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nvenc: Fix deadlock when pad_push return was not GST_FLOW_OK

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Encoding thread is terminated without any notification so
upstream streaming thread is locked because there is nothing
to pop from GAsyncQueue. If downstream returns error,
we need put SHUTDOWN_COOKIE to GAsyncQueue for chain function
can wakeup.
This commit is contained in:
Seungha Yang 2019-07-30 17:49:25 +09:00
parent 3faf439347
commit 0445ed6ba5
1 changed files with 6 additions and 0 deletions
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6
sys/nvcodec/gstnvbaseenc.c
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@ -726,6 +726,7 @@ gst_nv_base_enc_bitstream_thread (gpointer user_data)
if (flow != GST_FLOW_OK) {
GST_INFO_OBJECT (enc, "got flow %s", gst_flow_get_name (flow));
g_atomic_int_set (&nvenc->last_flow, flow);
g_async_queue_push (nvenc->in_bufs_pool, SHUTDOWN_COOKIE);
break;
}
}
@ -1462,6 +1463,9 @@ _acquire_input_buffer (GstNvBaseEnc * nvenc, gpointer * input)
*input = g_async_queue_pop (nvenc->in_bufs_pool);
GST_VIDEO_ENCODER_STREAM_LOCK (nvenc);
if (*input == SHUTDOWN_COOKIE)
return g_atomic_int_get (&nvenc->last_flow);
return GST_FLOW_OK;
}
@ -1569,6 +1573,8 @@ gst_nv_base_enc_handle_frame (GstVideoEncoder * enc, GstVideoCodecFrame * frame)
flow = _acquire_input_buffer (nvenc, &input_buffer);
if (flow != GST_FLOW_OK)
goto out;
else if (input_buffer == SHUTDOWN_COOKIE)
goto out;
if (input_buffer == NULL)
goto error;