static void gst_hls_demux_stream_loop (GstHLSDemux * demux) { GstFragment *fragment; GstBuffer *buf; GstFlowReturn ret; GstCaps *bufcaps, *srccaps = NULL; /* Loop for the source pad task. The task is started when we have * received the main playlist from the source element. It tries first to * cache the first fragments and then it waits until it has more data in the * queue. This task is woken up when we push a new fragment to the queue or * when we reached the end of the playlist */ if (G_UNLIKELY (demux->need_cache)) { if (!gst_hls_demux_cache_fragments (demux)) goto cache_error; /* we can start now the updates thread (only if on playing) */ if (GST_STATE (demux) == GST_STATE_PLAYING) gst_task_start (demux->updates_task); GST_INFO_OBJECT (demux, "First fragments cached successfully"); } if (g_queue_is_empty (demux->queue)) { if (demux->end_of_playlist) goto end_of_playlist; goto pause_task; } fragment = g_queue_pop_head (demux->queue); buf = gst_fragment_get_buffer (fragment); /* Figure out if we need to create/switch pads */ if (G_LIKELY (demux->srcpad)) srccaps = gst_pad_get_current_caps (demux->srcpad); bufcaps = gst_fragment_get_caps (fragment); if (G_UNLIKELY (!srccaps || !gst_caps_is_equal_fixed (bufcaps, srccaps) || demux->need_segment)) { switch_pads (demux, bufcaps); demux->need_segment = TRUE; } gst_caps_unref (bufcaps); if (G_LIKELY (srccaps)) gst_caps_unref (srccaps); g_object_unref (fragment); if (demux->need_segment) { GstSegment segment; GstClockTime start = GST_BUFFER_PTS (buf); start += demux->position_shift; /* And send a newsegment */ GST_DEBUG_OBJECT (demux, "Sending new-segment. segment start:%" GST_TIME_FORMAT, GST_TIME_ARGS (start)); gst_segment_init (&segment, GST_FORMAT_TIME); segment.start = start; segment.time = start; gst_pad_push_event (demux->srcpad, gst_event_new_segment (&segment)); demux->need_segment = FALSE; demux->position_shift = 0; } ret = gst_pad_push (demux->srcpad, buf); if (ret != GST_FLOW_OK) goto error_pushing; return; end_of_playlist: { GST_DEBUG_OBJECT (demux, "Reached end of playlist, sending EOS"); gst_pad_push_event (demux->srcpad, gst_event_new_eos ()); gst_hls_demux_stop (demux); return; } cache_error: { gst_task_pause (demux->stream_task); if (!demux->cancelled) { GST_ELEMENT_ERROR (demux, RESOURCE, NOT_FOUND, ("Could not cache the first fragments"), (NULL)); gst_hls_demux_stop (demux); } return; } error_pushing: { /* FIXME: handle error */ GST_DEBUG_OBJECT (demux, "Error pushing buffer: %s... stopping task", gst_flow_get_name (ret)); gst_hls_demux_stop (demux); return; } pause_task: { gst_task_pause (demux->stream_task); return; } }
static void gst_hls_demux_loop (GstHLSDemux * demux) { GstBuffer *buf; GstFlowReturn ret; /* Loop for the source pad task. The task is started when we have * received the main playlist from the source element. It tries first to * cache the first fragments and then it waits until it has more data in the * queue. This task is woken up when we push a new fragment to the queue or * when we reached the end of the playlist */ if (G_UNLIKELY (demux->need_cache)) { if (!gst_hls_demux_cache_fragments (demux)) goto cache_error; /* we can start now the updates thread */ gst_hls_demux_start_update (demux); GST_INFO_OBJECT (demux, "First fragments cached successfully"); } if (g_queue_is_empty (demux->queue)) { if (demux->end_of_playlist) goto end_of_playlist; goto empty_queue; } buf = g_queue_pop_head (demux->queue); /* Figure out if we need to create/switch pads */ if (G_UNLIKELY (!demux->srcpad || GST_BUFFER_CAPS (buf) != GST_PAD_CAPS (demux->srcpad) || demux->need_segment)) { switch_pads (demux, GST_BUFFER_CAPS (buf)); demux->need_segment = TRUE; } if (demux->need_segment) { /* And send a newsegment */ GST_DEBUG_OBJECT (demux, "Sending new-segment. Segment start:%" GST_TIME_FORMAT, GST_TIME_ARGS (demux->position)); gst_pad_push_event (demux->srcpad, gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, demux->position, GST_CLOCK_TIME_NONE, demux->position)); demux->need_segment = FALSE; } if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DURATION (buf))) demux->position += GST_BUFFER_DURATION (buf); ret = gst_pad_push (demux->srcpad, buf); if (ret != GST_FLOW_OK) goto error; return; end_of_playlist: { GST_DEBUG_OBJECT (demux, "Reached end of playlist, sending EOS"); gst_pad_push_event (demux->srcpad, gst_event_new_eos ()); gst_hls_demux_stop (demux); return; } cache_error: { gst_task_pause (demux->task); if (!demux->cancelled) { GST_ELEMENT_ERROR (demux, RESOURCE, NOT_FOUND, ("Could not cache the first fragments"), (NULL)); gst_hls_demux_stop (demux); } return; } error: { /* FIXME: handle error */ GST_DEBUG_OBJECT (demux, "error, stopping task"); gst_hls_demux_stop (demux); return; } empty_queue: { gst_task_pause (demux->task); return; } }
static void gst_hls_demux_loop (GstHLSDemux * demux) { GstBuffer *buf; GstFlowReturn ret; /* Loop for the source pad task. The task is started when we have * received the main playlist from the source element. It tries first to * cache the first fragments and then it waits until it has more data in the * queue. This task is woken up when we push a new fragment to the queue or * when we reached the end of the playlist */ if (G_UNLIKELY (demux->need_cache)) { if (!gst_hls_demux_cache_fragments (demux)) goto cache_error; /* we can start now the updates thread */ gst_hls_demux_start_update (demux); GST_INFO_OBJECT (demux, "First fragments cached successfully"); } if (g_queue_is_empty (demux->queue)) { if (demux->end_of_playlist) goto end_of_playlist; GST_TASK_WAIT (demux->task); /* If the queue is still empty check again if it's the end of the * playlist in case we reached it after beeing woken up */ if (g_queue_is_empty (demux->queue) && demux->end_of_playlist) goto end_of_playlist; } buf = g_queue_pop_head (demux->queue); ret = gst_pad_push (demux->srcpad, buf); if (ret != GST_FLOW_OK) goto error; return; end_of_playlist: { GST_DEBUG_OBJECT (demux, "Reached end of playlist, sending EOS"); gst_pad_push_event (demux->srcpad, gst_event_new_eos ()); gst_hls_demux_stop (demux); return; } cache_error: { GST_ELEMENT_ERROR (demux, RESOURCE, NOT_FOUND, ("Could not cache the first fragments"), NULL); gst_hls_demux_stop (demux); return; } error: { /* FIXME: handle error */ gst_hls_demux_stop (demux); return; } }