* <refsect2>
* <title>Example pipeline</title>
* |[
- * gst-launch -v filesrc location=videotestsrc.webm ! matroskademux ! vp8dec ! xvimagesink
+ * gst-launch-1.0 -v filesrc location=videotestsrc.webm ! matroskademux ! vp8dec ! videoconvert ! videoscale ! autovideosink
* ]| This example pipeline will decode a WebM stream and decodes the VP8 video.
* </refsect2>
*/
GST_DEBUG_CATEGORY_STATIC (gst_vp8dec_debug);
#define GST_CAT_DEFAULT gst_vp8dec_debug
-#define DEFAULT_POST_PROCESSING FALSE
-#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE)
-#define DEFAULT_DEBLOCKING_LEVEL 4
-#define DEFAULT_NOISE_LEVEL 0
-#define DEFAULT_THREADS 1
+#define VP8_DECODER_VIDEO_TAG "VP8 video"
-enum
-{
- PROP_0,
- PROP_POST_PROCESSING,
- PROP_POST_PROCESSING_FLAGS,
- PROP_DEBLOCKING_LEVEL,
- PROP_NOISE_LEVEL,
- PROP_THREADS
-};
-
-#define C_FLAGS(v) ((guint) v)
-#define GST_VP8_DEC_TYPE_POST_PROCESSING_FLAGS (gst_vp8_dec_post_processing_flags_get_type())
-static GType
-gst_vp8_dec_post_processing_flags_get_type (void)
-{
- static const GFlagsValue values[] = {
- {C_FLAGS (VP8_DEBLOCK), "Deblock", "deblock"},
- {C_FLAGS (VP8_DEMACROBLOCK), "Demacroblock", "demacroblock"},
- {C_FLAGS (VP8_ADDNOISE), "Add noise", "addnoise"},
- {C_FLAGS (VP8_MFQE), "Multi-frame quality enhancement", "mfqe"},
- {0, NULL, NULL}
- };
- static volatile GType id = 0;
-
- if (g_once_init_enter ((gsize *) & id)) {
- GType _id;
-
- _id = g_flags_register_static ("GstVP8DecPostProcessingFlags", values);
-
- g_once_init_leave ((gsize *) & id, _id);
- }
-
- return id;
-}
-
-#undef C_FLAGS
-
-static void gst_vp8_dec_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_vp8_dec_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static gboolean gst_vp8_dec_start (GstVideoDecoder * decoder);
-static gboolean gst_vp8_dec_stop (GstVideoDecoder * decoder);
-static gboolean gst_vp8_dec_set_format (GstVideoDecoder * decoder,
- GstVideoCodecState * state);
-static gboolean gst_vp8_dec_reset (GstVideoDecoder * decoder, gboolean hard);
-static GstFlowReturn gst_vp8_dec_handle_frame (GstVideoDecoder * decoder,
- GstVideoCodecFrame * frame);
-static gboolean gst_vp8_dec_decide_allocation (GstVideoDecoder * decoder,
- GstQuery * query);
+static void gst_vp8_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt,
+ int width, int height);
+static void gst_vp8_dec_handle_resolution_change (GstVPXDec * dec,
+ vpx_image_t * img, GstVideoFormat fmt);
static GstStaticPadTemplate gst_vp8_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
);
#define parent_class gst_vp8_dec_parent_class
-G_DEFINE_TYPE (GstVP8Dec, gst_vp8_dec, GST_TYPE_VIDEO_DECODER);
+G_DEFINE_TYPE (GstVP8Dec, gst_vp8_dec, GST_TYPE_VPX_DEC);
static void
gst_vp8_dec_class_init (GstVP8DecClass * klass)
{
- GObjectClass *gobject_class;
GstElementClass *element_class;
- GstVideoDecoderClass *base_video_decoder_class;
+ GstVPXDecClass *vpx_class;
- gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
- base_video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
-
- gobject_class->set_property = gst_vp8_dec_set_property;
- gobject_class->get_property = gst_vp8_dec_get_property;
-
- g_object_class_install_property (gobject_class, PROP_POST_PROCESSING,
- g_param_spec_boolean ("post-processing", "Post Processing",
- "Enable post processing", DEFAULT_POST_PROCESSING,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_POST_PROCESSING_FLAGS,
- g_param_spec_flags ("post-processing-flags", "Post Processing Flags",
- "Flags to control post processing",
- GST_VP8_DEC_TYPE_POST_PROCESSING_FLAGS, DEFAULT_POST_PROCESSING_FLAGS,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_DEBLOCKING_LEVEL,
- g_param_spec_uint ("deblocking-level", "Deblocking Level",
- "Deblocking level",
- 0, 16, DEFAULT_DEBLOCKING_LEVEL,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_NOISE_LEVEL,
- g_param_spec_uint ("noise-level", "Noise Level",
- "Noise level",
- 0, 16, DEFAULT_NOISE_LEVEL,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ vpx_class = GST_VPX_DEC_CLASS (klass);
- g_object_class_install_property (gobject_class, PROP_THREADS,
- g_param_spec_uint ("threads", "Max Threads",
- "Maximum number of decoding threads",
- 1, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_vp8_dec_src_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_vp8_dec_sink_template));
+ gst_element_class_add_static_pad_template (element_class,
+ &gst_vp8_dec_sink_template);
+ gst_element_class_add_static_pad_template (element_class,
+ &gst_vp8_dec_src_template);
gst_element_class_set_static_metadata (element_class,
"On2 VP8 Decoder",
"Decode VP8 video streams", "David Schleef <ds@entropywave.com>, "
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
- base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vp8_dec_start);
- base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vp8_dec_stop);
- base_video_decoder_class->reset = GST_DEBUG_FUNCPTR (gst_vp8_dec_reset);
- base_video_decoder_class->set_format =
- GST_DEBUG_FUNCPTR (gst_vp8_dec_set_format);
- base_video_decoder_class->handle_frame =
- GST_DEBUG_FUNCPTR (gst_vp8_dec_handle_frame);
- base_video_decoder_class->decide_allocation = gst_vp8_dec_decide_allocation;
+ vpx_class->video_codec_tag = VP8_DECODER_VIDEO_TAG;
+ vpx_class->codec_algo = &vpx_codec_vp8_dx_algo;
+ vpx_class->set_default_format =
+ GST_DEBUG_FUNCPTR (gst_vp8_dec_set_default_format);
+ vpx_class->handle_resolution_change =
+ GST_DEBUG_FUNCPTR (gst_vp8_dec_handle_resolution_change);
GST_DEBUG_CATEGORY_INIT (gst_vp8dec_debug, "vp8dec", 0, "VP8 Decoder");
}
static void
gst_vp8_dec_init (GstVP8Dec * gst_vp8_dec)
{
- GstVideoDecoder *decoder = (GstVideoDecoder *) gst_vp8_dec;
-
GST_DEBUG_OBJECT (gst_vp8_dec, "gst_vp8_dec_init");
- gst_video_decoder_set_packetized (decoder, TRUE);
- gst_vp8_dec->post_processing = DEFAULT_POST_PROCESSING;
- gst_vp8_dec->post_processing_flags = DEFAULT_POST_PROCESSING_FLAGS;
- gst_vp8_dec->deblocking_level = DEFAULT_DEBLOCKING_LEVEL;
- gst_vp8_dec->noise_level = DEFAULT_NOISE_LEVEL;
-}
-
-static void
-gst_vp8_dec_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstVP8Dec *dec;
-
- g_return_if_fail (GST_IS_VP8_DEC (object));
- dec = GST_VP8_DEC (object);
-
- GST_DEBUG_OBJECT (object, "gst_vp8_dec_set_property");
- switch (prop_id) {
- case PROP_POST_PROCESSING:
- dec->post_processing = g_value_get_boolean (value);
- break;
- case PROP_POST_PROCESSING_FLAGS:
- dec->post_processing_flags = g_value_get_flags (value);
- break;
- case PROP_DEBLOCKING_LEVEL:
- dec->deblocking_level = g_value_get_uint (value);
- break;
- case PROP_NOISE_LEVEL:
- dec->noise_level = g_value_get_uint (value);
- break;
- case PROP_THREADS:
- dec->threads = g_value_get_uint (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_vp8_dec_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstVP8Dec *dec;
-
- g_return_if_fail (GST_IS_VP8_DEC (object));
- dec = GST_VP8_DEC (object);
-
- switch (prop_id) {
- case PROP_POST_PROCESSING:
- g_value_set_boolean (value, dec->post_processing);
- break;
- case PROP_POST_PROCESSING_FLAGS:
- g_value_set_flags (value, dec->post_processing_flags);
- break;
- case PROP_DEBLOCKING_LEVEL:
- g_value_set_uint (value, dec->deblocking_level);
- break;
- case PROP_NOISE_LEVEL:
- g_value_set_uint (value, dec->noise_level);
- break;
- case PROP_THREADS:
- g_value_set_uint (value, dec->threads);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static gboolean
-gst_vp8_dec_start (GstVideoDecoder * decoder)
-{
- GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (decoder);
-
- GST_DEBUG_OBJECT (gst_vp8_dec, "start");
- gst_vp8_dec->decoder_inited = FALSE;
-
- return TRUE;
-}
-
-static gboolean
-gst_vp8_dec_stop (GstVideoDecoder * base_video_decoder)
-{
- GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (base_video_decoder);
-
- GST_DEBUG_OBJECT (gst_vp8_dec, "stop");
-
- if (gst_vp8_dec->output_state) {
- gst_video_codec_state_unref (gst_vp8_dec->output_state);
- gst_vp8_dec->output_state = NULL;
- }
-
- if (gst_vp8_dec->input_state) {
- gst_video_codec_state_unref (gst_vp8_dec->input_state);
- gst_vp8_dec->input_state = NULL;
- }
-
- if (gst_vp8_dec->decoder_inited)
- vpx_codec_destroy (&gst_vp8_dec->decoder);
- gst_vp8_dec->decoder_inited = FALSE;
-
- return TRUE;
-}
-
-static gboolean
-gst_vp8_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
-{
- GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (decoder);
-
- GST_DEBUG_OBJECT (gst_vp8_dec, "set_format");
-
- if (gst_vp8_dec->decoder_inited)
- vpx_codec_destroy (&gst_vp8_dec->decoder);
- gst_vp8_dec->decoder_inited = FALSE;
-
- if (gst_vp8_dec->input_state)
- gst_video_codec_state_unref (gst_vp8_dec->input_state);
- gst_vp8_dec->input_state = gst_video_codec_state_ref (state);
-
- return TRUE;
-}
-
-static gboolean
-gst_vp8_dec_reset (GstVideoDecoder * base_video_decoder, gboolean hard)
-{
- GstVP8Dec *decoder;
-
- GST_DEBUG_OBJECT (base_video_decoder, "reset");
-
- decoder = GST_VP8_DEC (base_video_decoder);
-
- if (decoder->output_state) {
- gst_video_codec_state_unref (decoder->output_state);
- decoder->output_state = NULL;
- }
-
- if (decoder->decoder_inited)
- vpx_codec_destroy (&decoder->decoder);
- decoder->decoder_inited = FALSE;
-
- return TRUE;
-}
-
-static void
-gst_vp8_dec_send_tags (GstVP8Dec * dec)
-{
- GstTagList *list;
-
- list = gst_tag_list_new_empty ();
- gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
- GST_TAG_VIDEO_CODEC, "VP8 video", NULL);
-
- gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (dec),
- gst_event_new_tag (list));
}
static void
-gst_vp8_dec_image_to_buffer (GstVP8Dec * dec, const vpx_image_t * img,
- GstBuffer * buffer)
+gst_vp8_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt, int width,
+ int height)
{
- int deststride, srcstride, height, width, line, comp;
- guint8 *dest, *src;
- GstVideoFrame frame;
- GstVideoInfo *info = &dec->output_state->info;
-
- if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_WRITE)) {
- GST_ERROR_OBJECT (dec, "Could not map video buffer");
- }
-
- for (comp = 0; comp < 3; comp++) {
- dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp);
- src = img->planes[comp];
- width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, comp);
- height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, comp);
- deststride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp);
- srcstride = img->stride[comp];
-
- /* FIXME (Edward) : Do a plane memcpy is srcstride == deststride instead
- * of copying line by line */
- for (line = 0; line < height; line++) {
- memcpy (dest, src, width);
- dest += deststride;
- src += srcstride;
- }
- }
-
- gst_video_frame_unmap (&frame);
-}
-
-static GstFlowReturn
-open_codec (GstVP8Dec * dec, GstVideoCodecFrame * frame)
-{
- int flags = 0;
- vpx_codec_stream_info_t stream_info;
- vpx_codec_caps_t caps;
- vpx_codec_dec_cfg_t cfg;
- GstVideoCodecState *state = dec->input_state;
- vpx_codec_err_t status;
- GstMapInfo minfo;
-
- memset (&stream_info, 0, sizeof (stream_info));
- memset (&cfg, 0, sizeof (cfg));
- stream_info.sz = sizeof (stream_info);
-
- if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
- GST_ERROR_OBJECT (dec, "Failed to map input buffer");
- return GST_FLOW_ERROR;
- }
-
- status = vpx_codec_peek_stream_info (&vpx_codec_vp8_dx_algo,
- minfo.data, minfo.size, &stream_info);
-
- gst_buffer_unmap (frame->input_buffer, &minfo);
-
- if (status != VPX_CODEC_OK) {
- GST_WARNING_OBJECT (dec, "VPX preprocessing error: %s",
- gst_vpx_error_name (status));
- gst_video_decoder_finish_frame (GST_VIDEO_DECODER (dec), frame);
- return GST_FLOW_CUSTOM_SUCCESS_1;
- }
- if (!stream_info.is_kf) {
- GST_WARNING_OBJECT (dec, "No keyframe, skipping");
- gst_video_decoder_finish_frame (GST_VIDEO_DECODER (dec), frame);
- return GST_FLOW_CUSTOM_SUCCESS_1;
- }
-
+ GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
g_assert (dec->output_state == NULL);
dec->output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
- GST_VIDEO_FORMAT_I420, stream_info.w, stream_info.h, state);
+ GST_VIDEO_FORMAT_I420, width, height, dec->input_state);
gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec));
- gst_vp8_dec_send_tags (dec);
-
- cfg.w = stream_info.w;
- cfg.h = stream_info.h;
- cfg.threads = dec->threads;
-
- caps = vpx_codec_get_caps (&vpx_codec_vp8_dx_algo);
-
- if (dec->post_processing) {
- if (!(caps & VPX_CODEC_CAP_POSTPROC)) {
- GST_WARNING_OBJECT (dec, "Decoder does not support post processing");
- } else {
- flags |= VPX_CODEC_USE_POSTPROC;
- }
- }
-
- status =
- vpx_codec_dec_init (&dec->decoder, &vpx_codec_vp8_dx_algo, &cfg, flags);
- if (status != VPX_CODEC_OK) {
- GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
- ("Failed to initialize VP8 decoder"), ("%s",
- gst_vpx_error_name (status)));
- return GST_FLOW_ERROR;
- }
-
- if ((caps & VPX_CODEC_CAP_POSTPROC) && dec->post_processing) {
- vp8_postproc_cfg_t pp_cfg = { 0, };
-
- pp_cfg.post_proc_flag = dec->post_processing_flags;
- pp_cfg.deblocking_level = dec->deblocking_level;
- pp_cfg.noise_level = dec->noise_level;
-
- status = vpx_codec_control (&dec->decoder, VP8_SET_POSTPROC, &pp_cfg);
- if (status != VPX_CODEC_OK) {
- GST_WARNING_OBJECT (dec, "Couldn't set postprocessing settings: %s",
- gst_vpx_error_name (status));
- }
- }
-
- dec->decoder_inited = TRUE;
-
- return GST_FLOW_OK;
+ vpxclass->send_tags (dec);
}
-static GstFlowReturn
-gst_vp8_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
+static void
+gst_vp8_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img,
+ GstVideoFormat fmt)
{
- GstVP8Dec *dec;
- GstFlowReturn ret = GST_FLOW_OK;
- vpx_codec_err_t status;
- vpx_codec_iter_t iter = NULL;
- vpx_image_t *img;
- long decoder_deadline = 0;
- GstClockTimeDiff deadline;
- GstMapInfo minfo;
-
- GST_DEBUG_OBJECT (decoder, "handle_frame");
-
- dec = GST_VP8_DEC (decoder);
-
- if (!dec->decoder_inited) {
- ret = open_codec (dec, frame);
- if (ret == GST_FLOW_CUSTOM_SUCCESS_1)
- return GST_FLOW_OK;
- else if (ret != GST_FLOW_OK)
- return ret;
- }
-
- deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
- if (deadline < 0) {
- decoder_deadline = 1;
- } else if (deadline == G_MAXINT64) {
- decoder_deadline = 0;
- } else {
- decoder_deadline = MAX (1, deadline / GST_MSECOND);
- }
-
- if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
- GST_ERROR_OBJECT (dec, "Failed to map input buffer");
- return GST_FLOW_ERROR;
- }
-
- status = vpx_codec_decode (&dec->decoder,
- minfo.data, minfo.size, NULL, decoder_deadline);
-
- gst_buffer_unmap (frame->input_buffer, &minfo);
-
- if (status) {
- GST_VIDEO_DECODER_ERROR (decoder, 1, LIBRARY, ENCODE,
- ("Failed to decode frame"), ("%s", gst_vpx_error_name (status)), ret);
- return ret;
- }
-
- img = vpx_codec_get_frame (&dec->decoder, &iter);
- if (img) {
- if (img->fmt != VPX_IMG_FMT_I420) {
- vpx_img_free (img);
- GST_ELEMENT_ERROR (decoder, LIBRARY, ENCODE,
- ("Failed to decode frame"), ("Unsupported color format %d",
- img->fmt));
- return GST_FLOW_ERROR;
- }
-
- if (deadline < 0) {
- GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
- (double) -deadline / GST_SECOND);
- gst_video_decoder_drop_frame (decoder, frame);
- } else {
- ret = gst_video_decoder_allocate_output_frame (decoder, frame);
-
- if (ret == GST_FLOW_OK) {
- gst_vp8_dec_image_to_buffer (dec, img, frame->output_buffer);
- ret = gst_video_decoder_finish_frame (decoder, frame);
- } else {
- gst_video_decoder_finish_frame (decoder, frame);
- }
+ GstVideoInfo *info;
+ GstVideoCodecState *new_output_state;
+
+ info = &dec->output_state->info;
+ if (GST_VIDEO_INFO_WIDTH (info) != img->d_w
+ || GST_VIDEO_INFO_HEIGHT (info) != img->d_h) {
+ GST_DEBUG_OBJECT (dec,
+ "Changed output resolution was %d x %d now is got %u x %u (display %u x %u)",
+ GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), img->w,
+ img->h, img->d_w, img->d_h);
+
+ new_output_state =
+ gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
+ GST_VIDEO_FORMAT_I420, img->d_w, img->d_h, dec->output_state);
+ if (dec->output_state) {
+ gst_video_codec_state_unref (dec->output_state);
}
-
- vpx_img_free (img);
-
- while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
- GST_WARNING_OBJECT (decoder, "Multiple decoded frames... dropping");
- vpx_img_free (img);
- }
- } else {
- /* Invisible frame */
- GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
- gst_video_decoder_finish_frame (decoder, frame);
- }
-
- return ret;
-}
-
-static gboolean
-gst_vp8_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
-{
- GstBufferPool *pool;
- GstStructure *config;
-
- if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
- return FALSE;
-
- g_assert (gst_query_get_n_allocation_pools (query) > 0);
- gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
- g_assert (pool != NULL);
-
- 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->output_state = new_output_state;
+ /* No need to call negotiate() here, it will be automatically called
+ * by allocate_output_frame()*/
}
- gst_buffer_pool_set_config (pool, config);
- gst_object_unref (pool);
-
- return TRUE;
}
#endif /* HAVE_VP8_DECODER */
projects / platform / upstream / gst-plugins-good.git / blobdiff