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31 fprintf(stderr,
"%s -out foo.mpd file1\n", argv0);
88 while (!
f->eof_reached) {
120 int err = 0,
i, orig_tracks = tracks->
nb_tracks;
121 char errbuf[50], *ptr;
127 fprintf(stderr,
"Unable to open %s: %s\n", file, errbuf);
134 fprintf(stderr,
"Unable to identify %s: %s\n", file, errbuf);
139 fprintf(stderr,
"No streams found in %s\n", file);
150 fprintf(stderr,
"Skipping track %d in %s as it has zero bitrate\n",
171 if ((ptr = strrchr(file,
'/')))
172 track->
name = ptr + 1;
183 "Track %d in %s is neither video nor audio, skipping\n",
208 err =
find_sidx(tracks, orig_tracks, file);
220 int minutes = seconds / 60;
221 int hours = minutes / 60;
227 fprintf(
out,
"%dH", hours);
228 if (hours || minutes)
229 fprintf(
out,
"%dM", minutes);
230 fprintf(
out,
"%d.%0*dS", seconds, decimals, fractions);
237 struct Track **adaptation_sets_buf[2] = {
NULL };
238 struct Track ***adaptation_sets;
239 int nb_tracks_buf[2] = { 0 };
244 adaptation_sets = adaptation_sets_buf;
245 nb_tracks = nb_tracks_buf;
247 for (
i = 0;
i < 2;
i++) {
249 if (!adaptation_sets[
i]) {
262 adaptation_sets[set_index][nb_tracks[set_index]++] = tracks->
tracks[
i];
265 adaptation_sets = &tracks->
tracks;
270 out = fopen(filename,
"w");
276 fprintf(
out,
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
277 fprintf(
out,
"<MPD xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
278 "\txmlns=\"urn:mpeg:dash:schema:mpd:2011\"\n"
279 "\txmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
280 "\txsi:schemaLocation=\"urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd\"\n"
281 "\tprofiles=\"urn:mpeg:dash:profile:isoff-on-demand:2011\"\n"
282 "\ttype=\"static\"\n");
283 fprintf(
out,
"\tmediaPresentationDuration=\"");
285 fprintf(
out,
"\"\n");
286 fprintf(
out,
"\tminBufferTime=\"PT5S\">\n");
288 fprintf(
out,
"\t<Period start=\"PT0.0S\">\n");
291 if (nb_tracks[
set] == 0)
293 fprintf(
out,
"\t\t<AdaptationSet segmentAlignment=\"true\">\n");
295 for (
i = 0;
i < nb_tracks[
set];
i++) {
296 struct Track *track = adaptation_sets[
set][
i];
297 if (strcmp(track->
name, adaptation_sets[
set][0]->
name))
299 fprintf(
out,
"\t\t\t<ContentComponent id=\"%d\" contentType=\"%s\" />\n", track->
track_id, track->
is_audio ?
"audio" :
"video");
303 for (
i = 0;
i < nb_tracks[
set]; ) {
304 struct Track *first_track = adaptation_sets[
set][
i];
306 fprintf(
out,
"\t\t\t<Representation id=\"%d\" codecs=\"",
i);
307 for (j =
i; j < nb_tracks[
set]; j++) {
308 struct Track *track = adaptation_sets[
set][j];
309 if (strcmp(track->
name, first_track->
name))
324 fprintf(
out,
"\" mimeType=\"%s/mp4\" bandwidth=\"%d\"",
332 fprintf(
out,
"\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n",
channels);
333 fprintf(
out,
"\t\t\t\t<BaseURL>%s</BaseURL>\n", first_track->
name);
335 fprintf(
out,
"\t\t\t</Representation>\n");
338 fprintf(
out,
"\t\t</AdaptationSet>\n");
340 fprintf(
out,
"\t</Period>\n");
341 fprintf(
out,
"</MPD>\n");
345 for (
i = 0;
i < 2;
i++)
360 int main(
int argc,
char **argv)
366 for (
i = 1;
i < argc;
i++) {
367 if (!strcmp(argv[
i],
"-out")) {
370 }
else if (argv[
i][0] ==
'-') {
371 return usage(argv[0], 1);
378 return usage(argv[0], 1);
static void set_codec_str(AVCodecParameters *codecpar, char *str, int size)
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
enum AVMediaType codec_type
General type of the encoded data.
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
This struct describes the properties of an encoded stream.
static int handle_file(struct Tracks *tracks, const char *file)
AVStream ** streams
A list of all streams in the file.
AVRounding
Rounding methods.
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
int avio_open2(AVIOContext **s, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options)
Create and initialize a AVIOContext for accessing the resource indicated by url.
int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
Put a description of the AVERROR code errnum in errbuf.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
static int usage(const char *argv0, int ret)
@ AV_ROUND_UP
Round toward +infinity.
static void clean_tracks(struct Tracks *tracks)
static int find_sidx(struct Tracks *tracks, int start_index, const char *file)
int64_t duration
Decoding: duration of the stream, in stream time base.
unsigned int avio_rb32(AVIOContext *s)
static void set(uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v)
int avformat_open_input(AVFormatContext **ps, const char *url, const AVInputFormat *fmt, AVDictionary **options)
Open an input stream and read the header.
static void write_time(FILE *out, int64_t time, int decimals, enum AVRounding round)
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
AVCodecParameters * codecpar
Codec parameters associated with this stream.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
int sample_rate
Audio only.
int extradata_size
Size of the extradata content in bytes.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
int multiple_tracks_per_file
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
Read packets of a media file to get stream information.
#define MKBETAG(a, b, c, d)
#define i(width, name, range_min, range_max)
static av_always_inline av_const double round(double x)
#define AV_TIME_BASE
Internal time base represented as integer.
#define av_malloc_array(a, b)
@ AV_ROUND_DOWN
Round toward -infinity.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
int id
Format-specific stream ID.
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
static int output_mpd(struct Tracks *tracks, const char *filename)
int main(int argc, char **argv)
#define AVIO_FLAG_READ
read-only
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16