second */
avio_wl16(pb, blkalign); /* block align */
avio_wl16(pb, bps); /* bits per sample */
if (enc->codec_id == AV_CODEC_ID_MP3) {
hdrsize += 12;
bytestream_put_le16(&riff_extradata, 1); /* wID */
bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
} else if (enc->codec_id == AV_CODEC_ID_MP2) {
hdrsize += 22;
bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */
bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */
bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */
bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */
bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */
bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */
bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */
} else if (enc->codec_id == AV_CODEC_ID_GSM_MS || enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
hdrsize += 2;
bytestream_put_le16(&riff_extradata, frame_size); /* wSamplesPerBlock */
} else if(enc->extradata_size){
riff_extradata_start= enc->extradata;
riff_extradata= enc->extradata + enc->extradata_size;
hdrsize += enc->extradata_size;
}
if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */
hdrsize += 22;
avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */
avio_wl32(pb, enc->channel_layout); /* dwChannelMask */
avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */
avio_wl32(pb, 0x00100000);
avio_wl32(pb, 0xAA000080);
avio_wl32(pb, 0x719B3800);
} else {
avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
}
avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
if(hdrsize&1){
hdrsize++;
avio_w8(pb, 0);
}
return hdrsize;
}
static int caf_write_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[0]->codec;
CAFContext *caf = s->priv_data;
AVDictionaryEntry *t = NULL;
unsigned int codec_tag = ff_codec_get_tag(ff_codec_caf_tags, enc->codec_id);
int64_t chunk_size = 0;
switch (enc->codec_id) {
case AV_CODEC_ID_AAC:
case AV_CODEC_ID_AC3:
av_log(s, AV_LOG_ERROR, "muxing codec currently unsupported\n");
return AVERROR_PATCHWELCOME;
}
switch (enc->codec_id) {
case AV_CODEC_ID_PCM_S8:
case AV_CODEC_ID_PCM_S16LE:
case AV_CODEC_ID_PCM_S16BE:
case AV_CODEC_ID_PCM_S24LE:
case AV_CODEC_ID_PCM_S24BE:
case AV_CODEC_ID_PCM_S32LE:
case AV_CODEC_ID_PCM_S32BE:
case AV_CODEC_ID_PCM_F32LE:
case AV_CODEC_ID_PCM_F32BE:
case AV_CODEC_ID_PCM_F64LE:
case AV_CODEC_ID_PCM_F64BE:
case AV_CODEC_ID_PCM_ALAW:
case AV_CODEC_ID_PCM_MULAW:
codec_tag = MKTAG('l','p','c','m');
}
if (!codec_tag) {
av_log(s, AV_LOG_ERROR, "unsupported codec\n");
return AVERROR_INVALIDDATA;
}
if (!enc->block_align && !pb->seekable) {
av_log(s, AV_LOG_ERROR, "Muxing variable packet size not supported on non seekable output\n");
return AVERROR_INVALIDDATA;
}
ffio_wfourcc(pb, "caff"); //< mFileType
avio_wb16(pb, 1); //< mFileVersion
avio_wb16(pb, 0); //< mFileFlags
ffio_wfourcc(pb, "desc"); //< Audio Description chunk
avio_wb64(pb, 32); //< mChunkSize
avio_wb64(pb, av_double2int(enc->sample_rate)); //< mSampleRate
avio_wl32(pb, codec_tag); //< mFormatID
avio_wb32(pb, codec_flags(enc->codec_id)); //< mFormatFlags
avio_wb32(pb, enc->block_align); //< mBytesPerPacket
avio_wb32(pb, samples_per_packet(enc->codec_id, enc->channels)); //< mFramesPerPacket
avio_wb32(pb, enc->channels); //< mChannelsPerFrame
avio_wb32(pb, av_get_bits_per_sample(enc->codec_id)); //< mBitsPerChannel
if (enc->channel_layout) {
ffio_wfourcc(pb, "chan");
avio_wb64(pb, 12);
ff_mov_write_chan(pb, enc->channel_layout);
}
if (enc->codec_id == AV_CODEC_ID_ALAC) {
ffio_wfourcc(pb, "kuki");
avio_wb64(pb, 12 + enc->extradata_size);
avio_write(pb, "\0\0\0\14frmaalac", 12);
avio_write(pb, enc->extradata, enc->extradata_size);
} else if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
ffio_wfourcc(pb, "kuki");
avio_wb64(pb, 29);
avio_write(pb, "\0\0\0\14frmasamr", 12);
avio_wb32(pb, 0x11); /* size */
avio_write(pb, "samrFFMP", 8);
avio_w8(pb, 0); /* decoder version */
avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
avio_w8(pb, 0x00); /* Mode change period (no restriction) */
avio_w8(pb, 0x01); /* Frames per sample */
} else if (enc->codec_id == AV_CODEC_ID_QDM2) {
ffio_wfourcc(pb, "kuki");
avio_wb64(pb, enc->extradata_size);
avio_write(pb, enc->extradata, enc->extradata_size);
}
if (av_dict_count(s->metadata)) {
ffio_wfourcc(pb, "info"); //< Information chunk
while ((t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX))) {
chunk_size += strlen(t->key) + strlen(t->value) + 2;
}
avio_wb64(pb, chunk_size + 4);
avio_wb32(pb, av_dict_count(s->metadata));
t = NULL;
while ((t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX))) {
avio_put_str(pb, t->key);
avio_put_str(pb, t->value);
}
}
ffio_wfourcc(pb, "data"); //< Audio Data chunk
caf->data = avio_tell(pb);
avio_wb64(pb, -1); //< mChunkSize
avio_wb32(pb, 0); //< mEditCount
avio_flush(pb);
return 0;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
unsigned char tag[5];
unsigned int flags=0;
const int stream_index= pkt->stream_index;
AVIStream *avist= s->streams[stream_index]->priv_data;
AVCodecContext *enc= s->streams[stream_index]->codec;
int size= pkt->size;
av_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(pkt->dts), avist->packet_count, stream_index);
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avist->packet_count && enc->codec_id != AV_CODEC_ID_XSUB){
AVPacket empty_packet;
if(pkt->dts - avist->packet_count > 60000){
av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", pkt->dts - avist->packet_count);
return AVERROR(EINVAL);
}
av_init_packet(&empty_packet);
empty_packet.size= 0;
empty_packet.data= NULL;
empty_packet.stream_index= stream_index;
avi_write_packet(s, &empty_packet);
av_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(pkt->dts), avist->packet_count);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if(pkt->flags&AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avist->audio_strm_length += size;
}
if (s->pb->seekable) {
AVIIndex* idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
idx->cluster = av_realloc_f(idx->cluster, sizeof(void*), cl+1);
if (!idx->cluster)
return AVERROR(ENOMEM);
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
if (!idx->cluster[cl])
return AVERROR(ENOMEM);
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
return 0;
}
static void put_videoinfoheader2(AVIOContext *pb, AVStream *st)
{
AVRational dar = av_mul_q(st->sample_aspect_ratio, (AVRational){st->codec->width, st->codec->height});
unsigned int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFFFFFF);
/* VIDEOINFOHEADER2 */
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, st->codec->width);
avio_wl32(pb, st->codec->height);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, st->codec->bit_rate);
avio_wl32(pb, 0);
avio_wl64(pb, st->avg_frame_rate.num && st->avg_frame_rate.den ? INT64_C(10000000) / av_q2d(st->avg_frame_rate) : 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, num);
avio_wl32(pb, den);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
ff_put_bmp_header(pb, st->codec, ff_codec_bmp_tags, 0, 1);
if (st->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
int padding = (st->codec->extradata_size & 3) ? 4 - (st->codec->extradata_size & 3) : 0;
/* MPEG2VIDEOINFO */
avio_wl32(pb, 0);
avio_wl32(pb, st->codec->extradata_size + padding);
avio_wl32(pb, -1);
avio_wl32(pb, -1);
avio_wl32(pb, 0);
avio_write(pb, st->codec->extradata, st->codec->extradata_size);
ffio_fill(pb, 0, padding);
}
}
