static void
gst_rsvg_dec_class_init (GstRsvgDecClass * klass)
{
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (rsvgdec_debug, "rsvgdec", 0, "RSVG decoder");
gst_element_class_set_static_metadata (element_class,
"SVG image decoder", "Codec/Decoder/Image",
"Uses librsvg to decode SVG images",
"Sebastian Dröge <*****@*****.**>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_factory));
gobject_class->finalize = gst_rsvg_dec_finalize;
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_rsvg_dec_stop);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_rsvg_dec_set_format);
video_decoder_class->parse = GST_DEBUG_FUNCPTR (gst_rsvg_dec_parse);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_rsvg_dec_handle_frame);
}
static void
gst_vdp_h264_dec_class_init (GstVdpH264DecClass * klass)
{
GstElementClass *element_class;
GstVideoDecoderClass *video_decoder_class;
element_class = GST_ELEMENT_CLASS (klass);
video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gst_element_class_set_static_metadata (element_class,
"VDPAU H264 Decoder",
"Decoder",
"Decode h264 stream with vdpau",
"Carl-Anton Ingmarsson <*****@*****.**>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
video_decoder_class->start = gst_vdp_h264_dec_start;
video_decoder_class->stop = gst_vdp_h264_dec_stop;
video_decoder_class->flush = gst_vdp_h264_dec_flush;
video_decoder_class->set_format = gst_vdp_h264_dec_set_format;
video_decoder_class->handle_frame = gst_vdp_h264_dec_handle_frame;
}
static void
gst_mpeg2dec_class_init (GstMpeg2decClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gobject_class->finalize = gst_mpeg2dec_finalize;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template_factory));
gst_element_class_set_static_metadata (element_class,
"mpeg1 and mpeg2 video decoder", "Codec/Decoder/Video",
"Uses libmpeg2 to decode MPEG video streams",
"Wim Taymans <*****@*****.**>");
video_decoder_class->open = GST_DEBUG_FUNCPTR (gst_mpeg2dec_open);
video_decoder_class->close = GST_DEBUG_FUNCPTR (gst_mpeg2dec_close);
video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_mpeg2dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_mpeg2dec_stop);
video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_mpeg2dec_flush);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_mpeg2dec_set_format);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_mpeg2dec_handle_frame);
video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_mpeg2dec_finish);
video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_mpeg2dec_decide_allocation);
GST_DEBUG_CATEGORY_INIT (mpeg2dec_debug, "mpeg2dec", 0,
"MPEG-2 Video Decoder");
}
static gboolean
gst_v4l2_video_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event)
{
GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
GST_DEBUG_OBJECT (self, "flush start");
gst_v4l2_object_unlock (self->v4l2output);
gst_v4l2_object_unlock (self->v4l2capture);
break;
default:
break;
}
ret = GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
/* The processing thread should stop now, wait for it */
gst_pad_stop_task (decoder->srcpad);
GST_DEBUG_OBJECT (self, "flush start done");
break;
default:
break;
}
return ret;
}
static gboolean
gst_mfc_dec_negotiate (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstVideoCodecState *state;
GstCaps *allowed_caps;
GstVideoFormat format = GST_VIDEO_FORMAT_NV12;
allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (self));
allowed_caps = gst_caps_truncate (allowed_caps);
allowed_caps = gst_caps_fixate (allowed_caps);
if (!gst_caps_is_empty (allowed_caps)) {
const gchar *format_str;
GstStructure *s = gst_caps_get_structure (allowed_caps, 0);
format_str = gst_structure_get_string (s, "format");
if (format_str)
format = gst_video_format_from_string (format_str);
}
gst_caps_unref (allowed_caps);
self->format = format;
state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
self->format, self->crop_width, self->crop_height, self->input_state);
gst_video_codec_state_unref (state);
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static void
gst_vtdec_class_init (GstVtdecClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
/* Setting up pads and setting metadata should be moved to
base_class_init if you intend to subclass this class. */
gst_element_class_add_static_pad_template (element_class,
&gst_vtdec_sink_template);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
gst_caps_from_string (VIDEO_SRC_CAPS)));
gst_element_class_set_static_metadata (element_class,
"Apple VideoToolbox decoder",
"Codec/Decoder/Video",
"Apple VideoToolbox Decoder",
"Ole André Vadla Ravnås <*****@*****.**>; "
"Alessandro Decina <*****@*****.**>");
gobject_class->finalize = gst_vtdec_finalize;
element_class->set_context = gst_vtdec_set_context;
video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vtdec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vtdec_stop);
video_decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_vtdec_negotiate);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_vtdec_set_format);
video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vtdec_flush);
video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_vtdec_finish);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_vtdec_handle_frame);
}
static void
gst_video_decoder_tester_class_init (GstVideoDecoderTesterClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *audiosink_class = GST_VIDEO_DECODER_CLASS (klass);
static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-test-custom"));
static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw"));
gst_element_class_add_static_pad_template (element_class, &sink_templ);
gst_element_class_add_static_pad_template (element_class, &src_templ);
gst_element_class_set_metadata (element_class,
"VideoDecoderTester", "Decoder/Video", "yep", "me");
audiosink_class->start = gst_video_decoder_tester_start;
audiosink_class->stop = gst_video_decoder_tester_stop;
audiosink_class->flush = gst_video_decoder_tester_flush;
audiosink_class->handle_frame = gst_video_decoder_tester_handle_frame;
audiosink_class->set_format = gst_video_decoder_tester_set_format;
}
static void
gst_libde265_dec_class_init (GstLibde265DecClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
gobject_class->finalize = gst_libde265_dec_finalize;
gobject_class->set_property = gst_libde265_dec_set_property;
gobject_class->get_property = gst_libde265_dec_get_property;
g_object_class_install_property (gobject_class, PROP_MAX_THREADS,
g_param_spec_int ("max-threads", "Maximum decode threads",
"Maximum number of worker threads to spawn. (0 = auto)",
0, G_MAXINT, DEFAULT_MAX_THREADS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
decoder_class->start = GST_DEBUG_FUNCPTR (gst_libde265_dec_start);
decoder_class->stop = GST_DEBUG_FUNCPTR (gst_libde265_dec_stop);
decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_libde265_dec_set_format);
decoder_class->flush = GST_DEBUG_FUNCPTR (gst_libde265_dec_flush);
decoder_class->finish = GST_DEBUG_FUNCPTR (gst_libde265_dec_finish);
decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_libde265_dec_handle_frame);
gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
gst_element_class_add_static_pad_template (gstelement_class, &src_template);
gst_element_class_set_static_metadata (gstelement_class,
"HEVC/H.265 decoder",
"Codec/Decoder/Video",
"Decodes HEVC/H.265 video streams using libde265",
"struktur AG <*****@*****.**>");
}
static void
gst_amc_video_dec_class_init (GstAmcVideoDecClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *videodec_class = GST_VIDEO_DECODER_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_amc_video_dec_finalize;
element_class->change_state =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_change_state);
videodec_class->start = GST_DEBUG_FUNCPTR (gst_amc_video_dec_start);
videodec_class->stop = GST_DEBUG_FUNCPTR (gst_amc_video_dec_stop);
videodec_class->open = GST_DEBUG_FUNCPTR (gst_amc_video_dec_open);
videodec_class->close = GST_DEBUG_FUNCPTR (gst_amc_video_dec_close);
videodec_class->flush = GST_DEBUG_FUNCPTR (gst_amc_video_dec_flush);
videodec_class->set_format = GST_DEBUG_FUNCPTR (gst_amc_video_dec_set_format);
videodec_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_handle_frame);
videodec_class->finish = GST_DEBUG_FUNCPTR (gst_amc_video_dec_finish);
videodec_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_amc_video_dec_decide_allocation);
}
static gboolean
gst_pngdec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstBufferPool *pool = NULL;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
return FALSE;
if (gst_query_get_n_allocation_pools (query) > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
if (pool == NULL)
return FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
static void gst_openh264dec_class_init(GstOpenh264DecClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS(klass);
g_type_class_add_private(klass, sizeof(GstOpenh264DecPrivate));
/* Setting up pads and setting metadata should be moved to
base_class_init if you intend to subclass this class. */
gst_element_class_add_pad_template(GST_ELEMENT_CLASS(klass),
gst_static_pad_template_get(&gst_openh264dec_sink_template));
gst_element_class_add_pad_template(GST_ELEMENT_CLASS(klass),
gst_static_pad_template_get(&gst_openh264dec_src_template));
gst_element_class_set_static_metadata(GST_ELEMENT_CLASS(klass), "OpenH264 video decoder", "Decoder/Video", "OpenH264 video decoder", "Ericsson AB, http://www.ericsson.com");
gobject_class->set_property = gst_openh264dec_set_property;
gobject_class->get_property = gst_openh264dec_get_property;
video_decoder_class->start = GST_DEBUG_FUNCPTR(gst_openh264dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR(gst_openh264dec_stop);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR(gst_openh264dec_set_format);
video_decoder_class->reset = GST_DEBUG_FUNCPTR(gst_openh264dec_reset);
video_decoder_class->finish = GST_DEBUG_FUNCPTR(gst_openh264dec_finish);
video_decoder_class->handle_frame = GST_DEBUG_FUNCPTR(gst_openh264dec_handle_frame);
video_decoder_class->decide_allocation = GST_DEBUG_FUNCPTR(gst_openh264dec_decide_allocation);
}
static gboolean gst_openh264dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstVideoCodecState *state;
GstBufferPool *pool;
guint size, min, max;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (gst_openh264dec_parent_class)->decide_allocation (decoder,
query))
return FALSE;
state = gst_video_decoder_get_output_state (decoder);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_object_unref (pool);
gst_video_codec_state_unref (state);
return TRUE;
}
static void
gst_daala_dec_class_init (GstDaalaDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&daala_dec_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&daala_dec_sink_factory));
gst_element_class_set_static_metadata (element_class,
"Daala video decoder", "Codec/Decoder/Video",
"Decode raw Daala streams to raw YUV video",
"Sebastian Dröge <*****@*****.**>");
video_decoder_class->start = GST_DEBUG_FUNCPTR (daala_dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (daala_dec_stop);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (daala_dec_set_format);
video_decoder_class->parse = GST_DEBUG_FUNCPTR (daala_dec_parse);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (daala_dec_handle_frame);
video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (daala_dec_decide_allocation);
GST_DEBUG_CATEGORY_INIT (daaladec_debug, "daaladec", 0, "Daala decoder");
}
static gboolean
gst_vdp_h264_dec_stop (GstVideoDecoder * video_decoder)
{
GstVdpH264Dec *h264_dec = GST_VDP_H264_DEC (video_decoder);
g_object_unref (h264_dec->dpb);
return GST_VIDEO_DECODER_CLASS (parent_class)->stop (video_decoder);
}
static gboolean
gst_v4l2_video_dec_negotiate (GstVideoDecoder * decoder)
{
GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
/* We don't allow renegotiation without carefull disabling the pool */
if (self->v4l2capture->pool &&
gst_buffer_pool_is_active (GST_BUFFER_POOL (self->v4l2capture->pool)))
return TRUE;
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static gboolean
theora_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GstVideoCodecState *state;
GstBufferPool *pool;
guint size, min, max;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
state = gst_video_decoder_get_output_state (decoder);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
dec->can_crop = FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
dec->can_crop =
gst_query_find_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE,
NULL);
}
if (dec->can_crop) {
GstVideoInfo info = state->info;
GstCaps *caps;
/* Calculate uncropped size */
gst_video_info_set_format (&info, info.finfo->format, dec->info.frame_width,
dec->info.frame_height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_buffer_pool_set_config (pool, config);
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_object_unref (pool);
gst_video_codec_state_unref (state);
return TRUE;
}
static void
gst_vaapidecode_class_init (GstVaapiDecodeClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstElementClass *const element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *const vdec_class = GST_VIDEO_DECODER_CLASS (klass);
GstPadTemplate *pad_template;
GST_DEBUG_CATEGORY_INIT (gst_debug_vaapidecode,
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
gst_vaapi_plugin_base_class_init (GST_VAAPI_PLUGIN_BASE_CLASS (klass));
object_class->finalize = gst_vaapidecode_finalize;
vdec_class->open = GST_DEBUG_FUNCPTR (gst_vaapidecode_open);
vdec_class->close = GST_DEBUG_FUNCPTR (gst_vaapidecode_close);
vdec_class->set_format = GST_DEBUG_FUNCPTR (gst_vaapidecode_set_format);
vdec_class->flush = GST_DEBUG_FUNCPTR (gst_vaapidecode_flush);
vdec_class->parse = GST_DEBUG_FUNCPTR (gst_vaapidecode_parse);
vdec_class->handle_frame = GST_DEBUG_FUNCPTR (gst_vaapidecode_handle_frame);
vdec_class->finish = GST_DEBUG_FUNCPTR (gst_vaapidecode_finish);
#if GST_CHECK_VERSION(1,5,0)
vdec_class->drain = GST_DEBUG_FUNCPTR (gst_vaapidecode_drain);
#endif
vdec_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_vaapidecode_decide_allocation);
#if GST_CHECK_VERSION(1,4,0)
vdec_class->src_query = GST_DEBUG_FUNCPTR (gst_vaapidecode_src_query);
vdec_class->sink_query = GST_DEBUG_FUNCPTR (gst_vaapidecode_sink_query);
#endif
gst_element_class_set_static_metadata (element_class,
"VA-API decoder",
"Codec/Decoder/Video",
GST_PLUGIN_DESC,
"Gwenole Beauchesne <*****@*****.**>, "
"Halley Zhao <*****@*****.**>, "
"Sreerenj Balachandran <*****@*****.**>, "
"Wind Yuan <*****@*****.**>");
/* sink pad */
pad_template = gst_static_pad_template_get (&gst_vaapidecode_sink_factory);
gst_element_class_add_pad_template (element_class, pad_template);
/* src pad */
pad_template = gst_static_pad_template_get (&gst_vaapidecode_src_factory);
gst_element_class_add_pad_template (element_class, pad_template);
}
static gboolean
gst_vdp_h264_dec_start (GstVideoDecoder * video_decoder)
{
GstVdpH264Dec *h264_dec = GST_VDP_H264_DEC (video_decoder);
h264_dec->got_idr = FALSE;
h264_dec->current_sps = -1;
h264_dec->got_idr = FALSE;
h264_dec->dpb = g_object_new (GST_TYPE_H264_DPB, NULL);
gst_h264_dpb_set_output_func (h264_dec->dpb, gst_vdp_h264_dec_output,
h264_dec);
return GST_VIDEO_DECODER_CLASS (parent_class)->start (video_decoder);
}
static gboolean
gst_mfc_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstBufferPool *pool;
GstStructure *config;
guint size, min, max;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
g_assert (gst_query_get_n_allocation_pools (query) > 0);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
g_assert (pool != NULL);
self->has_cropping = FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
self->has_cropping =
gst_query_find_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE,
NULL);
}
if (self->has_cropping) {
GstVideoInfo info;
GstCaps *caps;
/* Calculate uncropped size */
gst_buffer_pool_config_get_params (config, &caps, &size, &min, &max);
gst_video_info_from_caps (&info, caps);
gst_video_info_set_format (&info, self->format, self->width, self->height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_v4l2_video_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query)
{
GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
GstClockTime latency;
gboolean ret = FALSE;
if (gst_v4l2_object_decide_allocation (self->v4l2capture, query))
ret = GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query);
latency = self->v4l2capture->min_buffers * self->v4l2capture->duration;
gst_video_decoder_set_latency (decoder, latency, latency);
return ret;
}
static gboolean
gst_vaapidecode_src_query (GstVideoDecoder * vdec, GstQuery * query)
{
gboolean ret = TRUE;
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (decode);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:{
GstCaps *caps, *filter = NULL;
GstPad *pad = GST_VIDEO_DECODER_SRC_PAD (vdec);
gst_query_parse_caps (query, &filter);
caps = gst_pad_get_pad_template_caps (pad);
if (filter) {
GstCaps *tmp = caps;
caps = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
break;
}
case GST_QUERY_CONTEXT:{
ret = gst_vaapi_handle_context_query (query, plugin->display);
break;
}
default:{
#if GST_CHECK_VERSION(1,4,0)
ret = GST_VIDEO_DECODER_CLASS (gst_vaapidecode_parent_class)->src_query
(vdec, query);
#else
GstPad *pad = GST_VIDEO_DECODER_SRC_PAD (vdec);
GstObject *parent = gst_pad_get_parent (pad);
ret = plugin->srcpad_query (pad, parent, query);
if (parent)
gst_object_unref (parent);
#endif
break;
}
}
return ret;
}
static gboolean
gst_pngdec_sink_event (GstVideoDecoder * bdec, GstEvent * event)
{
const GstSegment *segment;
if (GST_EVENT_TYPE (event) != GST_EVENT_SEGMENT)
goto done;
gst_event_parse_segment (event, &segment);
if (segment->format == GST_FORMAT_TIME)
gst_video_decoder_set_packetized (bdec, TRUE);
else
gst_video_decoder_set_packetized (bdec, FALSE);
done:
return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (bdec, event);
}
static gboolean
gst_vaapidecode_sink_query (GstVideoDecoder * vdec, GstQuery * query)
{
gboolean ret = TRUE;
GstElement *const element = GST_ELEMENT (vdec);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:{
ret = gst_vaapi_handle_context_query (element, query);
break;
}
default:{
ret = GST_VIDEO_DECODER_CLASS (parent_class)->sink_query (vdec, query);
break;
}
}
return ret;
}
static gboolean
gst_vaapidecode_sink_event (GstVideoDecoder * vdec, GstEvent * event)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (vdec);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
{
/* Keep segment event to refer to rate so that
* vaapidecode can handle reverse playback
*/
gst_event_copy_segment (event, &decode->in_segment);
break;
}
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (vdec, event);
}
static void
gst_msdkdec_class_init (GstMsdkDecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoDecoderClass *decoder_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gobject_class->set_property = gst_msdkdec_set_property;
gobject_class->get_property = gst_msdkdec_get_property;
gobject_class->finalize = gst_msdkdec_finalize;
element_class->set_context = gst_msdkdec_set_context;
decoder_class->close = GST_DEBUG_FUNCPTR (gst_msdkdec_close);
decoder_class->start = GST_DEBUG_FUNCPTR (gst_msdkdec_start);
decoder_class->stop = GST_DEBUG_FUNCPTR (gst_msdkdec_stop);
decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_msdkdec_set_format);
decoder_class->finish = GST_DEBUG_FUNCPTR (gst_msdkdec_finish);
decoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_msdkdec_handle_frame);
decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_msdkdec_decide_allocation);
decoder_class->flush = GST_DEBUG_FUNCPTR (gst_msdkdec_flush);
decoder_class->drain = GST_DEBUG_FUNCPTR (gst_msdkdec_drain);
g_object_class_install_property (gobject_class, GST_MSDKDEC_PROP_HARDWARE,
g_param_spec_boolean ("hardware", "Hardware", "Enable hardware decoders",
PROP_HARDWARE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, GST_MSDKDEC_PROP_ASYNC_DEPTH,
g_param_spec_uint ("async-depth", "Async Depth",
"Depth of asynchronous pipeline",
1, 20, PROP_ASYNC_DEPTH_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (element_class, &src_factory);
}
static gboolean
gst_v4l2_video_dec_src_query (GstVideoDecoder * decoder, GstQuery * query)
{
gboolean ret = TRUE;
GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:{
GstCaps *filter, *result = NULL;
GstPad *pad = GST_VIDEO_DECODER_SRC_PAD (decoder);
gst_query_parse_caps (query, &filter);
if (self->probed_srccaps)
result = gst_caps_ref (self->probed_srccaps);
else
result = gst_pad_get_pad_template_caps (pad);
if (filter) {
GstCaps *tmp = result;
result =
gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
}
GST_DEBUG_OBJECT (self, "Returning src caps %" GST_PTR_FORMAT, result);
gst_query_set_caps_result (query, result);
gst_caps_unref (result);
break;
}
default:
ret = GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
break;
}
return ret;
}
static gboolean
gst_v4l2_video_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query)
{
GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
GstClockTime latency;
gboolean ret = FALSE;
if (gst_v4l2_object_decide_allocation (self->v4l2capture, query))
ret = GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query);
if (GST_CLOCK_TIME_IS_VALID (self->v4l2capture->duration)) {
latency = self->v4l2capture->min_buffers * self->v4l2capture->duration;
GST_DEBUG_OBJECT (self, "Setting latency: %" GST_TIME_FORMAT " (%"
G_GUINT32_FORMAT " * %" G_GUINT64_FORMAT, GST_TIME_ARGS (latency),
self->v4l2capture->min_buffers, self->v4l2capture->duration);
gst_video_decoder_set_latency (decoder, latency, latency);
} else {
GST_WARNING_OBJECT (self, "Duration invalid, not setting latency");
}
return ret;
}
static gboolean
gst_vaapidecode_src_query (GstVideoDecoder * vdec, GstQuery * query)
{
gboolean ret = TRUE;
GstElement *const element = GST_ELEMENT (vdec);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:{
GstCaps *caps, *filter = NULL;
GstPad *pad = GST_VIDEO_DECODER_SRC_PAD (vdec);
gst_query_parse_caps (query, &filter);
caps = gst_pad_get_pad_template_caps (pad);
if (filter) {
GstCaps *tmp = caps;
caps = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
break;
}
case GST_QUERY_CONTEXT:{
ret = gst_vaapi_handle_context_query (element, query);
break;
}
default:{
ret = GST_VIDEO_DECODER_CLASS (parent_class)->src_query (vdec, query);
break;
}
}
return ret;
}
static void
gst_theora_dec_class_init (GstTheoraDecClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gobject_class->set_property = theora_dec_set_property;
gobject_class->get_property = theora_dec_get_property;
if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_MV)) {
g_object_class_install_property (gobject_class, PROP_TELEMETRY_MV,
g_param_spec_int ("visualize-motion-vectors",
"Visualize motion vectors",
"Show motion vector selection overlaid on image. "
"Value gives a mask for motion vector (MV) modes to show",
0, 0xffff, THEORA_DEF_TELEMETRY_MV,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_MBMODE)) {
g_object_class_install_property (gobject_class, PROP_TELEMETRY_MBMODE,
g_param_spec_int ("visualize-macroblock-modes",
"Visualize macroblock modes",
"Show macroblock mode selection overlaid on image. "
"Value gives a mask for macroblock (MB) modes to show",
0, 0xffff, THEORA_DEF_TELEMETRY_MBMODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_QI)) {
g_object_class_install_property (gobject_class, PROP_TELEMETRY_QI,
g_param_spec_int ("visualize-quantization-modes",
"Visualize adaptive quantization modes",
"Show adaptive quantization mode selection overlaid on image. "
"Value gives a mask for quantization (QI) modes to show",
0, 0xffff, THEORA_DEF_TELEMETRY_QI,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_BITS)) {
/* FIXME: make this a boolean instead? The value scales the bars so
* they're less wide. Default is to use full width, and anything else
* doesn't seem particularly useful, since the smaller bars just disappear
* then (they almost disappear for a value of 2 already). */
g_object_class_install_property (gobject_class, PROP_TELEMETRY_BITS,
g_param_spec_int ("visualize-bit-usage",
"Visualize bitstream usage breakdown",
"Sets the bitstream breakdown visualization mode. "
"Values influence the width of the bit usage bars to show",
0, 0xff, THEORA_DEF_TELEMETRY_BITS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&theora_dec_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&theora_dec_sink_factory));
gst_element_class_set_static_metadata (element_class,
"Theora video decoder", "Codec/Decoder/Video",
"decode raw theora streams to raw YUV video",
"Benjamin Otte <*****@*****.**>, Wim Taymans <*****@*****.**>");
video_decoder_class->start = GST_DEBUG_FUNCPTR (theora_dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (theora_dec_stop);
video_decoder_class->reset = GST_DEBUG_FUNCPTR (theora_dec_reset);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (theora_dec_set_format);
video_decoder_class->parse = GST_DEBUG_FUNCPTR (theora_dec_parse);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (theora_dec_handle_frame);
video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (theora_dec_decide_allocation);
GST_DEBUG_CATEGORY_INIT (theoradec_debug, "theoradec", 0, "Theora decoder");
}
static gboolean
gst_vtdec_negotiate (GstVideoDecoder * decoder)
{
GstVideoCodecState *output_state = NULL;
GstCaps *peercaps = NULL, *caps = NULL, *templcaps = NULL, *prevcaps = NULL;
GstVideoFormat format;
GstStructure *structure;
const gchar *s;
GstVtdec *vtdec;
OSStatus err = noErr;
GstCapsFeatures *features = NULL;
gboolean output_textures;
vtdec = GST_VTDEC (decoder);
if (vtdec->session)
gst_vtdec_push_frames_if_needed (vtdec, TRUE, FALSE);
output_state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (vtdec));
if (output_state) {
prevcaps = gst_caps_ref (output_state->caps);
gst_video_codec_state_unref (output_state);
}
peercaps = gst_pad_peer_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
if (prevcaps && gst_caps_can_intersect (prevcaps, peercaps)) {
/* The hardware decoder can become (temporarily) unavailable across
* VTDecompressionSessionCreate/Destroy calls. So if the currently configured
* caps are still accepted by downstream we keep them so we don't have to
* destroy and recreate the session.
*/
GST_INFO_OBJECT (vtdec,
"current and peer caps are compatible, keeping current caps");
caps = gst_caps_ref (prevcaps);
} else {
templcaps =
gst_pad_get_pad_template_caps (GST_VIDEO_DECODER_SRC_PAD (decoder));
caps =
gst_caps_intersect_full (peercaps, templcaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (templcaps);
}
gst_caps_unref (peercaps);
caps = gst_caps_truncate (gst_caps_make_writable (caps));
structure = gst_caps_get_structure (caps, 0);
s = gst_structure_get_string (structure, "format");
format = gst_video_format_from_string (s);
features = gst_caps_get_features (caps, 0);
if (features)
features = gst_caps_features_copy (features);
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (vtdec),
format, vtdec->video_info.width, vtdec->video_info.height,
vtdec->input_state);
output_state->caps = gst_video_info_to_caps (&output_state->info);
if (features) {
gst_caps_set_features (output_state->caps, 0, features);
output_textures =
gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
if (output_textures)
gst_caps_set_simple (output_state->caps, "texture-target", G_TYPE_STRING,
#if !HAVE_IOS
GST_GL_TEXTURE_TARGET_RECTANGLE_STR,
#else
GST_GL_TEXTURE_TARGET_2D_STR,
#endif
NULL);
}
gst_caps_unref (caps);
if (!prevcaps || !gst_caps_is_equal (prevcaps, output_state->caps)) {
gboolean renegotiating = vtdec->session != NULL;
GST_INFO_OBJECT (vtdec,
"negotiated output format %" GST_PTR_FORMAT " previous %"
GST_PTR_FORMAT, output_state->caps, prevcaps);
if (vtdec->session)
gst_vtdec_invalidate_session (vtdec);
err = gst_vtdec_create_session (vtdec, format, TRUE);
if (err == noErr) {
GST_INFO_OBJECT (vtdec, "using hardware decoder");
} else if (err == kVTVideoDecoderNotAvailableNowErr && renegotiating) {
GST_WARNING_OBJECT (vtdec, "hw decoder not available anymore");
err = gst_vtdec_create_session (vtdec, format, FALSE);
}
if (err != noErr) {
GST_ELEMENT_ERROR (vtdec, RESOURCE, FAILED, (NULL),
("VTDecompressionSessionCreate returned %d", (int) err));
}
}
if (vtdec->texture_cache != NULL && !output_textures) {
gst_video_texture_cache_free (vtdec->texture_cache);
vtdec->texture_cache = NULL;
}
if (err == noErr && output_textures) {
/* call this regardless of whether caps have changed or not since a new
* local context could have become available
*/
gst_gl_context_helper_ensure_context (vtdec->ctxh);
GST_INFO_OBJECT (vtdec, "pushing textures, context %p old context %p",
vtdec->ctxh->context,
vtdec->texture_cache ? vtdec->texture_cache->ctx : NULL);
if (vtdec->texture_cache
&& vtdec->texture_cache->ctx != vtdec->ctxh->context) {
gst_video_texture_cache_free (vtdec->texture_cache);
vtdec->texture_cache = NULL;
}
if (!vtdec->texture_cache)
setup_texture_cache (vtdec, vtdec->ctxh->context);
}
if (prevcaps)
gst_caps_unref (prevcaps);
if (err != noErr)
return FALSE;
return GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->negotiate (decoder);
}