Merge commit '7295b7373862ee54903b33d6ef3335531dfa93ad'
* commit '7295b7373862ee54903b33d6ef3335531dfa93ad': dashenc: add webm support Merged-by: Rodger Combs <rodger.combs@gmail.com>
This commit is contained in:
Rodger Combs
James Almer
commit
1b8ef01f04
@ -61,6 +61,7 @@ typedef struct OutputStream {
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AVFormatContext *ctx;
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int ctx_inited, as_idx;
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AVIOContext *out;
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char format_name[8];
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int packets_written;
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char initfile[1024];
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int64_t init_start_pos, pos;
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@ -101,12 +102,32 @@ typedef struct DASHContext {
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const char *utc_timing_url;
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} DASHContext;
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// RFC 6381
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static struct codec_string {
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int id;
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const char *str;
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} codecs[] = {
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{ AV_CODEC_ID_VP8, "vp8" },
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{ AV_CODEC_ID_VP9, "vp9" },
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{ AV_CODEC_ID_VORBIS, "vorbis" },
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{ AV_CODEC_ID_OPUS, "opus" },
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{ 0, NULL }
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};
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static void set_codec_str(AVFormatContext *s, AVCodecParameters *par,
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char *str, int size)
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{
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const AVCodecTag *tags[2] = { NULL, NULL };
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uint32_t tag;
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int i;
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// common Webm codecs are not part of RFC 6381
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for (i = 0; codecs[i].id; i++)
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if (codecs[i].id == par->codec_id) {
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av_strlcpy(str, codecs[i].str, size);
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return;
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}
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// for codecs part of RFC 6381
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if (par->codec_type == AVMEDIA_TYPE_VIDEO)
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tags[0] = ff_codec_movvideo_tags;
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else if (par->codec_type == AVMEDIA_TYPE_AUDIO)
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@ -189,6 +210,21 @@ static int flush_dynbuf(OutputStream *os, int *range_length)
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return avio_open_dyn_buf(&os->ctx->pb);
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}
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static int flush_init_segment(AVFormatContext *s, OutputStream *os)
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{
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DASHContext *c = s->priv_data;
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int ret, range_length;
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ret = flush_dynbuf(os, &range_length);
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if (ret < 0)
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return ret;
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os->pos = os->init_range_length = range_length;
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if (!c->single_file)
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ff_format_io_close(s, &os->out);
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return 0;
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}
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static void dash_free(AVFormatContext *s)
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{
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DASHContext *c = s->priv_data;
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@ -376,14 +412,14 @@ static int write_adaptation_set(AVFormatContext *s, AVIOContext *out, int as_ind
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if (as->media_type == AVMEDIA_TYPE_VIDEO) {
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AVStream *st = s->streams[i];
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avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/mp4\" codecs=\"%s\"%s width=\"%d\" height=\"%d\"",
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i, os->codec_str, os->bandwidth_str, s->streams[i]->codecpar->width, s->streams[i]->codecpar->height);
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avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/%s\" codecs=\"%s\"%s width=\"%d\" height=\"%d\"",
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i, os->format_name, os->codec_str, os->bandwidth_str, s->streams[i]->codecpar->width, s->streams[i]->codecpar->height);
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if (st->avg_frame_rate.num)
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avio_printf(out, " frameRate=\"%d/%d\"", st->avg_frame_rate.num, st->avg_frame_rate.den);
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avio_printf(out, ">\n");
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} else {
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avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/mp4\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n",
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i, os->codec_str, os->bandwidth_str, s->streams[i]->codecpar->sample_rate);
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avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/%s\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n",
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i, os->format_name, os->codec_str, os->bandwidth_str, s->streams[i]->codecpar->sample_rate);
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avio_printf(out, "\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n",
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s->streams[i]->codecpar->channels);
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}
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@ -628,11 +664,18 @@ static int dict_copy_entry(AVDictionary **dst, const AVDictionary *src, const ch
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return 0;
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}
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static int dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
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{
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char valuestr[22];
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snprintf(valuestr, sizeof(valuestr), "%"PRId64, value);
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flags &= ~AV_DICT_DONT_STRDUP_VAL;
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return av_dict_set(pm, key, valuestr, flags);
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}
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static int dash_init(AVFormatContext *s)
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{
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DASHContext *c = s->priv_data;
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int ret = 0, i;
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AVOutputFormat *oformat;
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char *ptr;
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char basename[1024];
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@ -656,10 +699,6 @@ static int dash_init(AVFormatContext *s)
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if (ptr)
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*ptr = '\0';
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oformat = av_guess_format("mp4", NULL, NULL);
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if (!oformat)
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return AVERROR_MUXER_NOT_FOUND;
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c->streams = av_mallocz(sizeof(*c->streams) * s->nb_streams);
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if (!c->streams)
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return AVERROR(ENOMEM);
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@ -694,8 +733,22 @@ static int dash_init(AVFormatContext *s)
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ctx = avformat_alloc_context();
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if (!ctx)
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return AVERROR(ENOMEM);
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// choose muxer based on codec: webm for VP8/9 and opus, mp4 otherwise
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// note: os->format_name is also used as part of the mimetype of the
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// representation, e.g. video/<format_name>
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if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VP8 ||
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s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VP9 ||
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s->streams[i]->codecpar->codec_id == AV_CODEC_ID_OPUS ||
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s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VORBIS) {
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snprintf(os->format_name, sizeof(os->format_name), "webm");
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} else {
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snprintf(os->format_name, sizeof(os->format_name), "mp4");
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}
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ctx->oformat = av_guess_format(os->format_name, NULL, NULL);
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if (!ctx->oformat)
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return AVERROR_MUXER_NOT_FOUND;
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os->ctx = ctx;
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ctx->oformat = oformat;
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ctx->interrupt_callback = s->interrupt_callback;
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ctx->opaque = s->opaque;
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ctx->io_close = s->io_close;
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@ -726,8 +779,13 @@ static int dash_init(AVFormatContext *s)
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return ret;
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os->init_start_pos = 0;
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av_dict_set(&opts, "movflags", "frag_custom+dash+delay_moov", 0);
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if ((ret = avformat_init_output(ctx, &opts)) < 0)
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if (!strcmp(os->format_name, "mp4")) {
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av_dict_set(&opts, "movflags", "frag_custom+dash+delay_moov", 0);
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} else {
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dict_set_int(&opts, "cluster_time_limit", c->min_seg_duration / 1000, 0);
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dict_set_int(&opts, "cluster_size_limit", 5 * 1024 * 1024, 0); // set a large cluster size limit
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}
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if ((ret = avformat_write_header(ctx, &opts)) < 0)
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return ret;
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os->ctx_inited = 1;
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avio_flush(ctx->pb);
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@ -735,6 +793,13 @@ static int dash_init(AVFormatContext *s)
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av_log(s, AV_LOG_VERBOSE, "Representation %d init segment will be written to: %s\n", i, filename);
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// Flush init segment
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// except for mp4, since delay_moov is set and the init segment
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// is then flushed after the first packets
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if (strcmp(os->format_name, "mp4")) {
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flush_init_segment(s, os);
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}
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s->streams[i]->time_base = st->time_base;
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// If the muxer wants to shift timestamps, request to have them shifted
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// already before being handed to this muxer, so we don't have mismatches
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@ -907,12 +972,7 @@ static int dash_flush(AVFormatContext *s, int final, int stream)
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}
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if (!os->init_range_length) {
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ret = flush_dynbuf(os, &range_length);
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if (ret < 0)
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break;
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os->pos = os->init_range_length = range_length;
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if (!c->single_file)
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ff_format_io_close(s, &os->out);
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flush_init_segment(s, os);
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}
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if (!c->single_file) {
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@ -922,7 +982,8 @@ static int dash_flush(AVFormatContext *s, int final, int stream)
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ret = s->io_open(s, &os->out, temp_path, AVIO_FLAG_WRITE, NULL);
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if (ret < 0)
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break;
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write_styp(os->ctx->pb);
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if (!strcmp(os->format_name, "mp4"))
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write_styp(os->ctx->pb);
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} else {
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snprintf(full_path, sizeof(full_path), "%s%s", c->dirname, os->initfile);
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}
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@ -33,7 +33,7 @@
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// Also please add any ticket numbers that you believe might be affected here
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#define LIBAVFORMAT_VERSION_MAJOR 57
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#define LIBAVFORMAT_VERSION_MINOR 82
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#define LIBAVFORMAT_VERSION_MICRO 101
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#define LIBAVFORMAT_VERSION_MICRO 102
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#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
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LIBAVFORMAT_VERSION_MINOR, \
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