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/*
* Copyright (C) 2013, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstomxtheoradec.h"
GST_DEBUG_CATEGORY_STATIC (gst_omx_theora_dec_debug_category);
#define GST_CAT_DEFAULT gst_omx_theora_dec_debug_category
/* prototypes */
static gboolean gst_omx_theora_dec_is_format_change (GstOMXVideoDec * dec,
GstOMXPort * port, GstVideoCodecState * state);
static gboolean gst_omx_theora_dec_set_format (GstOMXVideoDec * dec,
GstOMXPort * port, GstVideoCodecState * state);
static GstFlowReturn gst_omx_theora_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_omx_theora_dec_stop (GstVideoDecoder * decoder);
enum
{
PROP_0
};
/* class initialization */
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_omx_theora_dec_debug_category, "omxtheoradec", 0, \
"debug category for gst-omx video decoder base class");
G_DEFINE_TYPE_WITH_CODE (GstOMXTheoraDec, gst_omx_theora_dec,
GST_TYPE_OMX_VIDEO_DEC, DEBUG_INIT);
static void
gst_omx_theora_dec_class_init (GstOMXTheoraDecClass * klass)
{
GstVideoDecoderClass *gstvideodec_class = GST_VIDEO_DECODER_CLASS (klass);
GstOMXVideoDecClass *videodec_class = GST_OMX_VIDEO_DEC_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
videodec_class->is_format_change =
GST_DEBUG_FUNCPTR (gst_omx_theora_dec_is_format_change);
videodec_class->set_format =
GST_DEBUG_FUNCPTR (gst_omx_theora_dec_set_format);
videodec_class->cdata.default_sink_template_caps = "video/x-theora, "
"width=(int) [1,MAX], " "height=(int) [1,MAX]";
gstvideodec_class->handle_frame = gst_omx_theora_dec_handle_frame;
gstvideodec_class->stop = gst_omx_theora_dec_stop;
gst_element_class_set_static_metadata (element_class,
"OpenMAX Theora Video Decoder",
"Codec/Decoder/Video/Hardware",
"Decode Theora video streams",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
gst_omx_set_default_role (&videodec_class->cdata, "video_decoder.theora");
}
static void
gst_omx_theora_dec_init (GstOMXTheoraDec * self)
{
}
static gboolean
gst_omx_theora_dec_is_format_change (GstOMXVideoDec * dec,
GstOMXPort * port, GstVideoCodecState * state)
{
return FALSE;
}
static gboolean
gst_omx_theora_dec_set_format (GstOMXVideoDec * dec, GstOMXPort * port,
GstVideoCodecState * state)
{
gboolean ret;
OMX_PARAM_PORTDEFINITIONTYPE port_def;
gst_omx_port_get_port_definition (port, &port_def);
port_def.format.video.eCompressionFormat = OMX_VIDEO_CodingTheora;
ret = gst_omx_port_update_port_definition (port, &port_def) == OMX_ErrorNone;
return ret;
}
static GstFlowReturn
gst_omx_theora_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstOMXTheoraDec *self = GST_OMX_THEORA_DEC (decoder);
if (GST_BUFFER_FLAG_IS_SET (frame->input_buffer, GST_BUFFER_FLAG_HEADER)) {
guint16 size;
GstBuffer *sbuf;
if (!self->header) {
self->header = gst_buffer_new ();
gst_buffer_copy_into (self->header, frame->input_buffer,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
}
size = gst_buffer_get_size (frame->input_buffer);
size = GUINT16_TO_BE (size);
sbuf = gst_buffer_new_and_alloc (2);
gst_buffer_fill (sbuf, 0, &size, 2);
self->header = gst_buffer_append (self->header, sbuf);
self->header =
gst_buffer_append (self->header, gst_buffer_ref (frame->input_buffer));
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
return GST_FLOW_OK;
}
if (self->header) {
gst_buffer_replace (&GST_OMX_VIDEO_DEC (self)->codec_data, self->header);
gst_buffer_unref (self->header);
self->header = NULL;
}
return
GST_VIDEO_DECODER_CLASS (gst_omx_theora_dec_parent_class)->handle_frame
(GST_VIDEO_DECODER (self), frame);
}
static gboolean
gst_omx_theora_dec_stop (GstVideoDecoder * decoder)
{
GstOMXTheoraDec *self = GST_OMX_THEORA_DEC (decoder);
gst_buffer_replace (&self->header, NULL);
return TRUE;
}
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