static GstBuffer * gst_speex_enc_create_metadata_buffer (GstSpeexEnc * enc) { const GstTagList *user_tags; GstTagList *merged_tags; GstBuffer *comments = NULL; user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (enc)); GST_DEBUG_OBJECT (enc, "upstream tags = %" GST_PTR_FORMAT, enc->tags); GST_DEBUG_OBJECT (enc, "user-set tags = %" GST_PTR_FORMAT, user_tags); /* gst_tag_list_merge() will handle NULL for either or both lists fine */ merged_tags = gst_tag_list_merge (user_tags, enc->tags, gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (enc))); if (merged_tags == NULL) merged_tags = gst_tag_list_new (); GST_DEBUG_OBJECT (enc, "merged tags = %" GST_PTR_FORMAT, merged_tags); comments = gst_tag_list_to_vorbiscomment_buffer (merged_tags, NULL, 0, "Encoded with GStreamer Speexenc"); gst_tag_list_free (merged_tags); GST_BUFFER_OFFSET (comments) = enc->bytes_out; GST_BUFFER_OFFSET_END (comments) = 0; return comments; }
static GstBuffer * gst_celt_enc_create_metadata_buffer (GstCeltEnc * enc) { const GstTagList *tags; GstTagList *empty_tags = NULL; GstBuffer *comments = NULL; tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (enc)); GST_DEBUG_OBJECT (enc, "tags = %" GST_PTR_FORMAT, tags); if (tags == NULL) { /* FIXME: better fix chain of callers to not write metadata at all, * if there is none */ empty_tags = gst_tag_list_new (); tags = empty_tags; } comments = gst_tag_list_to_vorbiscomment_buffer (tags, NULL, 0, "Encoded with GStreamer Celtenc"); GST_BUFFER_OFFSET (comments) = 0; GST_BUFFER_OFFSET_END (comments) = 0; if (empty_tags) gst_tag_list_free (empty_tags); return comments; }
static GstBuffer * gst_opus_enc_create_metadata_buffer (const GstTagList * tags) { GstTagList *empty_tags = NULL; GstBuffer *comments = NULL; GST_DEBUG ("tags = %" GST_PTR_FORMAT, tags); if (tags == NULL) { /* FIXME: better fix chain of callers to not write metadata at all, * if there is none */ empty_tags = gst_tag_list_new_empty (); tags = empty_tags; } comments = gst_tag_list_to_vorbiscomment_buffer (tags, (const guint8 *) "OpusTags", 8, "Encoded with GStreamer Opusenc"); GST_BUFFER_OFFSET (comments) = 0; GST_BUFFER_OFFSET_END (comments) = 0; if (empty_tags) gst_tag_list_unref (empty_tags); return comments; }
static GstFlowReturn gst_vorbis_tag_parse_packet (GstVorbisParse * parse, GstBuffer * buffer) { GstTagList *old_tags, *new_tags; const GstTagList *user_tags; GstVorbisTag *tagger; gchar *encoder = NULL; GstBuffer *new_buf; GstMapInfo map; gboolean do_parse = FALSE; gst_buffer_map (buffer, &map, GST_MAP_READ); /* just pass everything except the comments packet */ if (map.size >= 1 && map.data[0] != 0x03) do_parse = TRUE; gst_buffer_unmap (buffer, &map); if (do_parse) { return GST_VORBIS_PARSE_CLASS (parent_class)->parse_packet (parse, buffer); } tagger = GST_VORBIS_TAG (parse); old_tags = gst_tag_list_from_vorbiscomment_buffer (buffer, (guint8 *) "\003vorbis", 7, &encoder); user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (tagger)); /* build new tag list */ new_tags = gst_tag_list_merge (user_tags, old_tags, gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (tagger))); gst_tag_list_unref (old_tags); new_buf = gst_tag_list_to_vorbiscomment_buffer (new_tags, (guint8 *) "\003vorbis", 7, encoder); gst_buffer_copy_into (new_buf, buffer, GST_BUFFER_COPY_TIMESTAMPS, 0, -1); gst_tag_list_unref (new_tags); g_free (encoder); gst_buffer_unref (buffer); return GST_VORBIS_PARSE_CLASS (parent_class)->parse_packet (parse, new_buf); }
static GstCaps * gst_vp8_enc_get_caps (GstBaseVideoEncoder * base_video_encoder) { GstCaps *caps; const GstVideoState *state; GstTagList *tags = NULL; const GstTagList *iface_tags; GstBuffer *stream_hdr, *vorbiscomment; guint8 *data; GstStructure *s; GValue array = { 0 }; GValue value = { 0 }; state = gst_base_video_encoder_get_state (base_video_encoder); caps = gst_caps_new_simple ("video/x-vp8", "width", G_TYPE_INT, state->width, "height", G_TYPE_INT, state->height, "framerate", GST_TYPE_FRACTION, state->fps_n, state->fps_d, "pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n, state->par_d, NULL); s = gst_caps_get_structure (caps, 0); /* put buffers in a fixed list */ g_value_init (&array, GST_TYPE_ARRAY); g_value_init (&value, GST_TYPE_BUFFER); /* Create Ogg stream-info */ stream_hdr = gst_buffer_new_and_alloc (26); data = GST_BUFFER_DATA (stream_hdr); GST_WRITE_UINT8 (data, 0x4F); GST_WRITE_UINT32_BE (data + 1, 0x56503830); /* "VP80" */ GST_WRITE_UINT8 (data + 5, 0x01); /* stream info header */ GST_WRITE_UINT8 (data + 6, 1); /* Major version 1 */ GST_WRITE_UINT8 (data + 7, 0); /* Minor version 0 */ GST_WRITE_UINT16_BE (data + 8, state->width); GST_WRITE_UINT16_BE (data + 10, state->height); GST_WRITE_UINT24_BE (data + 12, state->par_n); GST_WRITE_UINT24_BE (data + 15, state->par_d); GST_WRITE_UINT32_BE (data + 18, state->fps_n); GST_WRITE_UINT32_BE (data + 22, state->fps_d); GST_BUFFER_FLAG_SET (stream_hdr, GST_BUFFER_FLAG_IN_CAPS); gst_value_set_buffer (&value, stream_hdr); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (stream_hdr); iface_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (base_video_encoder)); if (iface_tags) { vorbiscomment = gst_tag_list_to_vorbiscomment_buffer ((iface_tags) ? iface_tags : tags, (const guint8 *) "OVP80\2 ", 7, "Encoded with GStreamer vp8enc " PACKAGE_VERSION); GST_BUFFER_FLAG_SET (vorbiscomment, GST_BUFFER_FLAG_IN_CAPS); g_value_init (&value, GST_TYPE_BUFFER); gst_value_set_buffer (&value, vorbiscomment); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (vorbiscomment); } gst_structure_set_value (s, "streamheader", &array); g_value_unset (&array); return caps; }
static GstFlowReturn gst_flac_tag_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer) { GstFlacTag *tag; GstFlowReturn ret; GstMapInfo map; gsize size; ret = GST_FLOW_OK; tag = GST_FLAC_TAG (parent); gst_adapter_push (tag->adapter, buffer); /* Initial state, we don't even know if we are dealing with a flac file */ if (tag->state == GST_FLAC_TAG_STATE_INIT) { GstBuffer *id_buffer; if (gst_adapter_available (tag->adapter) < sizeof (FLAC_MAGIC)) goto cleanup; id_buffer = gst_adapter_take_buffer (tag->adapter, FLAC_MAGIC_SIZE); GST_DEBUG_OBJECT (tag, "looking for " FLAC_MAGIC " identifier"); if (gst_buffer_memcmp (id_buffer, 0, FLAC_MAGIC, FLAC_MAGIC_SIZE) == 0) { GST_DEBUG_OBJECT (tag, "pushing " FLAC_MAGIC " identifier buffer"); ret = gst_pad_push (tag->srcpad, id_buffer); if (ret != GST_FLOW_OK) goto cleanup; tag->state = GST_FLAC_TAG_STATE_METADATA_BLOCKS; } else { /* FIXME: does that work well with FLAC files containing ID3v2 tags ? */ gst_buffer_unref (id_buffer); GST_ELEMENT_ERROR (tag, STREAM, WRONG_TYPE, (NULL), (NULL)); ret = GST_FLOW_ERROR; } } /* The fLaC magic string has been skipped, try to detect the beginning * of a metadata block */ if (tag->state == GST_FLAC_TAG_STATE_METADATA_BLOCKS) { guint type; gboolean is_last; const guint8 *block_header; g_assert (tag->metadata_block_size == 0); g_assert (tag->metadata_last_block == FALSE); /* The header of a flac metadata block is 4 bytes long: * 1st bit: indicates whether this is the last metadata info block * 7 next bits: 4 if vorbis comment block * 24 next bits: size of the metadata to follow (big endian) */ if (gst_adapter_available (tag->adapter) < 4) goto cleanup; block_header = gst_adapter_map (tag->adapter, 4); is_last = ((block_header[0] & 0x80) == 0x80); type = block_header[0] & 0x7F; size = (block_header[1] << 16) | (block_header[2] << 8) | block_header[3]; gst_adapter_unmap (tag->adapter); /* The 4 bytes long header isn't included in the metadata size */ tag->metadata_block_size = size + 4; tag->metadata_last_block = is_last; GST_DEBUG_OBJECT (tag, "got metadata block: %" G_GSIZE_FORMAT " bytes, type %d, " "is vorbiscomment: %d, is last: %d", size, type, (type == 0x04), is_last); /* Metadata blocks of type 4 are vorbis comment blocks */ if (type == 0x04) { tag->state = GST_FLAC_TAG_STATE_VC_METADATA_BLOCK; } else { tag->state = GST_FLAC_TAG_STATE_WRITING_METADATA_BLOCK; } } /* Reads a metadata block */ if ((tag->state == GST_FLAC_TAG_STATE_WRITING_METADATA_BLOCK) || (tag->state == GST_FLAC_TAG_STATE_VC_METADATA_BLOCK)) { GstBuffer *metadata_buffer; if (gst_adapter_available (tag->adapter) < tag->metadata_block_size) goto cleanup; metadata_buffer = gst_adapter_take_buffer (tag->adapter, tag->metadata_block_size); /* clear the is-last flag, as the last metadata block will * be the vorbis comment block which we will build ourselves. */ gst_buffer_map (metadata_buffer, &map, GST_MAP_READWRITE); map.data[0] &= (~0x80); gst_buffer_unmap (metadata_buffer, &map); if (tag->state == GST_FLAC_TAG_STATE_WRITING_METADATA_BLOCK) { GST_DEBUG_OBJECT (tag, "pushing metadata block buffer"); ret = gst_pad_push (tag->srcpad, metadata_buffer); if (ret != GST_FLOW_OK) goto cleanup; } else { tag->vorbiscomment = metadata_buffer; } tag->metadata_block_size = 0; tag->state = GST_FLAC_TAG_STATE_METADATA_NEXT_BLOCK; } /* This state is mainly used to be able to stop as soon as we read * a vorbiscomment block from the flac file if we are in an only output * tags mode */ if (tag->state == GST_FLAC_TAG_STATE_METADATA_NEXT_BLOCK) { /* Check if in the previous iteration we read a vorbis comment metadata * block, and stop now if the user only wants to read tags */ if (tag->vorbiscomment != NULL) { guint8 id_data[4]; /* We found some tags, try to parse them and notify the other elements * that we encountered some tags */ GST_DEBUG_OBJECT (tag, "emitting vorbiscomment tags"); gst_buffer_extract (tag->vorbiscomment, 0, id_data, 4); tag->tags = gst_tag_list_from_vorbiscomment_buffer (tag->vorbiscomment, id_data, 4, NULL); if (tag->tags != NULL) { gst_pad_push_event (tag->srcpad, gst_event_new_tag (gst_tag_list_copy (tag->tags))); } gst_buffer_unref (tag->vorbiscomment); tag->vorbiscomment = NULL; } /* Skip to next state */ if (tag->metadata_last_block == FALSE) { tag->state = GST_FLAC_TAG_STATE_METADATA_BLOCKS; } else { tag->state = GST_FLAC_TAG_STATE_ADD_VORBIS_COMMENT; } } /* Creates a vorbis comment block from the metadata which was set * on the gstreamer element, and add it to the flac stream */ if (tag->state == GST_FLAC_TAG_STATE_ADD_VORBIS_COMMENT) { GstBuffer *buffer; const GstTagList *user_tags; GstTagList *merged_tags; /* merge the tag lists */ user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (tag)); if (user_tags != NULL) { merged_tags = gst_tag_list_merge (user_tags, tag->tags, gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (tag))); } else { merged_tags = gst_tag_list_copy (tag->tags); } if (merged_tags == NULL) { /* If we get a NULL list of tags, we must generate a padding block * which is marked as the last metadata block, otherwise we'll * end up with a corrupted flac file. */ GST_WARNING_OBJECT (tag, "No tags found"); buffer = gst_buffer_new_and_alloc (12); if (buffer == NULL) goto no_buffer; gst_buffer_map (buffer, &map, GST_MAP_WRITE); memset (map.data, 0, map.size); map.data[0] = 0x81; /* 0x80 = Last metadata block, * 0x01 = padding block */ gst_buffer_unmap (buffer, &map); } else { guchar header[4]; guint8 fbit[1]; memset (header, 0, sizeof (header)); header[0] = 0x84; /* 0x80 = Last metadata block, * 0x04 = vorbiscomment block */ buffer = gst_tag_list_to_vorbiscomment_buffer (merged_tags, header, sizeof (header), NULL); GST_DEBUG_OBJECT (tag, "Writing tags %" GST_PTR_FORMAT, merged_tags); gst_tag_list_free (merged_tags); if (buffer == NULL) goto no_comment; size = gst_buffer_get_size (buffer); if ((size < 4) || ((size - 4) > 0xFFFFFF)) goto comment_too_long; fbit[0] = 1; /* Get rid of the framing bit at the end of the vorbiscomment buffer * if it exists since libFLAC seems to lose sync because of this * bit in gstflacdec */ if (gst_buffer_memcmp (buffer, size - 1, fbit, 1) == 0) { buffer = gst_buffer_make_writable (buffer); gst_buffer_resize (buffer, 0, size - 1); } } /* The 4 byte metadata block header isn't accounted for in the total * size of the metadata block */ gst_buffer_map (buffer, &map, GST_MAP_WRITE); map.data[1] = (((map.size - 4) & 0xFF0000) >> 16); map.data[2] = (((map.size - 4) & 0x00FF00) >> 8); map.data[3] = ((map.size - 4) & 0x0000FF); gst_buffer_unmap (buffer, &map); GST_DEBUG_OBJECT (tag, "pushing %" G_GSIZE_FORMAT " byte vorbiscomment " "buffer", map.size); ret = gst_pad_push (tag->srcpad, buffer); if (ret != GST_FLOW_OK) { goto cleanup; } tag->state = GST_FLAC_TAG_STATE_AUDIO_DATA; }
static void gst_vp8_enc_set_stream_info (GstVPXEnc * enc, GstCaps * caps, GstVideoInfo * info) { GstStructure *s; GstVideoEncoder *video_encoder; GstBuffer *stream_hdr, *vorbiscomment; const GstTagList *iface_tags; GValue array = { 0, }; GValue value = { 0, }; guint8 *data = NULL; GstMapInfo map; video_encoder = GST_VIDEO_ENCODER (enc); s = gst_caps_get_structure (caps, 0); /* put buffers in a fixed list */ g_value_init (&array, GST_TYPE_ARRAY); g_value_init (&value, GST_TYPE_BUFFER); /* Create Ogg stream-info */ stream_hdr = gst_buffer_new_and_alloc (26); gst_buffer_map (stream_hdr, &map, GST_MAP_WRITE); data = map.data; GST_WRITE_UINT8 (data, 0x4F); GST_WRITE_UINT32_BE (data + 1, 0x56503830); /* "VP80" */ GST_WRITE_UINT8 (data + 5, 0x01); /* stream info header */ GST_WRITE_UINT8 (data + 6, 1); /* Major version 1 */ GST_WRITE_UINT8 (data + 7, 0); /* Minor version 0 */ GST_WRITE_UINT16_BE (data + 8, GST_VIDEO_INFO_WIDTH (info)); GST_WRITE_UINT16_BE (data + 10, GST_VIDEO_INFO_HEIGHT (info)); GST_WRITE_UINT24_BE (data + 12, GST_VIDEO_INFO_PAR_N (info)); GST_WRITE_UINT24_BE (data + 15, GST_VIDEO_INFO_PAR_D (info)); GST_WRITE_UINT32_BE (data + 18, GST_VIDEO_INFO_FPS_N (info)); GST_WRITE_UINT32_BE (data + 22, GST_VIDEO_INFO_FPS_D (info)); gst_buffer_unmap (stream_hdr, &map); GST_BUFFER_FLAG_SET (stream_hdr, GST_BUFFER_FLAG_HEADER); gst_value_set_buffer (&value, stream_hdr); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (stream_hdr); iface_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (video_encoder)); if (iface_tags) { vorbiscomment = gst_tag_list_to_vorbiscomment_buffer (iface_tags, (const guint8 *) "OVP80\2 ", 7, "Encoded with GStreamer vp8enc " PACKAGE_VERSION); GST_BUFFER_FLAG_SET (vorbiscomment, GST_BUFFER_FLAG_HEADER); g_value_init (&value, GST_TYPE_BUFFER); gst_value_set_buffer (&value, vorbiscomment); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (vorbiscomment); } gst_structure_set_value (s, "streamheader", &array); g_value_unset (&array); }
static gboolean gst_vp8_enc_set_format (GstBaseVideoEncoder * base_video_encoder, GstVideoState * state) { GstVP8Enc *encoder; vpx_codec_enc_cfg_t cfg; vpx_codec_err_t status; vpx_image_t *image; guint8 *data = NULL; GstCaps *caps; gboolean ret; encoder = GST_VP8_ENC (base_video_encoder); GST_DEBUG_OBJECT (base_video_encoder, "set_format"); if (encoder->inited) { GST_DEBUG_OBJECT (base_video_encoder, "refusing renegotiation"); return FALSE; } status = vpx_codec_enc_config_default (&vpx_codec_vp8_cx_algo, &cfg, 0); if (status != VPX_CODEC_OK) { GST_ELEMENT_ERROR (encoder, LIBRARY, INIT, ("Failed to get default encoder configuration"), ("%s", gst_vpx_error_name (status))); return FALSE; } /* Scale default bitrate to our size */ cfg.rc_target_bitrate = gst_util_uint64_scale (cfg.rc_target_bitrate, state->width * state->height, cfg.g_w * cfg.g_h); cfg.g_w = state->width; cfg.g_h = state->height; cfg.g_timebase.num = state->fps_d; cfg.g_timebase.den = state->fps_n; cfg.g_error_resilient = encoder->error_resilient; cfg.g_lag_in_frames = encoder->max_latency; cfg.g_threads = encoder->threads; cfg.rc_end_usage = encoder->mode; cfg.rc_2pass_vbr_minsection_pct = encoder->minsection_pct; cfg.rc_2pass_vbr_maxsection_pct = encoder->maxsection_pct; /* Standalone qp-min do not make any sence, with bitrate=0 and qp-min=1 * encoder will use only default qp-max=63. Also this will make * worst possbile quality. */ if (encoder->bitrate != DEFAULT_BITRATE || encoder->max_quantizer != DEFAULT_MAX_QUANTIZER) { cfg.rc_target_bitrate = encoder->bitrate / 1000; cfg.rc_min_quantizer = encoder->min_quantizer; cfg.rc_max_quantizer = encoder->max_quantizer; } else { cfg.rc_min_quantizer = (gint) (63 - encoder->quality * 6.2); cfg.rc_max_quantizer = (gint) (63 - encoder->quality * 6.2); } cfg.rc_dropframe_thresh = encoder->drop_frame; cfg.rc_resize_allowed = encoder->resize_allowed; cfg.kf_mode = VPX_KF_AUTO; cfg.kf_min_dist = 0; cfg.kf_max_dist = encoder->max_keyframe_distance; cfg.g_pass = encoder->multipass_mode; if (encoder->multipass_mode == VPX_RC_FIRST_PASS) { encoder->first_pass_cache_content = g_byte_array_sized_new (4096); } else if (encoder->multipass_mode == VPX_RC_LAST_PASS) { GError *err = NULL; if (!encoder->multipass_cache_file) { GST_ELEMENT_ERROR (encoder, RESOURCE, OPEN_READ, ("No multipass cache file provided"), (NULL)); return FALSE; } if (!g_file_get_contents (encoder->multipass_cache_file, (gchar **) & encoder->last_pass_cache_content.buf, &encoder->last_pass_cache_content.sz, &err)) { GST_ELEMENT_ERROR (encoder, RESOURCE, OPEN_READ, ("Failed to read multipass cache file provided"), ("%s", err->message)); g_error_free (err); return FALSE; } cfg.rc_twopass_stats_in = encoder->last_pass_cache_content; } status = vpx_codec_enc_init (&encoder->encoder, &vpx_codec_vp8_cx_algo, &cfg, 0); if (status != VPX_CODEC_OK) { GST_ELEMENT_ERROR (encoder, LIBRARY, INIT, ("Failed to initialize encoder"), ("%s", gst_vpx_error_name (status))); return FALSE; } /* FIXME move this to a set_speed() function */ status = vpx_codec_control (&encoder->encoder, VP8E_SET_CPUUSED, (encoder->speed == 0) ? 0 : (encoder->speed - 1)); if (status != VPX_CODEC_OK) { GST_WARNING_OBJECT (encoder, "Failed to set VP8E_SET_CPUUSED to 0: %s", gst_vpx_error_name (status)); } status = vpx_codec_control (&encoder->encoder, VP8E_SET_NOISE_SENSITIVITY, encoder->noise_sensitivity); status = vpx_codec_control (&encoder->encoder, VP8E_SET_SHARPNESS, encoder->sharpness); status = vpx_codec_control (&encoder->encoder, VP8E_SET_STATIC_THRESHOLD, encoder->static_threshold); status = vpx_codec_control (&encoder->encoder, VP8E_SET_TOKEN_PARTITIONS, encoder->partitions); #if 0 status = vpx_codec_control (&encoder->encoder, VP8E_SET_ARNR_MAXFRAMES, encoder->arnr_maxframes); status = vpx_codec_control (&encoder->encoder, VP8E_SET_ARNR_STRENGTH, encoder->arnr_strength); status = vpx_codec_control (&encoder->encoder, VP8E_SET_ARNR_TYPE, encoder->arnr_type); #endif #ifdef HAVE_VP8ENC_TUNING status = vpx_codec_control (&encoder->encoder, VP8E_SET_TUNING, encoder->tuning); #endif status = vpx_codec_control (&encoder->encoder, VP8E_SET_ENABLEAUTOALTREF, (encoder->auto_alt_ref_frames ? 1 : 0)); if (status != VPX_CODEC_OK) { GST_WARNING_OBJECT (encoder, "Failed to set VP8E_ENABLEAUTOALTREF to %d: %s", (encoder->auto_alt_ref_frames ? 1 : 0), gst_vpx_error_name (status)); } cfg.g_lag_in_frames = encoder->lag_in_frames; gst_base_video_encoder_set_latency (base_video_encoder, 0, gst_util_uint64_scale (encoder->max_latency, state->fps_d * GST_SECOND, state->fps_n)); encoder->inited = TRUE; /* prepare cached image buffer setup */ image = &encoder->image; memset (image, 0, sizeof (*image)); image->fmt = VPX_IMG_FMT_I420; image->bps = 12; image->x_chroma_shift = image->y_chroma_shift = 1; image->w = image->d_w = state->width; image->h = image->d_h = state->height; image->stride[VPX_PLANE_Y] = gst_video_format_get_row_stride (state->format, 0, state->width); image->stride[VPX_PLANE_U] = gst_video_format_get_row_stride (state->format, 1, state->width); image->stride[VPX_PLANE_V] = gst_video_format_get_row_stride (state->format, 2, state->width); image->planes[VPX_PLANE_Y] = data + gst_video_format_get_component_offset (state->format, 0, state->width, state->height); image->planes[VPX_PLANE_U] = data + gst_video_format_get_component_offset (state->format, 1, state->width, state->height); image->planes[VPX_PLANE_V] = data + gst_video_format_get_component_offset (state->format, 2, state->width, state->height); caps = gst_caps_new_simple ("video/x-vp8", "width", G_TYPE_INT, state->width, "height", G_TYPE_INT, state->height, "framerate", GST_TYPE_FRACTION, state->fps_n, state->fps_d, "pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n, state->par_d, NULL); { GstStructure *s; GstBuffer *stream_hdr, *vorbiscomment; const GstTagList *iface_tags; GValue array = { 0, }; GValue value = { 0, }; s = gst_caps_get_structure (caps, 0); /* put buffers in a fixed list */ g_value_init (&array, GST_TYPE_ARRAY); g_value_init (&value, GST_TYPE_BUFFER); /* Create Ogg stream-info */ stream_hdr = gst_buffer_new_and_alloc (26); data = GST_BUFFER_DATA (stream_hdr); GST_WRITE_UINT8 (data, 0x4F); GST_WRITE_UINT32_BE (data + 1, 0x56503830); /* "VP80" */ GST_WRITE_UINT8 (data + 5, 0x01); /* stream info header */ GST_WRITE_UINT8 (data + 6, 1); /* Major version 1 */ GST_WRITE_UINT8 (data + 7, 0); /* Minor version 0 */ GST_WRITE_UINT16_BE (data + 8, state->width); GST_WRITE_UINT16_BE (data + 10, state->height); GST_WRITE_UINT24_BE (data + 12, state->par_n); GST_WRITE_UINT24_BE (data + 15, state->par_d); GST_WRITE_UINT32_BE (data + 18, state->fps_n); GST_WRITE_UINT32_BE (data + 22, state->fps_d); GST_BUFFER_FLAG_SET (stream_hdr, GST_BUFFER_FLAG_IN_CAPS); gst_value_set_buffer (&value, stream_hdr); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (stream_hdr); iface_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (base_video_encoder)); if (iface_tags) { vorbiscomment = gst_tag_list_to_vorbiscomment_buffer (iface_tags, (const guint8 *) "OVP80\2 ", 7, "Encoded with GStreamer vp8enc " PACKAGE_VERSION); GST_BUFFER_FLAG_SET (vorbiscomment, GST_BUFFER_FLAG_IN_CAPS); g_value_init (&value, GST_TYPE_BUFFER); gst_value_set_buffer (&value, vorbiscomment); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (vorbiscomment); } gst_structure_set_value (s, "streamheader", &array); g_value_unset (&array); } ret = gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (encoder), caps); gst_caps_unref (caps); return ret; }