2012-12-23 09:23:16 +00:00
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/*
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* Copyright (C) 2012 Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstmfcdec.h"
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2012-12-23 10:47:50 +00:00
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#include <string.h>
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2012-12-23 09:23:16 +00:00
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GST_DEBUG_CATEGORY_STATIC (gst_mfc_dec_debug);
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#define GST_CAT_DEFAULT gst_mfc_dec_debug
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static gboolean gst_mfc_dec_start (GstVideoDecoder * decoder);
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static gboolean gst_mfc_dec_stop (GstVideoDecoder * decoder);
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static gboolean gst_mfc_dec_set_format (GstVideoDecoder * decoder,
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GstVideoCodecState * state);
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2012-12-23 10:47:50 +00:00
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static gboolean gst_mfc_dec_reset (GstVideoDecoder * decoder, gboolean hard);
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static gboolean gst_mfc_dec_finish (GstVideoDecoder * decoder);
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2012-12-23 09:23:16 +00:00
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static GstFlowReturn gst_mfc_dec_handle_frame (GstVideoDecoder * decoder,
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GstVideoCodecFrame * frame);
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static GstStaticPadTemplate gst_mfc_dec_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-h264, "
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"parsed = (boolean) true, "
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2012-12-23 10:47:50 +00:00
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"stream-format = (string) byte-stream, " "alignment = (string) au")
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2012-12-23 09:23:16 +00:00
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);
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static GstStaticPadTemplate gst_mfc_dec_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("NV12"))
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);
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GST_BOILERPLATE (GstMFCDec, gst_mfc_dec, GstVideoDecoder,
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GST_TYPE_VIDEO_DECODER);
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static void
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gst_mfc_dec_base_init (gpointer g_class)
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{
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GstElementClass *element_class = (GstElementClass *) g_class;
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_mfc_dec_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_mfc_dec_sink_template));
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gst_element_class_set_details_simple (element_class,
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"Samsung Exynos MFC decoder",
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"Codec/Decoder/Video",
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"Decode video streams via Samsung Exynos",
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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}
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static void
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gst_mfc_dec_class_init (GstMFCDecClass * klass)
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{
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GstVideoDecoderClass *video_decoder_class;
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video_decoder_class = (GstVideoDecoderClass *) klass;
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2012-12-23 10:47:50 +00:00
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mfc_dec_init_debug ();
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2012-12-23 09:23:16 +00:00
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video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_mfc_dec_start);
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video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_mfc_dec_stop);
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2012-12-23 10:47:50 +00:00
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video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_mfc_dec_finish);
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2012-12-23 09:23:16 +00:00
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video_decoder_class->reset = GST_DEBUG_FUNCPTR (gst_mfc_dec_reset);
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2012-12-23 10:47:50 +00:00
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video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_mfc_dec_set_format);
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2012-12-23 09:23:16 +00:00
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video_decoder_class->handle_frame =
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GST_DEBUG_FUNCPTR (gst_mfc_dec_handle_frame);
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GST_DEBUG_CATEGORY_INIT (gst_mfc_dec_debug, "mfcdec", 0,
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"Samsung Exynos MFC Decoder");
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}
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static void
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gst_mfc_dec_init (GstMFCDec * self, GstMFCDecClass * klass)
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{
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GstVideoDecoder *decoder = (GstVideoDecoder *) self;
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gst_video_decoder_set_packetized (decoder, TRUE);
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}
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static gboolean
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gst_mfc_dec_start (GstVideoDecoder * decoder)
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{
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GstMFCDec *self = GST_MFC_DEC (decoder);
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GST_DEBUG_OBJECT (self, "Starting");
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2012-12-23 10:47:50 +00:00
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/* Initialize with H264 here, we chose the correct codec in set_format */
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self->context = mfc_dec_create (CODEC_TYPE_H264, 1);
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if (!self->context) {
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GST_ELEMENT_ERROR (self, LIBRARY, INIT,
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("Failed to initialize MFC decoder context"), (NULL));
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}
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return self->context != NULL;
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2012-12-23 09:23:16 +00:00
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}
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static gboolean
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gst_mfc_dec_stop (GstVideoDecoder * video_decoder)
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{
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GstMFCDec *self = GST_MFC_DEC (video_decoder);
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GST_DEBUG_OBJECT (self, "Stopping");
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if (self->input_state) {
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gst_video_codec_state_unref (self->input_state);
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self->input_state = NULL;
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}
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2012-12-23 10:47:50 +00:00
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if (self->context) {
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mfc_dec_destroy (self->context);
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self->context = NULL;
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}
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self->initialized = FALSE;
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2012-12-23 09:23:16 +00:00
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GST_DEBUG_OBJECT (self, "Stopped");
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return TRUE;
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}
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static gboolean
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2012-12-23 10:47:50 +00:00
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gst_mfc_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
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2012-12-23 09:23:16 +00:00
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{
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GstMFCDec *self = GST_MFC_DEC (decoder);
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2012-12-23 10:47:50 +00:00
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GstStructure *s;
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gint ret;
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2012-12-23 09:23:16 +00:00
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GST_DEBUG_OBJECT (self, "Setting format: %" GST_PTR_FORMAT, state->caps);
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2012-12-23 10:47:50 +00:00
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s = gst_caps_get_structure (state->caps, 0);
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if (gst_structure_has_name (s, "video/x-h264")) {
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if ((ret = mfc_dec_set_codec (self->context, CODEC_TYPE_H264)) < 0) {
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GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS,
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("Failed to set codec to H264"), (NULL));
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return FALSE;
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}
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} else {
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g_return_val_if_reached (FALSE);
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}
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2012-12-23 09:23:16 +00:00
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if (self->input_state)
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gst_video_codec_state_unref (self->input_state);
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self->input_state = gst_video_codec_state_ref (state);
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return TRUE;
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}
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static gboolean
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gst_mfc_dec_reset (GstVideoDecoder * decoder, gboolean hard)
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{
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GstMFCDec *self = GST_MFC_DEC (decoder);
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GST_DEBUG_OBJECT (self, "Resetting");
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2012-12-23 10:47:50 +00:00
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if (self->context)
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mfc_dec_flush (self->context);
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2012-12-23 09:23:16 +00:00
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return TRUE;
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}
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static GstFlowReturn
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2012-12-23 10:47:50 +00:00
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gst_mfc_dec_queue_input (GstMFCDec * self, GstBuffer * inbuf)
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2012-12-23 09:23:16 +00:00
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{
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GstFlowReturn ret = GST_FLOW_OK;
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2012-12-23 10:47:50 +00:00
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gint mfc_ret;
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struct mfc_buffer *mfc_inbuf = NULL;
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guint8 *mfc_inbuf_data;
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gint mfc_inbuf_size;
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const guint8 *inbuf_data;
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gsize inbuf_size;
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GST_DEBUG_OBJECT (self, "Dequeueing input");
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if ((mfc_ret = mfc_dec_dequeue_input (self->context, &mfc_inbuf)) < 0) {
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if (mfc_ret == -2) {
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GST_DEBUG_OBJECT (self, "Timeout dequeueing input, trying again");
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mfc_ret = mfc_dec_dequeue_input (self->context, &mfc_inbuf);
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}
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if (mfc_ret < 0)
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goto dequeue_error;
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}
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2012-12-23 09:23:16 +00:00
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2012-12-23 10:47:50 +00:00
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g_assert (mfc_inbuf != NULL);
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if (inbuf) {
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inbuf_data = GST_BUFFER_DATA (inbuf);
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inbuf_size = GST_BUFFER_SIZE (inbuf);
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mfc_inbuf_data = mfc_buffer_get_input_data (mfc_inbuf);
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g_assert (mfc_inbuf_data != NULL);
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mfc_inbuf_size = mfc_buffer_get_input_max_size (mfc_inbuf);
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GST_DEBUG_OBJECT (self, "Have input buffer %p with size %d", mfc_inbuf_data,
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mfc_inbuf_size);
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if (mfc_inbuf_size < inbuf_size)
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goto too_small_inbuf;
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memcpy (mfc_inbuf_data, inbuf_data, inbuf_size);
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mfc_buffer_set_input_size (mfc_inbuf, inbuf_size);
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} else {
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GST_DEBUG_OBJECT (self, "Passing EOS input buffer");
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mfc_buffer_set_input_size (mfc_inbuf, 0);
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}
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if ((mfc_ret = mfc_dec_enqueue_input (self->context, mfc_inbuf)) < 0)
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goto enqueue_error;
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done:
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return ret;
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dequeue_error:
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{
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GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
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("Failed to dequeue input buffer"), ("mfc_dec_dequeue_input: %d",
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mfc_ret));
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ret = GST_FLOW_ERROR;
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goto done;
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}
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too_small_inbuf:
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{
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GST_ELEMENT_ERROR (self, STREAM, FORMAT, ("Too large input frames"),
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("Maximum size %d, got %d", mfc_inbuf_size, inbuf_size));
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ret = GST_FLOW_ERROR;
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goto done;
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}
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enqueue_error:
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{
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GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
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("Failed to enqueue input buffer"), ("mfc_dec_enqueue_input: %d",
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mfc_ret));
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ret = GST_FLOW_ERROR;
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goto done;
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}
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}
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static GstVideoCodecFrame *
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gst_mfc_dec_get_earliest_frame (GstMFCDec * self)
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{
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GstVideoCodecFrame *frame = NULL;
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GList *frames, *l;
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frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (self));
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for (l = frames; l; l = l->next) {
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GstVideoCodecFrame *tmp = l->data;
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if (!frame) {
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frame = tmp;
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} else if (frame->pts > tmp->pts) {
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gst_video_codec_frame_unref (frame);
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frame = tmp;
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} else {
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gst_video_codec_frame_unref (tmp);
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}
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}
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g_list_free (frames);
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return frame;
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}
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static GstFlowReturn
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gst_mfc_dec_dequeue_output (GstMFCDec * self)
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{
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GstFlowReturn ret = GST_FLOW_OK;
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gint mfc_ret;
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GstVideoCodecFrame *frame = NULL;
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GstBuffer *outbuf = NULL;
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struct mfc_buffer *mfc_outbuf = NULL;
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gint width, height;
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gint crop_left, crop_top, crop_width, crop_height;
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GstVideoCodecState *state = NULL;
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gint64 deadline;
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GST_DEBUG_OBJECT (self, "Dequeueing output");
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if (!self->initialized) {
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if ((mfc_ret = mfc_dec_init (self->context, 1)) < 0)
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goto initialize_error;
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self->initialized = TRUE;
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}
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if ((mfc_ret = mfc_dec_output_available (self->context)) == 0)
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return GST_FLOW_OK;
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else if (mfc_ret < 0)
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goto output_available_error;
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mfc_dec_get_output_size (self->context, &width, &height);
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mfc_dec_get_crop_size (self->context, &crop_left, &crop_top, &crop_width,
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&crop_height);
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GST_DEBUG_OBJECT (self, "Have output buffer: width %d, height %d, "
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"crop_left %d, crop_right %d, "
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"crop_width %d, crop_height %d", width, height,
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crop_left, crop_top, crop_width, crop_height);
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state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
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if (!state || state->info.width != crop_width
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|| state->info.height != crop_height) {
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GST_DEBUG_OBJECT (self, "Creating new output state");
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if (state)
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gst_video_codec_state_unref (state);
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state =
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gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
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|
|
GST_VIDEO_FORMAT_NV12, crop_width, crop_height, self->input_state);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((mfc_ret = mfc_dec_dequeue_output (self->context, &mfc_outbuf)) < 0) {
|
|
|
|
if (mfc_ret == -2) {
|
|
|
|
GST_DEBUG_OBJECT (self, "Timeout dequeueing output, trying again");
|
|
|
|
mfc_ret = mfc_dec_dequeue_output (self->context, &mfc_outbuf);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mfc_ret < 0)
|
|
|
|
goto dequeue_error;
|
|
|
|
}
|
|
|
|
|
|
|
|
g_assert (mfc_outbuf != NULL);
|
|
|
|
|
|
|
|
/* FIXME: Replace this by gst_video_decoder_get_frame() with an ID */
|
|
|
|
frame = gst_mfc_dec_get_earliest_frame (self);
|
|
|
|
|
|
|
|
if (frame) {
|
|
|
|
deadline =
|
|
|
|
gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (self), frame);
|
|
|
|
if (deadline < 0) {
|
|
|
|
GST_LOG_OBJECT (self,
|
|
|
|
"Dropping too late frame: deadline %" G_GINT64_FORMAT, deadline);
|
|
|
|
ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
}
|
|
|
|
ret =
|
|
|
|
gst_video_decoder_alloc_output_frame (GST_VIDEO_DECODER (self), frame);
|
|
|
|
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
|
|
goto alloc_error;
|
|
|
|
|
|
|
|
outbuf = frame->output_buffer;
|
|
|
|
} else {
|
|
|
|
outbuf = gst_video_decoder_alloc_output_buffer (GST_VIDEO_DECODER (self));
|
|
|
|
|
|
|
|
if (!outbuf) {
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto alloc_error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* TODO: Here now copy the mfc_outbuf to outbuf using the FIMC detiler */
|
|
|
|
|
|
|
|
if (frame) {
|
|
|
|
ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
|
|
|
|
frame = NULL;
|
|
|
|
} else {
|
|
|
|
ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), outbuf);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
|
|
GST_INFO_OBJECT (self, "Pushing frame returned: %s",
|
|
|
|
gst_flow_get_name (ret));
|
|
|
|
|
|
|
|
done:
|
|
|
|
if (mfc_outbuf) {
|
|
|
|
if ((mfc_ret = mfc_dec_enqueue_output (self->context, mfc_outbuf)) < 0)
|
|
|
|
goto enqueue_error;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (state)
|
|
|
|
gst_video_codec_state_unref (state);
|
|
|
|
if (frame)
|
|
|
|
gst_video_codec_frame_unref (frame);
|
2012-12-23 09:23:16 +00:00
|
|
|
|
|
|
|
return ret;
|
2012-12-23 10:47:50 +00:00
|
|
|
|
|
|
|
initialize_error:
|
|
|
|
{
|
|
|
|
GST_ELEMENT_ERROR (self, LIBRARY, INIT, ("Failed to initialize output"),
|
|
|
|
("mfc_dec_init: %d", mfc_ret));
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
output_available_error:
|
|
|
|
{
|
|
|
|
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
|
|
|
|
("Failed to check if output is available"),
|
|
|
|
("mfc_dec_output_available: %d", mfc_ret));
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
dequeue_error:
|
|
|
|
{
|
|
|
|
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
|
|
|
|
("Failed to dequeue output buffer"), ("mfc_dec_dequeue_output: %d",
|
|
|
|
mfc_ret));
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
alloc_error:
|
|
|
|
{
|
|
|
|
GST_ELEMENT_ERROR (self, CORE, FAILED, ("Failed to allocate output buffer"),
|
|
|
|
(NULL));
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
enqueue_error:
|
|
|
|
{
|
|
|
|
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
|
|
|
|
("Failed to enqueue output buffer"), ("mfc_dec_enqueue_output: %d",
|
|
|
|
mfc_ret));
|
|
|
|
ret = GST_FLOW_ERROR;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static GstFlowReturn
|
|
|
|
gst_mfc_dec_finish (GstVideoDecoder * decoder)
|
|
|
|
{
|
|
|
|
GstMFCDec *self = GST_MFC_DEC (decoder);
|
|
|
|
GstFlowReturn ret;
|
|
|
|
|
|
|
|
GST_DEBUG_OBJECT (self, "Finishing decoding");
|
|
|
|
|
|
|
|
if ((ret = gst_mfc_dec_queue_input (self, NULL)) != GST_FLOW_OK)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
return gst_mfc_dec_dequeue_output (self);
|
2012-12-23 09:23:16 +00:00
|
|
|
}
|
|
|
|
|
2012-12-23 10:47:50 +00:00
|
|
|
static GstFlowReturn
|
|
|
|
gst_mfc_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
|
|
|
|
{
|
|
|
|
GstMFCDec *self = GST_MFC_DEC (decoder);
|
|
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
|
|
|
|
GST_DEBUG_OBJECT (self, "Handling frame");
|
|
|
|
|
|
|
|
/* FIXME: Would be good to assign an ID to input frames */
|
|
|
|
if (frame->pts == GST_CLOCK_TIME_NONE) {
|
|
|
|
GST_ERROR_OBJECT (self, "Only PTS timestamped streams supported so far");
|
|
|
|
gst_video_codec_frame_unref (frame);
|
|
|
|
return GST_FLOW_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ret =
|
|
|
|
gst_mfc_dec_queue_input (self, frame->input_buffer)) != GST_FLOW_OK) {
|
|
|
|
gst_video_codec_frame_unref (frame);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
gst_video_codec_frame_unref (frame);
|
|
|
|
|
|
|
|
return gst_mfc_dec_dequeue_output (self);
|
|
|
|
}
|