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msdkdec: use video memory if there's another MSDK context in a pipeline

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1\ If downstream's pool is MSDK bufferpool,
2\ If there's shared GstMsdkContext in the pipeline,

a decoder decides to use video memory.

This policy should be improved to handle more cases.

https://bugzilla.gnome.org/show_bug.cgi?id=790752
This commit is contained in:
Hyunjun Ko 2018-02-13 13:53:02 -09:00 committed by Sreerenj Balachandran
parent 375a50a876
commit 72c6cd5545
1 changed files with 14 additions and 9 deletions
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23
sys/msdk/gstmsdkdec.c
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@ -396,11 +396,6 @@ gst_msdkdec_set_src_caps (GstMsdkDec * thiz)
output_state->caps = gst_video_info_to_caps (&output_state->info);
gst_video_codec_state_unref (output_state);
/* TODO: If downstream accepts msdk memory or dmabuf,
* this should be TRUE and using MFX_IOPATTERN_OUT_VIDEO_MEMORY
*/
thiz->use_video_memory = FALSE;
return TRUE;
}
@ -500,6 +495,7 @@ gst_msdkdec_start (GstVideoDecoder * decoder)
if (gst_msdk_context_prepare (GST_ELEMENT_CAST (thiz), &thiz->context)) {
GST_INFO_OBJECT (thiz, "Found context %" GST_PTR_FORMAT " from neighbour",
thiz->context);
thiz->use_video_memory = TRUE;
if (gst_msdk_context_get_job_type (thiz->context) & GST_MSDK_JOB_DECODER) {
GstMsdkContext *parent_context;
@ -520,7 +516,6 @@ gst_msdkdec_start (GstVideoDecoder * decoder)
} else {
gst_msdk_context_ensure_context (GST_ELEMENT_CAST (thiz), thiz->hardware,
GST_MSDK_JOB_DECODER);
GST_INFO_OBJECT (thiz, "Creating new context %" GST_PTR_FORMAT,
thiz->context);
}
@ -572,9 +567,6 @@ gst_msdkdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
if (!gst_msdkdec_set_src_caps (thiz))
return FALSE;
if (!gst_msdkdec_init_decoder (thiz))
return FALSE;
gst_msdkdec_set_latency (thiz);
return TRUE;
}
@ -634,6 +626,9 @@ gst_msdkdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
GstMapInfo map_info;
guint i;
if (!thiz->initialized)
gst_video_decoder_negotiate (decoder);
if (!gst_buffer_map (frame->input_buffer, &map_info, GST_MAP_READ))
return GST_FLOW_ERROR;
@ -812,6 +807,10 @@ gst_msdkdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
pool_config = gst_buffer_pool_get_config (pool);
/* If downstream's pool is MSDK bufferpool, decoder is using video memory */
if (GST_IS_MSDK_BUFFER_POOL (pool))
thiz->use_video_memory = TRUE;
/* Get the caps of pool and increase the min and max buffers by async_depth,
* we will always have that number of decode operations in-flight */
gst_buffer_pool_config_get_params (pool_config, &pool_caps, &size,
@ -885,6 +884,12 @@ gst_msdkdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
if (pool)
gst_object_unref (pool);
/* Initialize MSDK decoder before new bufferpool tries to alloc each buffer,
* which requires information of frame allocation.
*/
if (!gst_msdkdec_init_decoder (thiz))
return FALSE;
return TRUE;
failed_to_create_pool: