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flvmux: Use first running time on the initial header instead of 0

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7780>
This commit is contained in:
Sebastian Dröge 2024-10-29 15:30:59 +02:00 committed by GStreamer Marge Bot
parent d33f5a1de9
commit 356aca593d
1 changed files with 27 additions and 17 deletions
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44
subprojects/gst-plugins-good/gst/flv/gstflvmux.c
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@ -180,12 +180,12 @@ gst_flv_mux_skip_buffer (GstAggregatorPad * apad, GstAggregator * aggregator,
t = gst_flv_mux_segment_to_running_time (&apad->segment,
GST_BUFFER_DTS_OR_PTS (buffer));
if (t < (GST_MSECOND * mux->last_dts)) {
if (GST_CLOCK_TIME_IS_VALID (mux->last_dts)
&& t < (GST_MSECOND * mux->last_dts)) {
GST_WARNING_OBJECT (fpad,
"Timestamp %" GST_TIME_FORMAT " going backwards from last used %"
GST_TIME_FORMAT ", dropping %" GST_PTR_FORMAT,
GST_TIME_ARGS (t), GST_TIME_ARGS (GST_MSECOND * mux->last_dts),
buffer);
GST_TIME_FORMAT ", dropping %" GST_PTR_FORMAT, GST_TIME_ARGS (t),
GST_TIME_ARGS (GST_MSECOND * mux->last_dts), buffer);
/* Look for non-delta buffer */
fpad->drop_deltas = TRUE;
return TRUE;
@ -408,7 +408,7 @@ gst_flv_mux_reset (GstElement * element)
mux->duration = GST_CLOCK_TIME_NONE;
mux->new_metadata = FALSE;
mux->first_timestamp = GST_CLOCK_TIME_NONE;
mux->last_dts = 0;
mux->last_dts = GST_CLOCK_TIME_NONE;
mux->state = GST_FLV_MUX_STATE_HEADER;
mux->sent_header = FALSE;
@ -931,7 +931,9 @@ gst_flv_mux_create_metadata (GstFlvMux * mux)
tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux));
dts = mux->last_dts;
dts =
GST_CLOCK_TIME_IS_VALID (mux->last_dts) ? mux->
last_dts : mux->first_timestamp / GST_MSECOND;
/* Timestamp must start at zero */
if (GST_CLOCK_TIME_IS_VALID (mux->first_timestamp)) {
@ -1269,21 +1271,29 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
" from rounding last pad timestamp %" GST_TIME_FORMAT,
GST_PAD_NAME (pad), GST_TIME_ARGS (pts * GST_MSECOND),
GST_TIME_ARGS (pad->last_timestamp));
} else {
} else if (GST_CLOCK_TIME_IS_VALID (mux->last_dts)) {
pts = dts = mux->last_dts;
GST_DEBUG_OBJECT (mux,
"Pad %s: Created dts and pts %" GST_TIME_FORMAT
" from last mux timestamp",
GST_PAD_NAME (pad), GST_TIME_ARGS (pts * GST_MSECOND));
} else {
pts = dts = mux->first_timestamp / GST_MSECOND;
GST_DEBUG_OBJECT (mux,
"Pad %s: Created dts and pts %" GST_TIME_FORMAT
" from first timestamp",
GST_PAD_NAME (pad), GST_TIME_ARGS (pts * GST_MSECOND));
}
/* We prevent backwards timestamps because they confuse librtmp,
* it expects timestamps to go forward not only inside one stream, but
* also between the audio & video streams.
*/
if (dts < mux->last_dts && mux->enforce_increasing_timestamps) {
GST_WARNING_OBJECT (pad, "Got backwards dts! (%" GST_TIME_FORMAT
" < %" GST_TIME_FORMAT ")", GST_TIME_ARGS (dts * GST_MSECOND),
if (GST_CLOCK_TIME_IS_VALID (mux->last_dts) && dts < mux->last_dts
&& mux->enforce_increasing_timestamps) {
GST_WARNING_OBJECT (pad,
"Got backwards dts! (%" GST_TIME_FORMAT " < %" GST_TIME_FORMAT ")",
GST_TIME_ARGS (dts * GST_MSECOND),
GST_TIME_ARGS (mux->last_dts * GST_MSECOND));
dts = mux->last_dts;
}
@ -2053,19 +2063,19 @@ gst_flv_mux_aggregate (GstAggregator * aggregator, gboolean timeout)
goto out;
}
ret = gst_flv_mux_write_header (mux);
if (ret != GST_FLOW_OK) {
goto out;
}
mux->state = GST_FLV_MUX_STATE_DATA;
if (!mux->streamable || mux->first_timestamp == GST_CLOCK_TIME_NONE) {
if (best && GST_CLOCK_TIME_IS_VALID (ts))
mux->first_timestamp = ts;
else
mux->first_timestamp = 0;
}
ret = gst_flv_mux_write_header (mux);
if (ret != GST_FLOW_OK) {
goto out;
}
mux->state = GST_FLV_MUX_STATE_DATA;
} else {
best = gst_flv_mux_find_best_pad (aggregator, &ts, timeout);
}