static void gst_vaapi_decoder_notify_caps(GObject *obj, GParamSpec *pspec, void *user_data) { GstVaapiDecode * const decode = GST_VAAPIDECODE(user_data); GstCaps *caps; g_assert(decode->decoder == GST_VAAPI_DECODER(obj)); caps = gst_vaapi_decoder_get_caps(decode->decoder); gst_vaapidecode_update_src_caps(decode, caps); }
static gboolean gst_vaapidecode_negotiate (GstVaapiDecode * decode) { GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode); GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec); GST_DEBUG_OBJECT (decode, "input codec state changed: renegotiating"); GST_VIDEO_DECODER_STREAM_LOCK (vdec); if (!gst_vaapi_plugin_base_set_caps (plugin, decode->sinkpad_caps, NULL)) return FALSE; if (!gst_vaapidecode_update_src_caps (decode)) return FALSE; if (!gst_vaapi_plugin_base_set_caps (plugin, NULL, decode->srcpad_caps)) return FALSE; GST_VIDEO_DECODER_STREAM_UNLOCK (vdec); if (!gst_video_decoder_negotiate (vdec)) return FALSE; return TRUE; }
static gboolean gst_vaapidecode_set_caps(GstPad *pad, GstCaps *caps) { GstVaapiDecode * const decode = GST_VAAPIDECODE(GST_OBJECT_PARENT(pad)); g_return_val_if_fail(pad == decode->sinkpad, FALSE); if (!gst_vaapidecode_update_sink_caps(decode, caps)) return FALSE; if (!gst_vaapidecode_update_src_caps(decode, caps)) return FALSE; if (!gst_vaapidecode_reset(decode, decode->sinkpad_caps)) return FALSE; /* Propagate NEWSEGMENT event downstream, now that pads are linked */ if (decode->delayed_new_seg) { if (gst_pad_push_event(decode->srcpad, decode->delayed_new_seg)) gst_event_unref(decode->delayed_new_seg); decode->delayed_new_seg = NULL; } return TRUE; }
static GstFlowReturn gst_vaapidecode_handle_frame (GstVideoDecoder * vdec, GstVideoCodecFrame * frame) { GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec); GstVaapiDecoderStatus status; GstFlowReturn ret; if (!decode->input_state) goto not_negotiated; if (G_UNLIKELY (!decode->active) || gst_pad_needs_reconfigure (GST_VIDEO_DECODER_SRC_PAD (vdec))) { GST_DEBUG_OBJECT (decode, "activating the decoder"); if (!gst_vaapidecode_update_src_caps (decode)) goto not_negotiated; if (!gst_video_decoder_negotiate (vdec)) goto not_negotiated; GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec); if (!gst_vaapi_plugin_base_set_caps (plugin, NULL, decode->srcpad_caps)) goto not_negotiated; decode->active = TRUE; } /* Decode current frame */ for (;;) { status = gst_vaapi_decoder_decode (decode->decoder, frame); if (status == GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE) { /* Make sure that there are no decoded frames waiting in the output queue. */ ret = gst_vaapidecode_push_all_decoded_frames (decode); if (ret != GST_FLOW_OK) goto error_push_all_decoded_frames; g_mutex_lock (&decode->surface_ready_mutex); if (gst_vaapi_decoder_check_status (decode->decoder) == GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE) g_cond_wait (&decode->surface_ready, &decode->surface_ready_mutex); g_mutex_unlock (&decode->surface_ready_mutex); continue; } if (status != GST_VAAPI_DECODER_STATUS_SUCCESS) goto error_decode; break; } /* Note that gst_vaapi_decoder_decode cannot return success without completing the decode and pushing all decoded frames into the output queue */ return gst_vaapidecode_push_all_decoded_frames (decode); /* ERRORS */ error_push_all_decoded_frames: { GST_ERROR ("push loop error while decoding %d", ret); gst_video_decoder_drop_frame (vdec, frame); return ret; } error_decode: { GST_ERROR ("decode error %d", status); switch (status) { case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC: case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE: case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT: ret = GST_FLOW_NOT_SUPPORTED; break; default: GST_VIDEO_DECODER_ERROR (vdec, 1, STREAM, DECODE, ("Decoding error"), ("Decode error %d", status), ret); break; } gst_video_decoder_drop_frame (vdec, frame); return ret; } not_negotiated: { GST_ERROR_OBJECT (decode, "not negotiated"); ret = GST_FLOW_NOT_NEGOTIATED; gst_video_decoder_drop_frame (vdec, frame); return ret; } }