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adaptivedemux2: Fix download error handling more

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gst_adaptive_demux2_stream_finish_download() will already schedule another
fragment download if it can so don't fall through to the retry code that will
also try and schedule a download (triggering an assert).

Fix the logic in general to retry advancing into the live seek range once.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3883>
This commit is contained in:
Jan Schmidt 2023-01-03 21:03:35 +11:00 committed by GStreamer Marge Bot
parent b1354058e1
commit 6bb74ed2a0
2 changed files with 44 additions and 40 deletions
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57
subprojects/gst-plugins-good/ext/adaptivedemux2/gstadaptivedemux-stream.c
View file

@ -1200,39 +1200,32 @@ on_download_error (DownloadRequest * request, DownloadRequestState state,
stream->download_active = FALSE;
stream->last_status_code = last_status_code;
GST_DEBUG_OBJECT (stream,
"Download finished with error, request state %d http status %u, dc %d",
request->state, last_status_code, stream->download_error_count);
live = gst_adaptive_demux_is_live (demux);
if (((last_status_code / 100 == 4 && live)
GST_DEBUG_OBJECT (stream,
"Download finished with error, request state %d http status %u, dc %d "
"live %d retried %d",
request->state, last_status_code,
stream->download_error_count, live, stream->download_error_retry);
if (!stream->download_error_retry && ((last_status_code / 100 == 4 && live)
|| last_status_code / 100 == 5)) {
/* 4xx/5xx */
/* if current position is before available start, switch to next */
if (live) {
gint64 range_start, range_stop;
if (!gst_adaptive_demux_get_live_seek_range (demux, &range_start,
&range_stop))
goto flushing;
if (gst_adaptive_demux_get_live_seek_range (demux, &range_start,
&range_stop)) {
if (demux->segment.position < range_start) {
GstFlowReturn ret;
/* This should advance into the valid playlist range */
GST_DEBUG_OBJECT (stream, "Retrying once with next segment");
gst_adaptive_demux2_stream_finish_download (stream, GST_FLOW_EOS, NULL);
GST_DEBUG_OBJECT (demux, "Calling update_fragment_info");
ret = gst_adaptive_demux2_stream_update_fragment_info (stream);
GST_DEBUG_OBJECT (stream, "update_fragment_info ret: %s",
gst_flow_get_name (ret));
if (ret == GST_FLOW_OK)
goto again;
stream->download_error_retry = TRUE;
gst_adaptive_demux2_stream_finish_download (stream, GST_FLOW_OK,
NULL);
return;
} else if (demux->segment.position > range_stop) {
/* wait a bit to be in range, we don't have any locks at that point */
/* wait a bit to be in range */
GstClockTime wait_time =
gst_adaptive_demux2_stream_get_fragment_waiting_time (stream);
if (wait_time > 0) {
@ -1240,17 +1233,24 @@ on_download_error (DownloadRequest * request, DownloadRequestState state,
"Download waiting for %" GST_TIME_FORMAT,
GST_TIME_ARGS (wait_time));
g_assert (stream->pending_cb_id == 0);
GST_LOG_OBJECT (stream, "Scheduling delayed load_a_fragment() call");
GST_LOG_OBJECT (stream,
"Scheduling delayed load_a_fragment() call");
stream->pending_cb_id =
gst_adaptive_demux_loop_call_delayed (demux->priv->scheduler_task,
wait_time,
gst_adaptive_demux_loop_call_delayed (demux->
priv->scheduler_task, wait_time,
(GSourceFunc) gst_adaptive_demux2_stream_load_a_fragment,
gst_object_ref (stream), (GDestroyNotify) gst_object_unref);
return;
}
} else {
GST_LOG_OBJECT (stream,
"Failed segment is inside the live range, retrying");
}
} else {
GST_LOG_OBJECT (stream, "Could not get live seek range after error");
}
}
flushing:
if (stream->download_error_count >= MAX_DOWNLOAD_ERROR_COUNT) {
/* looks like there is no way of knowing when a live stream has ended
* Have to assume we are falling behind and cause a manifest reload */
@ -1371,6 +1371,7 @@ on_download_complete (DownloadRequest * request, DownloadRequestState state,
GstBuffer *buffer;
stream->download_active = FALSE;
stream->download_error_retry = FALSE;
if (stream->state != GST_ADAPTIVE_DEMUX2_STREAM_STATE_DOWNLOADING) {
GST_DEBUG_OBJECT (stream, "Stream state changed to %d. Aborting",
@ -2193,6 +2194,8 @@ gst_adaptive_demux2_stream_stop_default (GstAdaptiveDemux2Stream * stream)
stream->downloading_header = stream->downloading_index = FALSE;
stream->download_request = download_request_new ();
stream->download_active = FALSE;
stream->download_error_retry = FALSE;
stream->download_error_count = 0;
stream->next_input_wakeup_time = GST_CLOCK_STIME_NONE;
}

1
subprojects/gst-plugins-good/ext/adaptivedemux2/gstadaptivedemux-stream.h
View file

@ -342,6 +342,7 @@ struct _GstAdaptiveDemux2Stream
GstAdaptiveDemux2StreamFragment fragment;
gboolean download_error_retry;
guint download_error_count;
/* Last collection provided by parsebin */