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dashdemux: add support for range based segments
Use the mediaRange information and pass it to the uridownloader to correctly download only the segment ranges indicated in the MPD https://bugzilla.gnome.org/show_bug.cgi?id=702206
This commit is contained in:
Thiago Santos
parent
e76f3e95fd
commit
4f17112392
3 changed files with 43 additions and 43 deletions
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@ -1691,9 +1691,10 @@ gst_dash_demux_get_next_header (GstDashDemux * demux, guint stream_idx)
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gchar *initializationURL;
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gchar *next_header_uri;
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GstFragment *fragment;
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gint64 range_start, range_end;
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if (!gst_mpd_client_get_next_header (demux->client, &initializationURL,
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stream_idx))
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stream_idx, &range_start, &range_end))
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return NULL;
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if (strncmp (initializationURL, "http://", 7) != 0) {
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@ -1705,9 +1706,11 @@ gst_dash_demux_get_next_header (GstDashDemux * demux, guint stream_idx)
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next_header_uri = initializationURL;
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}
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GST_INFO_OBJECT (demux, "Fetching header %s", next_header_uri);
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GST_INFO_OBJECT (demux, "Fetching header %s %" G_GINT64_FORMAT "-%"
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G_GINT64_FORMAT, next_header_uri, range_start, range_end);
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fragment = gst_uri_downloader_fetch_uri (demux->downloader, next_header_uri);
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fragment = gst_uri_downloader_fetch_uri_with_range (demux->downloader,
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next_header_uri, range_start, range_end);
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g_free (next_header_uri);
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return fragment;
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@ -1883,22 +1886,25 @@ gst_dash_demux_get_next_fragment (GstDashDemux * demux)
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if (selected_stream) {
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guint stream_idx = selected_stream->index;
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GstBuffer *buffer;
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gint64 range_start, range_end;
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if (gst_mpd_client_get_next_fragment (demux->client,
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stream_idx, &discont, &next_fragment_uri, &duration, ×tamp)) {
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stream_idx, &discont, &next_fragment_uri, &range_start, &range_end,
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&duration, ×tamp)) {
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g_get_current_time (&start);
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GST_INFO_OBJECT (demux, "Next fragment for stream #%i", stream_idx);
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GST_INFO_OBJECT (demux,
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"Fetching next fragment %s ts:%" GST_TIME_FORMAT " dur:%"
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GST_TIME_FORMAT, next_fragment_uri, GST_TIME_ARGS (timestamp),
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GST_TIME_ARGS (duration));
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GST_TIME_FORMAT " Range:%" G_GINT64_FORMAT "-%" G_GINT64_FORMAT,
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next_fragment_uri, GST_TIME_ARGS (timestamp),
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GST_TIME_ARGS (duration), range_start, range_end);
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/* got a fragment to fetch, no end of period */
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end_of_period = FALSE;
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download = gst_uri_downloader_fetch_uri (demux->downloader,
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next_fragment_uri);
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download = gst_uri_downloader_fetch_uri_with_range (demux->downloader,
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next_fragment_uri, range_start, range_end);
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g_free (next_fragment_uri);
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if (download == NULL)
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@ -111,8 +111,6 @@ static int strncmp_ext (const char *s1, const char *s2);
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static GstStreamPeriod *gst_mpdparser_get_stream_period (GstMpdClient * client);
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static gchar *gst_mpdparser_parse_baseURL (GstMpdClient * client,
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GstActiveStream * stream, gchar ** query);
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static gchar *gst_mpdparser_get_segmentURL_for_range (gchar * url,
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GstRange * range);
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static gchar *gst_mpdparser_get_mediaURL (GstActiveStream * stream,
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GstSegmentURLNode * segmentURL);
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static gchar *gst_mpdparser_get_initializationURL (GstURLType *
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@ -1878,14 +1876,14 @@ gst_mpdparser_get_segment_base (GstPeriodNode * Period,
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if (Representation && Representation->SegmentList
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&& Representation->SegmentList->MultSegBaseType
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&& Representation->SegmentList->MultSegBaseType->SegBaseType
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&& Representation->SegmentList->MultSegBaseType->
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SegBaseType->Initialization) {
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&& Representation->SegmentList->MultSegBaseType->SegBaseType->
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Initialization) {
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SegmentBase = Representation->SegmentList->MultSegBaseType->SegBaseType;
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} else if (AdaptationSet && AdaptationSet->SegmentList
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&& AdaptationSet->SegmentList->MultSegBaseType
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&& AdaptationSet->SegmentList->MultSegBaseType->SegBaseType
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&& AdaptationSet->SegmentList->MultSegBaseType->
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SegBaseType->Initialization) {
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&& AdaptationSet->SegmentList->MultSegBaseType->SegBaseType->
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Initialization) {
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SegmentBase = AdaptationSet->SegmentList->MultSegBaseType->SegBaseType;
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} else if (Period && Period->SegmentList
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&& Period->SegmentList->MultSegBaseType
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@ -2352,25 +2350,6 @@ gst_mpdparser_free_active_stream (GstActiveStream * active_stream)
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}
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}
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static gchar *
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gst_mpdparser_get_segmentURL_for_range (gchar * url, GstRange * range)
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{
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gchar *segmentURL;
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if (range) {
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gchar *range_suffix;
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range_suffix =
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g_strdup_printf ("?range=%" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT,
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range->first_byte_pos, range->last_byte_pos);
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segmentURL = g_strconcat (url, range_suffix, NULL);
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g_free (range_suffix);
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} else {
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segmentURL = g_strdup (url);
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}
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return segmentURL;
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}
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static gchar *
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gst_mpdparser_get_mediaURL (GstActiveStream * stream,
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GstSegmentURLNode * segmentURL)
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@ -2383,8 +2362,7 @@ gst_mpdparser_get_mediaURL (GstActiveStream * stream,
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url_prefix = segmentURL->media ? segmentURL->media : stream->baseURL;
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g_return_val_if_fail (url_prefix != NULL, NULL);
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return gst_mpdparser_get_segmentURL_for_range (segmentURL->media,
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segmentURL->mediaRange);
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return segmentURL->media;
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}
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static gchar *
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@ -2393,8 +2371,7 @@ gst_mpdparser_get_initializationURL (GstURLType * InitializationURL)
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g_return_val_if_fail (InitializationURL != NULL, NULL);
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g_return_val_if_fail (InitializationURL->sourceURL != NULL, NULL);
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return gst_mpdparser_get_segmentURL_for_range (InitializationURL->sourceURL,
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InitializationURL->range);
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return InitializationURL->sourceURL;
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}
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static gchar *
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@ -3296,6 +3273,7 @@ gst_mpd_client_get_next_fragment_timestamp (GstMpdClient * client,
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gboolean
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gst_mpd_client_get_next_fragment (GstMpdClient * client,
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guint indexStream, gboolean * discontinuity, gchar ** uri,
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gint64 * range_start, gint64 * range_end,
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GstClockTime * duration, GstClockTime * timestamp)
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{
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GstActiveStream *stream = NULL;
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@ -3324,7 +3302,7 @@ gst_mpd_client_get_next_fragment (GstMpdClient * client,
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GST_DEBUG ("currentChunk->SegmentURL = %p", currentChunk->SegmentURL);
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if (currentChunk->SegmentURL != NULL) {
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mediaURL = gst_mpdparser_get_mediaURL (stream, currentChunk->SegmentURL);
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mediaURL = g_strdup (gst_mpdparser_get_mediaURL (stream, currentChunk->SegmentURL));
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} else if (stream->cur_seg_template != NULL) {
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mediaURL =
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gst_mpdparser_build_URL_from_template (stream->cur_seg_template->media,
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@ -3336,6 +3314,13 @@ gst_mpd_client_get_next_fragment (GstMpdClient * client,
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*timestamp = currentChunk->start_time;
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*duration = currentChunk->duration;
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*discontinuity = segment_idx != currentChunk->number;
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*range_start = 0;
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*range_end = -1;
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if (currentChunk->SegmentURL->mediaRange) {
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*range_start = currentChunk->SegmentURL->mediaRange->first_byte_pos;
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*range_end = currentChunk->SegmentURL->mediaRange->last_byte_pos;
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}
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if (mediaURL == NULL) {
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/* single segment with URL encoded in the baseURL syntax element */
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*uri = g_strdup (stream->baseURL);
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@ -3355,7 +3340,7 @@ gst_mpd_client_get_next_fragment (GstMpdClient * client,
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gboolean
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gst_mpd_client_get_next_header (GstMpdClient * client, gchar ** uri,
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guint stream_idx)
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guint stream_idx, gint64 * range_start, gint64 * range_end)
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{
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GstActiveStream *stream;
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GstStreamPeriod *stream_period;
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@ -3367,13 +3352,22 @@ gst_mpd_client_get_next_header (GstMpdClient * client, gchar ** uri,
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g_return_val_if_fail (stream_period != NULL, FALSE);
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g_return_val_if_fail (stream_period->period != NULL, FALSE);
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*range_start = 0;
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*range_end = -1;
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GST_DEBUG ("Looking for current representation header");
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GST_MPD_CLIENT_LOCK (client);
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*uri = NULL;
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if (stream->cur_segment_base && stream->cur_segment_base->Initialization) {
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*uri =
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gst_mpdparser_get_initializationURL (stream->
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cur_segment_base->Initialization);
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g_strdup (gst_mpdparser_get_initializationURL (stream->cur_segment_base->
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Initialization));
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if (stream->cur_segment_base->Initialization->range) {
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*range_start =
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stream->cur_segment_base->Initialization->range->first_byte_pos;
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*range_end =
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stream->cur_segment_base->Initialization->range->last_byte_pos;
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}
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} else if (stream->cur_seg_template) {
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const gchar *initialization = NULL;
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if (stream->cur_seg_template->initialization) {
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@ -473,8 +473,8 @@ GstClockTime gst_mpd_client_get_next_fragment_duration (GstMpdClient * client);
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GstClockTime gst_mpd_client_get_media_presentation_duration (GstMpdClient *client);
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gboolean gst_mpd_client_get_last_fragment_timestamp (GstMpdClient * client, guint stream_idx, GstClockTime * ts);
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gboolean gst_mpd_client_get_next_fragment_timestamp (GstMpdClient * client, guint stream_idx, GstClockTime * ts);
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gboolean gst_mpd_client_get_next_fragment (GstMpdClient *client, guint indexStream, gboolean *discontinuity, gchar **uri, GstClockTime *duration, GstClockTime *timestamp);
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gboolean gst_mpd_client_get_next_header (GstMpdClient *client, gchar **uri, guint stream_idx);
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gboolean gst_mpd_client_get_next_fragment (GstMpdClient *client, guint indexStream, gboolean *discontinuity, gchar **uri, gint64 * range_start, gint64 * range_end, GstClockTime *duration, GstClockTime *timestamp);
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gboolean gst_mpd_client_get_next_header (GstMpdClient *client, gchar **uri, guint stream_idx, gint64 * range_start, gint64 * range_end);
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gboolean gst_mpd_client_is_live (GstMpdClient * client);
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gboolean gst_mpd_client_stream_seek (GstMpdClient * client, GstActiveStream * stream, GstClockTime ts);
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