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x265enc: fix deadlock on reconfig

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Don't attempt to obtain encoder lock that is already held by
gst_x265_enc_encode_frame().

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1671>
This commit is contained in:
Jakub Adam 2020-10-08 18:25:59 +02:00 committed by GStreamer Merge Bot
parent d3d73f61fa
commit 6f2f15b5fb
1 changed files with 21 additions and 16 deletions
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37
ext/x265/gstx265enc.c
View file

@ -785,15 +785,8 @@ gst_x265_enc_parse_options (GstX265Enc * encoder, const gchar * str)
return !ret;
}
/*
* gst_x265_enc_init_encoder
* @encoder: Encoder which should be initialized.
*
* Initialize x265 encoder.
*
*/
static gboolean
gst_x265_enc_init_encoder (GstX265Enc * encoder)
gst_x265_enc_init_encoder_locked (GstX265Enc * encoder)
{
GstVideoInfo *info;
guint bitdepth;
@ -809,7 +802,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
/* make sure that the encoder is closed */
gst_x265_enc_close_encoder (encoder);
GST_OBJECT_LOCK (encoder);
bitdepth = GST_VIDEO_INFO_COMP_DEPTH (info, 0);
encoder->api = NULL;
@ -837,7 +829,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
if (!encoder->api) {
GST_ERROR_OBJECT (encoder, "no %d bitdepth vtable available", bitdepth);
GST_OBJECT_UNLOCK (encoder);
return FALSE;
}
@ -845,7 +836,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
x265_preset_names[encoder->speed_preset - 1],
x265_tune_names[encoder->tune - 1]) < 0) {
GST_DEBUG_OBJECT (encoder, "preset or tune unrecognized");
GST_OBJECT_UNLOCK (encoder);
return FALSE;
}
@ -929,7 +919,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
if (i == encoder->peer_profiles->len) {
GST_ERROR_OBJECT (encoder, "Couldn't apply peer profile");
GST_OBJECT_UNLOCK (encoder);
return FALSE;
}
@ -980,7 +969,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
if (gst_x265_enc_parse_options (encoder,
encoder->option_string_prop->str) == FALSE) {
GST_DEBUG_OBJECT (encoder, "Your option-string contains errors.");
GST_OBJECT_UNLOCK (encoder);
return FALSE;
}
}
@ -990,8 +978,6 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
/* good start, will be corrected if needed */
encoder->dts_offset = 0;
GST_OBJECT_UNLOCK (encoder);
encoder->x265enc = encoder->api->encoder_open (&encoder->x265param);
if (!encoder->x265enc) {
GST_ELEMENT_ERROR (encoder, STREAM, ENCODE,
@ -1004,6 +990,25 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
return TRUE;
}
/*
* gst_x265_enc_init_encoder
* @encoder: Encoder which should be initialized.
*
* Initialize x265 encoder.
*
*/
static gboolean
gst_x265_enc_init_encoder (GstX265Enc * encoder)
{
gboolean result;
GST_OBJECT_LOCK (encoder);
result = gst_x265_enc_init_encoder_locked (encoder);
GST_OBJECT_UNLOCK (encoder);
return result;
}
/* gst_x265_enc_close_encoder
* @encoder: Encoder which should close.
*
@ -1520,7 +1525,7 @@ gst_x265_enc_encode_frame (GstX265Enc * encoder, x265_picture * pic_in,
GST_OBJECT_LOCK (encoder);
if (encoder->reconfig) {
/* x265_encoder_reconfig is not yet implemented thus we shut down and re-create encoder */
gst_x265_enc_init_encoder (encoder);
gst_x265_enc_init_encoder_locked (encoder);
update_latency = TRUE;
}