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omx: Fix deadlock in encoders and add explainatory comments.

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This commit is contained in:
Josep Torra 2013-03-09 14:14:40 +01:00
parent 7423e3e023
commit bd071327da
3 changed files with 16 additions and 0 deletions
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6
omx/gstomxaudioenc.c
View file

@ -634,7 +634,13 @@ gst_omx_audio_enc_set_format (GstAudioEncoder * encoder, GstAudioInfo * info)
GST_DEBUG_OBJECT (self, "Need to disable and drain encoder");
gst_omx_audio_enc_drain (self);
gst_omx_port_set_flushing (self->enc_out_port, 5 * GST_SECOND, TRUE);
/* Wait until the srcpad loop is finished,
* unlock GST_AUDIO_ENCODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
gst_pad_stop_task (GST_AUDIO_ENCODER_SRC_PAD (encoder));
GST_AUDIO_ENCODER_STREAM_LOCK (self);
if (gst_omx_port_set_enabled (self->enc_in_port, FALSE) != OMX_ErrorNone)
return FALSE;

4
omx/gstomxvideodec.c
View file

@ -1989,6 +1989,10 @@ gst_omx_video_dec_set_format (GstVideoDecoder * decoder,
gst_omx_video_dec_drain (self, FALSE);
gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE);
/* Wait until the srcpad loop is finished,
* unlock GST_VIDEO_DECODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_VIDEO_DECODER_STREAM_UNLOCK (self);
gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder));
GST_VIDEO_DECODER_STREAM_LOCK (self);

6
omx/gstomxvideoenc.c
View file

@ -1102,7 +1102,13 @@ gst_omx_video_enc_set_format (GstVideoEncoder * encoder,
GST_DEBUG_OBJECT (self, "Need to disable and drain encoder");
gst_omx_video_enc_drain (self, FALSE);
gst_omx_port_set_flushing (self->enc_out_port, 5 * GST_SECOND, TRUE);
/* Wait until the srcpad loop is finished,
* unlock GST_VIDEO_ENCODER_STREAM_LOCK to prevent deadlocks
* caused by using this lock from inside the loop function */
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
gst_pad_stop_task (GST_VIDEO_ENCODER_SRC_PAD (encoder));
GST_VIDEO_ENCODER_STREAM_LOCK (self);
if (gst_omx_port_set_enabled (self->enc_in_port, FALSE) != OMX_ErrorNone)
return FALSE;