FaSTTUBe/GST-Tensordecoder-ov_ep
46
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

flvmux: Insert AVC end of sequence

Browse Source 
This FLV specific mark is needed to prevent Flow Player (most likely
all Flash base player) from going into buffering state when near EOS.

https://bugzilla.gnome.org/show_bug.cgi?id=751320
This commit is contained in:
Nicolas Dufresne 2015-06-22 14:35:52 -04:00
parent 9a1ed36b7a
commit bbea34bb6e
1 changed files with 58 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
gst/flv/gstflvmux.c
View File

@ -1005,8 +1005,8 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
GstMapInfo map;
guint size;
guint32 pts, dts, cts;
guint8 *data, *bdata;
gsize bsize;
guint8 *data, *bdata = NULL;
gsize bsize = 0;
if (!GST_CLOCK_STIME_IS_VALID (cpad->dts)) {
pts = dts = cpad->last_timestamp / GST_MSECOND;
@ -1029,9 +1029,11 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
GST_LOG_OBJECT (mux, "got pts %i dts %i cts %i\n", pts, dts, cts);
gst_buffer_map (buffer, &map, GST_MAP_READ);
bdata = map.data;
bsize = map.size;
if (buffer != NULL) {
gst_buffer_map (buffer, &map, GST_MAP_READ);
bdata = map.data;
bsize = map.size;
}
size = 11;
if (cpad->video) {
@ -1064,7 +1066,7 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
data[8] = data[9] = data[10] = 0;
if (cpad->video) {
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
if (buffer && GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
data[11] |= 2 << 4;
else
data[11] |= 1 << 4;
@ -1075,6 +1077,10 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
if (is_codec_data) {
data[12] = 0;
GST_WRITE_UINT24_BE (data + 13, 0);
} else if (bsize == 0) {
/* AVC end of sequence */
data[12] = 2;
GST_WRITE_UINT24_BE (data + 13, 0);
} else {
/* ACV NALU */
data[12] = 1;
@ -1099,24 +1105,29 @@ gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
}
}
gst_buffer_unmap (buffer, &map);
if (buffer)
gst_buffer_unmap (buffer, &map);
GST_WRITE_UINT32_BE (data + size - 4, size - 4);
GST_BUFFER_PTS (tag) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DTS (tag) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (tag) = GST_CLOCK_TIME_NONE;
GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET (buffer);
GST_BUFFER_OFFSET_END (tag) = GST_BUFFER_OFFSET_END (buffer);
/* mark the buffer if it's an audio buffer and there's also video being muxed
* or it's a video interframe */
if ((mux->have_video && !cpad->video) ||
GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
if (buffer) {
GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET (buffer);
GST_BUFFER_OFFSET_END (tag) = GST_BUFFER_OFFSET_END (buffer);
/* mark the buffer if it's an audio buffer and there's also video being muxed
* or it's a video interframe */
if ((mux->have_video && !cpad->video) ||
GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
GST_BUFFER_FLAG_SET (tag, GST_BUFFER_FLAG_DELTA_UNIT);
} else {
GST_BUFFER_FLAG_SET (tag, GST_BUFFER_FLAG_DELTA_UNIT);
GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET_END (tag) =
GST_BUFFER_OFFSET_NONE;
GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET_END (tag) =
GST_BUFFER_OFFSET_NONE;
}
return tag;
}
@ -1135,6 +1146,12 @@ gst_flv_mux_codec_data_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, TRUE);
}
static inline GstBuffer *
gst_flv_mux_eos_to_tag (GstFlvMux * mux, GstFlvPad * cpad)
{
return gst_flv_mux_buffer_to_tag_internal (mux, NULL, cpad, FALSE);
}
static void
gst_flv_mux_put_buffer_in_streamheader (GValue * streamheader,
GstBuffer * buffer)
@ -1344,6 +1361,29 @@ gst_flv_mux_determine_duration (GstFlvMux * mux)
return duration;
}
static GstFlowReturn
gst_flv_mux_write_eos (GstFlvMux * mux)
{
GstBuffer *tag;
GstFlvPad *video_pad = NULL;
GSList *l = mux->collect->data;
if (!mux->have_video)
return GST_FLOW_OK;
for (; l; l = l->next) {
GstFlvPad *cpad = l->data;
if (cpad && cpad->video) {
video_pad = cpad;
break;
}
}
tag = gst_flv_mux_eos_to_tag (mux, video_pad);
return gst_flv_mux_push (mux, tag);
}
static GstFlowReturn
gst_flv_mux_rewrite_header (GstFlvMux * mux)
{
@ -1550,6 +1590,8 @@ gst_flv_mux_handle_buffer (GstCollectPads * pads, GstCollectData * cdata,
if (best) {
return gst_flv_mux_write_buffer (mux, best, buffer);
} else {
/* FIXME check return values */
gst_flv_mux_write_eos (mux);
gst_flv_mux_rewrite_header (mux);
gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
return GST_FLOW_EOS;