示例#1
0
static GstTagList *
gst_id3demux_merge_tags (GstTagDemux * tagdemux, const GstTagList * start_tags,
    const GstTagList * end_tags)
{
  GstID3Demux *id3demux;
  GstTagList *merged;
  gboolean prefer_v1;

  id3demux = GST_ID3DEMUX (tagdemux);

  GST_OBJECT_LOCK (id3demux);
  prefer_v1 = id3demux->prefer_v1;
  GST_OBJECT_UNLOCK (id3demux);

  /* we merge in REPLACE mode, so put the less important tags first */
  if (prefer_v1)
    merged = gst_tag_list_merge (start_tags, end_tags, GST_TAG_MERGE_REPLACE);
  else
    merged = gst_tag_list_merge (end_tags, start_tags, GST_TAG_MERGE_REPLACE);

  GST_LOG_OBJECT (id3demux, "start  tags: %" GST_PTR_FORMAT, start_tags);
  GST_LOG_OBJECT (id3demux, "end    tags: %" GST_PTR_FORMAT, end_tags);
  GST_LOG_OBJECT (id3demux, "merged tags: %" GST_PTR_FORMAT, merged);

  return merged;
}
static void
gst_shout2send_set_metadata (GstShout2send * shout2send)
{
  const GstTagList *user_tags;
  GstTagList *copy;
  char *tempmetadata;
  shout_metadata_t *pmetadata;

  g_return_if_fail (shout2send != NULL);
  user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (shout2send));
  if ((shout2send->tags == NULL) && (user_tags == NULL)) {
    return;
  }
  copy = gst_tag_list_merge (user_tags, shout2send->tags,
      gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (shout2send)));
  /* lets get the artist and song tags */
  tempmetadata = NULL;
  gst_tag_list_foreach ((GstTagList *) copy, set_shout_metadata,
      (gpointer) & tempmetadata);
  if (tempmetadata) {
    pmetadata = shout_metadata_new ();
    shout_metadata_add (pmetadata, "song", tempmetadata);
    shout_set_metadata (shout2send->conn, pmetadata);
    shout_metadata_free (pmetadata);
  }

  gst_tag_list_unref (copy);
}
示例#3
0
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 gboolean
_event_probe (GstPad * pad, GstEvent * event, PrivateStream * ps)
{
  if (GST_EVENT_TYPE (event) == GST_EVENT_TAG) {
    GstTagList *tl = NULL, *tmp;

    gst_event_parse_tag (event, &tl);
    GST_DEBUG_OBJECT (pad, "tags %" GST_PTR_FORMAT, tl);
    DISCO_LOCK (ps->dc);
    /* If preroll is complete, drop these tags - the collected information is
     * possibly already being processed and adding more tags would be racy */
    if (G_LIKELY (ps->dc->priv->processing)) {
      GST_DEBUG_OBJECT (pad, "private stream %p old tags %" GST_PTR_FORMAT, ps,
          ps->tags);
      tmp = gst_tag_list_merge (ps->tags, tl, GST_TAG_MERGE_APPEND);
      if (ps->tags)
        gst_tag_list_free (ps->tags);
      ps->tags = tmp;
      GST_DEBUG_OBJECT (pad, "private stream %p new tags %" GST_PTR_FORMAT, ps,
          tmp);
    } else
      GST_DEBUG_OBJECT (pad, "Dropping tags since preroll is done");
    DISCO_UNLOCK (ps->dc);
  }

  return TRUE;
}
示例#5
0
/**
 * gst_toc_merge_tags:
 * @toc: A #GstToc instance
 * @tags: (allow-none): A #GstTagList or %NULL
 * @mode: A #GstTagMergeMode
 *
 * Merge @tags into the existing tags of @toc using @mode.
 */
void
gst_toc_merge_tags (GstToc * toc, GstTagList * tags, GstTagMergeMode mode)
{
  g_return_if_fail (toc != NULL);
  g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (toc)));

  if (!toc->tags) {
    toc->tags = gst_tag_list_ref (tags);
  } else {
    GstTagList *tmp = gst_tag_list_merge (toc->tags, tags, mode);
    gst_tag_list_unref (toc->tags);
    toc->tags = tmp;
  }
}
GST_END_TEST
GST_START_TEST (test_merge_modes)
{
  GstTagMergeMode mode;

  for (mode = GST_TAG_MERGE_REPLACE_ALL; mode < GST_TAG_MERGE_COUNT; mode++) {
    gint i;

    for (i = 0; i < 4; i++) {
      GstElement *enc;
      GstTagSetter *setter;
      GstTagList *list1, *list2, *merged;

      enc = g_object_new (GST_TYPE_DUMMY_ENC, NULL);
      fail_unless (enc != NULL);

      setter = GST_TAG_SETTER (enc);
      list1 = gst_tag_list_new_empty ();
      list2 = gst_tag_list_new_empty ();

      /* i = 0: -     -
       * i = 1: list1 -
       * i = 2: -     list2
       * i = 3: list1 list2 */

      if (i % 2 == 1) {
        gst_tag_list_add (list1, GST_TAG_MERGE_APPEND, GST_TAG_ARTIST,
            "artist1", NULL);
      }
      if (i > 1) {
        gst_tag_list_add (list2, GST_TAG_MERGE_APPEND, GST_TAG_ARTIST,
            "artist2", NULL);
      }

      gst_tag_setter_merge_tags (setter, list1, GST_TAG_MERGE_APPEND);
      gst_tag_setter_merge_tags (setter, list2, mode);

      merged = gst_tag_list_merge (list1, list2, mode);

      fail_unless_equals_int (tag_list_length (gst_tag_setter_get_tag_list
              (setter)), tag_list_length (merged));

      gst_tag_list_unref (list1);
      gst_tag_list_unref (list2);
      gst_tag_list_unref (merged);
      gst_object_unref (enc);
    }
  }
}
示例#7
0
/**
 * gst_toc_entry_merge_tags:
 * @entry: A #GstTocEntry instance
 * @tags: (allow-none): A #GstTagList or %NULL
 * @mode: A #GstTagMergeMode
 *
 * Merge @tags into the existing tags of @entry using @mode.
 */
void
gst_toc_entry_merge_tags (GstTocEntry * entry, GstTagList * tags,
    GstTagMergeMode mode)
{
  g_return_if_fail (entry != NULL);
  g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (entry)));

  if (!entry->tags) {
    entry->tags = gst_tag_list_ref (tags);
  } else {
    GstTagList *tmp = gst_tag_list_merge (entry->tags, tags, mode);
    gst_tag_list_unref (entry->tags);
    entry->tags = tmp;
  }
}
示例#8
0
static gboolean
bus_handler (GstBus * bus, GstMessage * message, gpointer data)
{
  GMainLoop *loop = (GMainLoop *) data;

  switch (message->type) {
    case GST_MESSAGE_EOS:
      g_main_loop_quit (loop);
      break;
    case GST_MESSAGE_WARNING:
    case GST_MESSAGE_ERROR:{
      GError *gerror;

      gchar *debug;

      gst_message_parse_error (message, &gerror, &debug);
      gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
      g_error_free (gerror);
      g_free (debug);
      g_main_loop_quit (loop);
      break;
    }
    case GST_MESSAGE_TAG:{
      if (received_tags == NULL) {
        gst_message_parse_tag (message, &received_tags);
      } else {
        GstTagList *tl = NULL, *ntl = NULL;

        gst_message_parse_tag (message, &tl);
        if (tl) {
          ntl = gst_tag_list_merge (received_tags, tl, GST_TAG_MERGE_PREPEND);
          if (ntl) {
            GST_LOG ("taglists merged: %" GST_PTR_FORMAT, ntl);
            gst_tag_list_free (received_tags);
            received_tags = ntl;
          }
          gst_tag_list_free (tl);
        }
      }
      break;
    }
    default:
      break;
  }

  return TRUE;
}
示例#9
0
void
gst_kate_util_decoder_base_add_tags (GstKateDecoderBase * decoder,
    GstTagList * tags, gboolean take_ownership_of_tags)
{
  if (!decoder->tags) {
    if (!take_ownership_of_tags)
      tags = gst_tag_list_ref (tags);
    decoder->tags = tags;
  } else {
    GstTagList *old = decoder->tags;
    decoder->tags = gst_tag_list_merge (old, tags, GST_TAG_MERGE_REPLACE);
    gst_tag_list_unref (old);
    if (take_ownership_of_tags)
      gst_tag_list_unref (tags);
  }
  decoder->tags_changed = TRUE;
}
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);
}
示例#11
0
static GstFlowReturn
gst_wavenc_write_tags (GstWavEnc * wavenc)
{
  const GstTagList *user_tags;
  GstTagList *tags;
  guint size;
  GstBuffer *buf;
  GstByteWriter bw;

  g_return_val_if_fail (wavenc != NULL, GST_FLOW_OK);

  user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (wavenc));
  if ((!wavenc->tags) && (!user_tags)) {
    GST_DEBUG_OBJECT (wavenc, "have no tags");
    return GST_FLOW_OK;
  }
  tags =
      gst_tag_list_merge (user_tags, wavenc->tags,
      gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (wavenc)));

  GST_DEBUG_OBJECT (wavenc, "writing tags");

  gst_byte_writer_init_with_size (&bw, 1024, FALSE);

  /* add LIST INFO chunk */
  gst_byte_writer_put_data (&bw, (const guint8 *) "LIST", 4);
  gst_byte_writer_put_uint32_le (&bw, 0);
  gst_byte_writer_put_data (&bw, (const guint8 *) "INFO", 4);

  /* add tags */
  gst_tag_list_foreach (tags, gst_wavparse_tags_foreach, &bw);

  /* sets real size of LIST INFO chunk */
  size = gst_byte_writer_get_pos (&bw);
  gst_byte_writer_set_pos (&bw, 4);
  gst_byte_writer_put_uint32_le (&bw, size - 8);

  gst_tag_list_unref (tags);

  buf = gst_byte_writer_reset_and_get_buffer (&bw);
  wavenc->meta_length += gst_buffer_get_size (buf);
  return gst_pad_push (wavenc->srcpad, buf);
}
示例#12
0
/**
 * gst_aggregator_merge_tags:
 * @self: a #GstAggregator
 * @tags: a #GstTagList to merge
 * @mode: the #GstTagMergeMode to use
 *
 * Adds tags to so-called pending tags, which will be processed
 * before pushing out data downstream.
 *
 * Note that this is provided for convenience, and the subclass is
 * not required to use this and can still do tag handling on its own.
 *
 * MT safe.
 */
void
gst_aggregator_merge_tags (GstAggregator * self,
    const GstTagList * tags, GstTagMergeMode mode)
{
  GstTagList *otags;

  g_return_if_fail (GST_IS_AGGREGATOR (self));
  g_return_if_fail (tags == NULL || GST_IS_TAG_LIST (tags));

  /* FIXME Check if we can use OBJECT lock here! */
  GST_OBJECT_LOCK (self);
  if (tags)
    GST_DEBUG_OBJECT (self, "merging tags %" GST_PTR_FORMAT, tags);
  otags = self->priv->tags;
  self->priv->tags = gst_tag_list_merge (self->priv->tags, tags, mode);
  if (otags)
    gst_tag_list_unref (otags);
  self->priv->tags_changed = TRUE;
  GST_OBJECT_UNLOCK (self);
}
示例#13
0
static void
gst_kate_enc_set_metadata (GstKateEnc * ke)
{
  GstTagList *merged_tags;
  const GstTagList *user_tags;

  user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (ke));

  GST_DEBUG_OBJECT (ke, "upstream tags = %" GST_PTR_FORMAT, ke->tags);
  GST_DEBUG_OBJECT (ke, "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, ke->tags,
      gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (ke)));

  if (merged_tags) {
    GST_DEBUG_OBJECT (ke, "merged   tags = %" GST_PTR_FORMAT, merged_tags);
    gst_tag_list_foreach (merged_tags, gst_kate_enc_metadata_set1, ke);
    gst_tag_list_unref (merged_tags);
  }
}
static void
gst_vorbis_enc_set_metadata (GstVorbisEnc * enc)
{
  GstTagList *merged_tags;
  const GstTagList *user_tags;

  vorbis_comment_init (&enc->vc);

  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) {
    GST_DEBUG_OBJECT (enc, "merged   tags = %" GST_PTR_FORMAT, merged_tags);
    gst_tag_list_foreach (merged_tags, gst_vorbis_enc_metadata_set1, enc);
    gst_tag_list_unref (merged_tags);
  }
}
示例#15
0
static GstTagList *
gst_tag_mux_get_tags (GstTagMux * mux)
{
  GstTagSetter *tagsetter = GST_TAG_SETTER (mux);
  const GstTagList *tagsetter_tags;
  GstTagMergeMode merge_mode;

  if (mux->priv->final_tags)
    return mux->priv->final_tags;

  tagsetter_tags = gst_tag_setter_get_tag_list (tagsetter);
  merge_mode = gst_tag_setter_get_tag_merge_mode (tagsetter);

  GST_LOG_OBJECT (mux, "merging tags, merge mode = %d", merge_mode);
  GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, mux->priv->event_tags);
  GST_LOG_OBJECT (mux, "set   tags: %" GST_PTR_FORMAT, tagsetter_tags);

  mux->priv->final_tags =
      gst_tag_list_merge (tagsetter_tags, mux->priv->event_tags, merge_mode);

  GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, mux->priv->final_tags);

  return mux->priv->final_tags;
}
示例#16
0
GstFlowReturn
gst_kate_util_decoder_base_chain_kate_packet (GstKateDecoderBase * decoder,
    GstElement * element, GstPad * pad, GstBuffer * buf, GstPad * srcpad,
    GstPad * tagpad, GstCaps ** src_caps, const kate_event ** ev)
{
  kate_packet kp;
  int ret;
  GstFlowReturn rflow = GST_FLOW_OK;
  gboolean is_header;
  guint8 *data;
  gsize size;
  guint8 header[1];

  size = gst_buffer_extract (buf, 0, header, 1);

  GST_DEBUG_OBJECT (element, "got kate packet, %u bytes, type %02x",
      gst_buffer_get_size (buf), size == 0 ? -1 : header[0]);

  is_header = size > 0 && (header[0] & 0x80);

  if (!is_header && decoder->tags) {
    /* after we've processed headers, send any tags before processing the data packet */
    GST_DEBUG_OBJECT (element, "Not a header, sending tags for pad %s:%s",
        GST_DEBUG_PAD_NAME (tagpad));
    gst_element_found_tags_for_pad (element, tagpad, decoder->tags);
    decoder->tags = NULL;
  }

  data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
  kate_packet_wrap (&kp, size, data);
  ret = kate_high_decode_packetin (&decoder->k, &kp, ev);
  gst_buffer_unmap (buf, data, size);

  if (G_UNLIKELY (ret < 0)) {
    GST_ELEMENT_ERROR (element, STREAM, DECODE, (NULL),
        ("Failed to decode Kate packet: %s",
            gst_kate_util_get_error_message (ret)));
    return GST_FLOW_ERROR;
  }

  if (G_UNLIKELY (ret > 0)) {
    GST_DEBUG_OBJECT (element,
        "kate_high_decode_packetin has received EOS packet");
  }

  /* headers may be interesting to retrieve information from */
  if (G_UNLIKELY (is_header)) {
    switch (header[0]) {
      case 0x80:               /* ID header */
        GST_INFO_OBJECT (element, "Parsed ID header: language %s, category %s",
            decoder->k.ki->language, decoder->k.ki->category);
        if (src_caps) {
          if (*src_caps) {
            gst_caps_unref (*src_caps);
            *src_caps = NULL;
          }
          if (strcmp (decoder->k.ki->category, "K-SPU") == 0 ||
              strcmp (decoder->k.ki->category, "spu-subtitles") == 0) {
            *src_caps = gst_caps_new_empty_simple ("video/x-dvd-subpicture");
          } else if (decoder->k.ki->text_markup_type == kate_markup_none) {
            *src_caps = gst_caps_new_empty_simple ("text/plain");
          } else {
            *src_caps = gst_caps_new_empty_simple ("text/x-pango-markup");
          }
          GST_INFO_OBJECT (srcpad, "Setting caps: %" GST_PTR_FORMAT, *src_caps);
          if (!gst_pad_set_caps (srcpad, *src_caps)) {
            GST_ERROR_OBJECT (srcpad, "Failed to set caps %" GST_PTR_FORMAT,
                *src_caps);
          }
        }
        if (decoder->k.ki->language && *decoder->k.ki->language) {
          GstTagList *old = decoder->tags, *tags = gst_tag_list_new_empty ();
          if (tags) {
            gchar *lang_code;

            /* en_GB -> en */
            lang_code = g_ascii_strdown (decoder->k.ki->language, -1);
            g_strdelimit (lang_code, NULL, '\0');
            gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_LANGUAGE_CODE,
                lang_code, NULL);
            g_free (lang_code);
            /* TODO: category - where should it go ? */
            decoder->tags =
                gst_tag_list_merge (decoder->tags, tags, GST_TAG_MERGE_REPLACE);
            gst_tag_list_free (tags);
            if (old)
              gst_tag_list_free (old);
          }
        }

        /* update properties */
        if (decoder->language)
          g_free (decoder->language);
        decoder->language = g_strdup (decoder->k.ki->language);
        if (decoder->category)
          g_free (decoder->category);
        decoder->category = g_strdup (decoder->k.ki->category);
        decoder->original_canvas_width = decoder->k.ki->original_canvas_width;
        decoder->original_canvas_height = decoder->k.ki->original_canvas_height;

        /* we can now send away any event we've delayed, as the src pad now has caps */
        gst_kate_util_decoder_base_drain_event_queue (decoder);

        break;

      case 0x81:               /* Vorbis comments header */
        GST_INFO_OBJECT (element, "Parsed comments header");
        {
          gchar *encoder = NULL;
          GstTagList *old = decoder->tags, *list =
              gst_tag_list_from_vorbiscomment_buffer (buf,
              (const guint8 *) "\201kate\0\0\0\0", 9, &encoder);
          if (list) {
            decoder->tags =
                gst_tag_list_merge (decoder->tags, list, GST_TAG_MERGE_REPLACE);
            gst_tag_list_free (list);
          }

          if (!decoder->tags) {
            GST_ERROR_OBJECT (element, "failed to decode comment header");
            decoder->tags = gst_tag_list_new_empty ();
          }
          if (encoder) {
            gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
                GST_TAG_ENCODER, encoder, NULL);
            g_free (encoder);
          }
          gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
              GST_TAG_SUBTITLE_CODEC, "Kate", NULL);
          gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
              GST_TAG_ENCODER_VERSION, decoder->k.ki->bitstream_version_major,
              NULL);

          if (old)
            gst_tag_list_free (old);

          if (decoder->initialized) {
            gst_element_found_tags_for_pad (element, tagpad, decoder->tags);
            decoder->tags = NULL;
          } else {
            /* Only push them as messages for the time being. *
             * They will be pushed on the pad once the decoder is initialized */
            gst_element_post_message (element,
                gst_message_new_tag (GST_OBJECT (element),
                    gst_tag_list_copy (decoder->tags)));
          }
        }
        break;

      default:
        break;
    }
  }
#if ((KATE_VERSION_MAJOR<<16)|(KATE_VERSION_MINOR<<8)|KATE_VERSION_PATCH) >= 0x000400
  else if (*ev && (*ev)->meta) {
    int count = kate_meta_query_count ((*ev)->meta);
    if (count > 0) {
      GstTagList *evtags = gst_tag_list_new_empty ();
      int idx;
      GST_DEBUG_OBJECT (decoder, "Kate event has %d attached metadata", count);
      for (idx = 0; idx < count; ++idx) {
        const char *tag, *value;
        size_t len;
        if (kate_meta_query ((*ev)->meta, idx, &tag, &value, &len) < 0) {
          GST_WARNING_OBJECT (decoder, "Failed to retrieve metadata %d", idx);
        } else {
          if (gst_kate_util_is_utf8_string (value, len)) {
            gchar *compound = g_strdup_printf ("%s=%s", tag, value);
            GST_DEBUG_OBJECT (decoder, "Metadata %d: %s=%s (%zu bytes)", idx,
                tag, value, len);
            gst_tag_list_add (evtags, GST_TAG_MERGE_APPEND,
                GST_TAG_EXTENDED_COMMENT, compound, NULL);
            g_free (compound);
          } else {
            GST_INFO_OBJECT (decoder,
                "Metadata %d, (%s, %zu bytes) is binary, ignored", idx, tag,
                len);
          }
        }
      }
      if (gst_tag_list_is_empty (evtags))
        gst_tag_list_free (evtags);
      else
        gst_element_found_tags_for_pad (element, tagpad, evtags);
    }
  }
#endif

  return rflow;
}
示例#17
0
static gboolean
message_loop_to_state_change (MetadataExtractor *extractor,
			      GstState           state)
{
	GstBus         *bus;
	GstMessageType  events;

	g_return_val_if_fail (extractor, FALSE);
	g_return_val_if_fail (extractor->playbin, FALSE);

	bus = gst_element_get_bus (extractor->playbin);

	events = (GST_MESSAGE_TAG | GST_MESSAGE_STATE_CHANGED | GST_MESSAGE_ERROR | GST_MESSAGE_EOS);

	for (;;) {
		GstMessage *message;

		message = gst_bus_timed_pop_filtered (bus, GST_SECOND * 5, events);
		if (message == NULL)
			goto timed_out;

		switch (GST_MESSAGE_TYPE (message)) {
		case GST_MESSAGE_STATE_CHANGED: {
			GstState old_state;
			GstState new_state;

			old_state = new_state = GST_STATE_NULL;

			gst_message_parse_state_changed (message, &old_state, &new_state, NULL);
			if (old_state == new_state)
				break;

			/* we only care about playbin (pipeline) state changes */
			if (GST_MESSAGE_SRC (message) != GST_OBJECT (extractor->playbin))
				break;

			if ((old_state == GST_STATE_READY) && (new_state == GST_STATE_PAUSED))
				update_stream_info (extractor);
			else if ((old_state == GST_STATE_PAUSED) && (new_state == GST_STATE_READY))
				reset_extractor_data (extractor);

			if (new_state == state) {
				gst_message_unref (message);
				goto success;
			}

			break;
		}

		case GST_MESSAGE_TAG: {
			GstTagList *tag_list;
			GstTagList *result;

			tag_list = NULL;
			gst_message_parse_tag (message, &tag_list);
			result = gst_tag_list_merge (extractor->tagcache, tag_list, GST_TAG_MERGE_KEEP);
			if (extractor->tagcache != NULL)
				gst_tag_list_free (extractor->tagcache);
			extractor->tagcache = result;

			gst_tag_list_free (tag_list);

			break;
		}

		case GST_MESSAGE_ERROR: {
			gchar  *debug    = NULL;
			GError *gsterror = NULL;

			gst_message_parse_error (message, &gsterror, &debug);

			/*g_warning ("Error: %s (%s)", gsterror->message, debug);*/

			g_error_free (gsterror);
			gst_message_unref (message);
			g_free (debug);
			goto error;
		}
			break;

		case GST_MESSAGE_EOS: {
			g_warning ("Media file could not be played.");
			gst_message_unref (message);
			goto error;
		}
			break;

		default:
			g_assert_not_reached ();
			break;
		}

		gst_message_unref (message);
	}

	g_assert_not_reached ();

 success:
	/* state change succeeded */
	GST_DEBUG ("state change to %s succeeded", gst_element_state_get_name (state));
	return TRUE;

 timed_out:
	/* it's taking a long time to open  */
	GST_DEBUG ("state change to %s timed out, returning success", gst_element_state_get_name (state));
	return TRUE;

 error:
	GST_DEBUG ("error while waiting for state change to %s", gst_element_state_get_name (state));
	/* already set *error */
	return FALSE;
}
示例#18
0
void eServiceMP3::gstBusCall(GstMessage *msg)
{
	if (!msg)
		return;
	gchar *sourceName;
	GstObject *source;
	source = GST_MESSAGE_SRC(msg);
	if (!GST_IS_OBJECT(source))
		return;
	sourceName = gst_object_get_name(source);
#if 0
	gchar *string;
	if (gst_message_get_structure(msg))
		string = gst_structure_to_string(gst_message_get_structure(msg));
	else
		string = g_strdup(GST_MESSAGE_TYPE_NAME(msg));
	eDebug("eTsRemoteSource::gst_message from %s: %s", sourceName, string);
	g_free(string);
#endif
	switch (GST_MESSAGE_TYPE (msg))
	{
		case GST_MESSAGE_EOS:
			m_event((iPlayableService*)this, evEOF);
			break;
		case GST_MESSAGE_STATE_CHANGED:
		{
			if(GST_MESSAGE_SRC(msg) != GST_OBJECT(m_gst_playbin))
				break;

			GstState old_state, new_state;
			gst_message_parse_state_changed(msg, &old_state, &new_state, NULL);
		
			if(old_state == new_state)
				break;
	
			eDebug("eServiceMP3::state transition %s -> %s", gst_element_state_get_name(old_state), gst_element_state_get_name(new_state));
	
			GstStateChange transition = (GstStateChange)GST_STATE_TRANSITION(old_state, new_state);
	
			switch(transition)
			{
				case GST_STATE_CHANGE_NULL_TO_READY:
				{
				}	break;
				case GST_STATE_CHANGE_READY_TO_PAUSED:
				{
					GstElement *subsink = gst_bin_get_by_name(GST_BIN(m_gst_playbin), "subtitle_sink");
					if (subsink)
					{
#ifdef GSTREAMER_SUBTITLE_SYNC_MODE_BUG
						/* 
						 * HACK: disable sync mode for now, gstreamer suffers from a bug causing sparse streams to loose sync, after pause/resume / skip
						 * see: https://bugzilla.gnome.org/show_bug.cgi?id=619434
						 * Sideeffect of using sync=false is that we receive subtitle buffers (far) ahead of their
						 * display time.
						 * Not too far ahead for subtitles contained in the media container.
						 * But for external srt files, we could receive all subtitles at once.
						 * And not just once, but after each pause/resume / skip.
						 * So as soon as gstreamer has been fixed to keep sync in sparse streams, sync needs to be re-enabled.
						 */
						g_object_set (G_OBJECT (subsink), "sync", FALSE, NULL);
#endif
#if 0
						/* we should not use ts-offset to sync with the decoder time, we have to do our own decoder timekeeping */
						g_object_set (G_OBJECT (subsink), "ts-offset", -2L * GST_SECOND, NULL);
						/* late buffers probably will not occur very often */
						g_object_set (G_OBJECT (subsink), "max-lateness", 0L, NULL);
						/* avoid prerolling (it might not be a good idea to preroll a sparse stream) */
						g_object_set (G_OBJECT (subsink), "async", TRUE, NULL);
#endif
						eDebug("eServiceMP3::subsink properties set!");
						gst_object_unref(subsink);
					}
					setAC3Delay(ac3_delay);
					setPCMDelay(pcm_delay);
				}	break;
				case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
				{
					if ( m_sourceinfo.is_streaming && m_streamingsrc_timeout )
						m_streamingsrc_timeout->stop();
				}	break;
				case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
				{
				}	break;
				case GST_STATE_CHANGE_PAUSED_TO_READY:
				{
				}	break;
				case GST_STATE_CHANGE_READY_TO_NULL:
				{
				}	break;
			}
			break;
		}
		case GST_MESSAGE_ERROR:
		{
			gchar *debug;
			GError *err;
			gst_message_parse_error (msg, &err, &debug);
			g_free (debug);
			eWarning("Gstreamer error: %s (%i) from %s", err->message, err->code, sourceName );
			if ( err->domain == GST_STREAM_ERROR )
			{
				if ( err->code == GST_STREAM_ERROR_CODEC_NOT_FOUND )
				{
					if ( g_strrstr(sourceName, "videosink") )
						m_event((iPlayableService*)this, evUser+11);
					else if ( g_strrstr(sourceName, "audiosink") )
						m_event((iPlayableService*)this, evUser+10);
				}
			}
			g_error_free(err);
			break;
		}
		case GST_MESSAGE_INFO:
		{
			gchar *debug;
			GError *inf;
	
			gst_message_parse_info (msg, &inf, &debug);
			g_free (debug);
			if ( inf->domain == GST_STREAM_ERROR && inf->code == GST_STREAM_ERROR_DECODE )
			{
				if ( g_strrstr(sourceName, "videosink") )
					m_event((iPlayableService*)this, evUser+14);
			}
			g_error_free(inf);
			break;
		}
		case GST_MESSAGE_TAG:
		{
			GstTagList *tags, *result;
			gst_message_parse_tag(msg, &tags);
	
			result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_REPLACE);
			if (result)
			{
				if (m_stream_tags)
					gst_tag_list_free(m_stream_tags);
				m_stream_tags = result;
			}
	
			const GValue *gv_image = gst_tag_list_get_value_index(tags, GST_TAG_IMAGE, 0);
			if ( gv_image )
			{
				GstBuffer *buf_image;
				buf_image = gst_value_get_buffer (gv_image);
				int fd = open("/tmp/.id3coverart", O_CREAT|O_WRONLY|O_TRUNC, 0644);
				int ret = write(fd, GST_BUFFER_DATA(buf_image), GST_BUFFER_SIZE(buf_image));
				close(fd);
				eDebug("eServiceMP3::/tmp/.id3coverart %d bytes written ", ret);
				m_event((iPlayableService*)this, evUser+13);
			}
			gst_tag_list_free(tags);
			m_event((iPlayableService*)this, evUpdatedInfo);
			break;
		}
		case GST_MESSAGE_ASYNC_DONE:
		{
			if(GST_MESSAGE_SRC(msg) != GST_OBJECT(m_gst_playbin))
				break;

			GstTagList *tags;
			gint i, active_idx, n_video = 0, n_audio = 0, n_text = 0;

			g_object_get (m_gst_playbin, "n-video", &n_video, NULL);
			g_object_get (m_gst_playbin, "n-audio", &n_audio, NULL);
			g_object_get (m_gst_playbin, "n-text", &n_text, NULL);

			eDebug("eServiceMP3::async-done - %d video, %d audio, %d subtitle", n_video, n_audio, n_text);

			if ( n_video + n_audio <= 0 )
				stop();

			active_idx = 0;

			m_audioStreams.clear();
			m_subtitleStreams.clear();

			for (i = 0; i < n_audio; i++)
			{
				audioStream audio;
				gchar *g_codec, *g_lang;
				GstPad* pad = 0;
				g_signal_emit_by_name (m_gst_playbin, "get-audio-pad", i, &pad);
				GstCaps* caps = gst_pad_get_negotiated_caps(pad);
				if (!caps)
					continue;
				GstStructure* str = gst_caps_get_structure(caps, 0);
				const gchar *g_type = gst_structure_get_name(str);
				eDebug("AUDIO STRUCT=%s", g_type);
				audio.type = gstCheckAudioPad(str);
				g_codec = g_strdup(g_type);
				g_lang = g_strdup_printf ("und");
				g_signal_emit_by_name (m_gst_playbin, "get-audio-tags", i, &tags);
				if ( tags && gst_is_tag_list(tags) )
				{
					gst_tag_list_get_string(tags, GST_TAG_AUDIO_CODEC, &g_codec);
					gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_lang);
					gst_tag_list_free(tags);
				}
				audio.language_code = std::string(g_lang);
				audio.codec = std::string(g_codec);
				eDebug("eServiceMP3::audio stream=%i codec=%s language=%s", i, g_codec, g_lang);
				m_audioStreams.push_back(audio);
				g_free (g_lang);
				g_free (g_codec);
				gst_caps_unref(caps);
			}

			for (i = 0; i < n_text; i++)
			{	
				gchar *g_codec = NULL, *g_lang = NULL;
				g_signal_emit_by_name (m_gst_playbin, "get-text-tags", i, &tags);
				subtitleStream subs;

				g_lang = g_strdup_printf ("und");
				if ( tags && gst_is_tag_list(tags) )
				{
					gst_tag_list_get_string(tags, GST_TAG_LANGUAGE_CODE, &g_lang);
					gst_tag_list_get_string(tags, GST_TAG_SUBTITLE_CODEC, &g_codec);
					gst_tag_list_free(tags);
				}

				subs.language_code = std::string(g_lang);
				eDebug("eServiceMP3::subtitle stream=%i language=%s codec=%s", i, g_lang, g_codec);
				
				GstPad* pad = 0;
				g_signal_emit_by_name (m_gst_playbin, "get-text-pad", i, &pad);
				if ( pad )
					g_signal_connect (G_OBJECT (pad), "notify::caps", G_CALLBACK (gstTextpadHasCAPS), this);
				subs.type = getSubtitleType(pad, g_codec);

				m_subtitleStreams.push_back(subs);
				g_free (g_lang);
			}
			m_event((iPlayableService*)this, evUpdatedInfo);

			if ( m_errorInfo.missing_codec != "" )
			{
				if ( m_errorInfo.missing_codec.find("video/") == 0 || ( m_errorInfo.missing_codec.find("audio/") == 0 && getNumberOfTracks() == 0 ) )
					m_event((iPlayableService*)this, evUser+12);
			}
			break;
		}
		case GST_MESSAGE_ELEMENT:
		{
			if (const GstStructure *msgstruct = gst_message_get_structure(msg))
			{
				if ( gst_is_missing_plugin_message(msg) )
				{
					GstCaps *caps;
					gst_structure_get (msgstruct, "detail", GST_TYPE_CAPS, &caps, NULL); 
					std::string codec = (const char*) gst_caps_to_string(caps);
					gchar *description = gst_missing_plugin_message_get_description(msg);
					if ( description )
					{
						eDebug("eServiceMP3::m_errorInfo.missing_codec = %s", codec.c_str());
						m_errorInfo.error_message = "GStreamer plugin " + (std::string)description + " not available!\n";
						m_errorInfo.missing_codec = codec.substr(0,(codec.find_first_of(',')));
						g_free(description);
					}
					gst_caps_unref(caps);
				}
				else
				{
					const gchar *eventname = gst_structure_get_name(msgstruct);
					if ( eventname )
					{
						if (!strcmp(eventname, "eventSizeChanged") || !strcmp(eventname, "eventSizeAvail"))
						{
							gst_structure_get_int (msgstruct, "aspect_ratio", &m_aspect);
							gst_structure_get_int (msgstruct, "width", &m_width);
							gst_structure_get_int (msgstruct, "height", &m_height);
							if (strstr(eventname, "Changed"))
								m_event((iPlayableService*)this, evVideoSizeChanged);
						}
						else if (!strcmp(eventname, "eventFrameRateChanged") || !strcmp(eventname, "eventFrameRateAvail"))
						{
							gst_structure_get_int (msgstruct, "frame_rate", &m_framerate);
							if (strstr(eventname, "Changed"))
								m_event((iPlayableService*)this, evVideoFramerateChanged);
						}
						else if (!strcmp(eventname, "eventProgressiveChanged") || !strcmp(eventname, "eventProgressiveAvail"))
						{
							gst_structure_get_int (msgstruct, "progressive", &m_progressive);
							if (strstr(eventname, "Changed"))
								m_event((iPlayableService*)this, evVideoProgressiveChanged);
						}
					}
				}
			}
			break;
		}
		case GST_MESSAGE_BUFFERING:
		{
			GstBufferingMode mode;
			gst_message_parse_buffering(msg, &(m_bufferInfo.bufferPercent));
			gst_message_parse_buffering_stats(msg, &mode, &(m_bufferInfo.avgInRate), &(m_bufferInfo.avgOutRate), &(m_bufferInfo.bufferingLeft));
			m_event((iPlayableService*)this, evBuffering);
			break;
		}
		case GST_MESSAGE_STREAM_STATUS:
		{
			GstStreamStatusType type;
			GstElement *owner;
			gst_message_parse_stream_status (msg, &type, &owner);
			if ( type == GST_STREAM_STATUS_TYPE_CREATE && m_sourceinfo.is_streaming )
			{
				if ( GST_IS_PAD(source) )
					owner = gst_pad_get_parent_element(GST_PAD(source));
				else if ( GST_IS_ELEMENT(source) )
					owner = GST_ELEMENT(source);
				else
					owner = 0;
				if ( owner )
				{
					GstElementFactory *factory = gst_element_get_factory(GST_ELEMENT(owner));
					const gchar *name = gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(factory));
					if (!strcmp(name, "souphttpsrc"))
					{
						m_streamingsrc_timeout->start(HTTP_TIMEOUT*1000, true);
						g_object_set (G_OBJECT (owner), "timeout", HTTP_TIMEOUT, NULL);
						eDebug("eServiceMP3::GST_STREAM_STATUS_TYPE_CREATE -> setting timeout on %s to %is", name, HTTP_TIMEOUT);
					}
					
				}
				if ( GST_IS_PAD(source) )
					gst_object_unref(owner);
			}
			break;
		}
		default:
			break;
	}
	g_free (sourceName);
}
示例#19
0
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;
    }
示例#20
0
static gboolean
gst_selector_pad_event (GstPad * pad, GstEvent * event)
{
  gboolean res = TRUE;
  gboolean forward = TRUE;
  GstInputSelector *sel;
  GstSelectorPad *selpad;
  GstPad *prev_active_sinkpad;
  GstPad *active_sinkpad;

  sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
  selpad = GST_SELECTOR_PAD_CAST (pad);

  GST_INPUT_SELECTOR_LOCK (sel);
  prev_active_sinkpad = sel->active_sinkpad;
  active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);

  /* only forward if we are dealing with the active sinkpad or if select_all
   * is enabled */
  if (pad != active_sinkpad && !sel->select_all)
    forward = FALSE;
  GST_INPUT_SELECTOR_UNLOCK (sel);

  if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
    g_object_notify (G_OBJECT (sel), "active-pad");

  switch (GST_EVENT_TYPE (event)) {
    case GST_EVENT_FLUSH_START:
      /* FIXME, flush out the waiter */
      break;
    case GST_EVENT_FLUSH_STOP:
      GST_INPUT_SELECTOR_LOCK (sel);
      gst_selector_pad_reset (selpad);
      sel->pending_close = FALSE;
      GST_INPUT_SELECTOR_UNLOCK (sel);
      break;
    case GST_EVENT_NEWSEGMENT:
    {
      gboolean update;
      GstFormat format;
      gdouble rate, arate;
      gint64 start, stop, time;

      gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
          &start, &stop, &time);

      GST_DEBUG_OBJECT (pad,
          "configured NEWSEGMENT update %d, rate %lf, applied rate %lf, "
          "format %d, "
          "%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
          G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);

      GST_INPUT_SELECTOR_LOCK (sel);
      GST_OBJECT_LOCK (selpad);
      gst_segment_set_newsegment_full (&selpad->segment, update,
          rate, arate, format, start, stop, time);
      GST_OBJECT_UNLOCK (selpad);

      /* If we aren't forwarding the event (because the pad is not the
       * active_sinkpad, and select_all is not set, then set the flag on the
       * that says a segment needs sending if/when that pad is activated.
       * For all other cases, we send the event immediately, which makes
       * sparse streams and other segment updates work correctly downstream.
       */
      if (!forward)
        selpad->segment_pending = TRUE;

      GST_INPUT_SELECTOR_UNLOCK (sel);
      break;
    }
    case GST_EVENT_TAG:
    {
      GstTagList *tags, *oldtags, *newtags;

      gst_event_parse_tag (event, &tags);

      GST_OBJECT_LOCK (selpad);
      oldtags = selpad->tags;

      newtags = gst_tag_list_merge (oldtags, tags, GST_TAG_MERGE_REPLACE);
      selpad->tags = newtags;
      if (oldtags)
        gst_tag_list_free (oldtags);
      GST_DEBUG_OBJECT (pad, "received tags %" GST_PTR_FORMAT, newtags);
      GST_OBJECT_UNLOCK (selpad);

      g_object_notify (G_OBJECT (selpad), "tags");
      break;
    }
    case GST_EVENT_EOS:
      selpad->eos = TRUE;
      GST_DEBUG_OBJECT (pad, "received EOS");
      /* don't forward eos in select_all mode until all sink pads have eos */
      if (sel->select_all && !gst_input_selector_check_eos (GST_ELEMENT (sel))) {
        forward = FALSE;
      }
      break;
    default:
      break;
  }
  if (forward) {
    GST_DEBUG_OBJECT (pad, "forwarding event");
    res = gst_pad_push_event (sel->srcpad, event);
  } else
    gst_event_unref (event);

  gst_object_unref (sel);

  return res;
}
GstBusSyncReply Gst_bus_call(GstBus * bus, GstMessage *msg, gpointer user_data)
{
	gchar * sourceName;
	
	// source
	GstObject * source;
	source = GST_MESSAGE_SRC(msg);
	
	if (!GST_IS_OBJECT(source))
		return GST_BUS_DROP;
	
	sourceName = gst_object_get_name(source);

	switch (GST_MESSAGE_TYPE(msg)) 
	{
		case GST_MESSAGE_EOS: 
		{
			g_message("End-of-stream");
			end_eof = 1;
			break;
		}
		
		case GST_MESSAGE_ERROR: 
		{
			gchar * debug;
			GError *err;
			gst_message_parse_error(msg, &err, &debug);
			g_free (debug);
			lt_info_c( "%s:%s - GST_MESSAGE_ERROR: %s (%i) from %s\n", FILENAME, __FUNCTION__, err->message, err->code, sourceName );
			if ( err->domain == GST_STREAM_ERROR )
			{
				if ( err->code == GST_STREAM_ERROR_CODEC_NOT_FOUND )
				{
					if ( g_strrstr(sourceName, "videosink") )
						lt_info_c( "%s:%s - GST_MESSAGE_ERROR: videosink\n", FILENAME, __FUNCTION__ ); //FIXME: how shall playback handle this event???
					else if ( g_strrstr(sourceName, "audiosink") )
						lt_info_c( "%s:%s - GST_MESSAGE_ERROR: audioSink\n", FILENAME, __FUNCTION__ ); //FIXME: how shall playback handle this event???
				}
			}
			g_error_free(err);

			end_eof = 1; 		// NOTE: just to exit
			
			break;
		}
		
		case GST_MESSAGE_INFO:
		{
			gchar *debug;
			GError *inf;
	
			gst_message_parse_info (msg, &inf, &debug);
			g_free (debug);
			if ( inf->domain == GST_STREAM_ERROR && inf->code == GST_STREAM_ERROR_DECODE )
			{
				if ( g_strrstr(sourceName, "videosink") )
					lt_info_c( "%s:%s - GST_MESSAGE_INFO: videosink\n", FILENAME, __FUNCTION__ ); //FIXME: how shall playback handle this event???
			}
			g_error_free(inf);
			break;
		}
		
		case GST_MESSAGE_TAG:
		{
			GstTagList *tags, *result;
			gst_message_parse_tag(msg, &tags);
	
			result = gst_tag_list_merge(m_stream_tags, tags, GST_TAG_MERGE_REPLACE);
			if (result)
			{
				if (m_stream_tags)
					gst_tag_list_free(m_stream_tags);
				m_stream_tags = result;
			}
	
			const GValue *gv_image = gst_tag_list_get_value_index(tags, GST_TAG_IMAGE, 0);
			if ( gv_image )
			{
				GstBuffer *buf_image;
				buf_image = gst_value_get_buffer (gv_image);
				int fd = open("/tmp/.id3coverart", O_CREAT|O_WRONLY|O_TRUNC, 0644);
				if(fd >= 0)
				{
					int ret = write(fd, GST_BUFFER_DATA(buf_image), GST_BUFFER_SIZE(buf_image));
					close(fd);
					lt_info_c( "%s:%s - GST_MESSAGE_INFO: cPlayback::state /tmp/.id3coverart %d bytes written\n", FILENAME, __FUNCTION__ , ret);
				}
				//FIXME: how shall playback handle this event???
			}
			gst_tag_list_free(tags);
			lt_info_c( "%s:%s - GST_MESSAGE_INFO: update info tags\n", FILENAME, __FUNCTION__);  //FIXME: how shall playback handle this event???
			break;
		}
		
		case GST_MESSAGE_STATE_CHANGED:
		{
			if(GST_MESSAGE_SRC(msg) != GST_OBJECT(m_gst_playbin))
				break;

			GstState old_state, new_state;
			gst_message_parse_state_changed(msg, &old_state, &new_state, NULL);
			
			if(old_state == new_state)
				break;
			lt_info_c( "%s:%s - GST_MESSAGE_STATE_CHANGED: state transition %s -> %s\n", FILENAME, __FUNCTION__, gst_element_state_get_name(old_state), gst_element_state_get_name(new_state));
		
			GstStateChange transition = (GstStateChange)GST_STATE_TRANSITION(old_state, new_state);
		
			switch(transition)
			{
				case GST_STATE_CHANGE_NULL_TO_READY:
				{
				}	break;
				case GST_STATE_CHANGE_READY_TO_PAUSED:
				{
					GstIterator *children;
					if (audioSink)
					{
						gst_object_unref(GST_OBJECT(audioSink));
						audioSink = NULL;
					}
					
					if (videoSink)
					{
						gst_object_unref(GST_OBJECT(videoSink));
						videoSink = NULL;
					}
					children = gst_bin_iterate_recurse(GST_BIN(m_gst_playbin));
					audioSink = GST_ELEMENT_CAST(gst_iterator_find_custom(children, (GCompareFunc)match_sinktype, (gpointer)"GstDVBAudioSink"));
					videoSink = GST_ELEMENT_CAST(gst_iterator_find_custom(children, (GCompareFunc)match_sinktype, (gpointer)"GstDVBVideoSink"));
					gst_iterator_free(children);
					
				}	break;
				case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
				{
				}	break;
				case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
				{
				}	break;
				case GST_STATE_CHANGE_PAUSED_TO_READY:
				{
					if (audioSink)
					{
						gst_object_unref(GST_OBJECT(audioSink));
						audioSink = NULL;
					}
					if (videoSink)
					{
						gst_object_unref(GST_OBJECT(videoSink));
						videoSink = NULL;
					}
				}	break;
				case GST_STATE_CHANGE_READY_TO_NULL:
				{
				}	break;
			}
			break;
		}
#if 0
		case GST_MESSAGE_ELEMENT:
		{
			if(gst_structure_has_name(gst_message_get_structure(msg), "prepare-xwindow-id")) 
			{
				// set window id
				gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(GST_MESSAGE_SRC (msg)), glfb->getWindowID());
				
				// reshape window
				gst_x_overlay_set_render_rectangle(GST_X_OVERLAY(GST_MESSAGE_SRC (msg)), 0, 0, glfb->getOSDWidth(), glfb->getOSDHeight());
				
				// sync frames
				gst_x_overlay_expose(GST_X_OVERLAY(GST_MESSAGE_SRC (msg)));
			}
		}
#endif
		break;
		default:
			break;
	}

	return GST_BUS_DROP;
}
/* If a parent is non-NULL, collected stream information will be appended to it
 * (and where the information exists, it will be overriden)
 */
static GstDiscovererStreamInfo *
parse_stream_topology (GstDiscoverer * dc, const GstStructure * topology,
    GstDiscovererStreamInfo * parent)
{
  GstDiscovererStreamInfo *res = NULL;
  GstCaps *caps = NULL;
  const GValue *nval = NULL;

  GST_DEBUG ("parsing: %" GST_PTR_FORMAT, topology);

  nval = gst_structure_get_value (topology, "next");

  if (nval == NULL || GST_VALUE_HOLDS_STRUCTURE (nval)) {
    GstStructure *st = find_stream_for_node (dc, topology);
    gboolean add_to_list = TRUE;

    if (st) {
      res = collect_information (dc, st, parent);
      gst_structure_free (st);
    } else {
      /* Didn't find a stream structure, so let's just use the caps we have */
      res = collect_information (dc, topology, parent);
    }

    if (nval == NULL) {
      /* FIXME : aggregate with information from main streams */
      GST_DEBUG ("Coudn't find 'next' ! might be the last entry");
    } else {
      GstCaps *caps;
      const GstStructure *st;

      st = gst_value_get_structure (nval);

      GST_DEBUG ("next is a structure %" GST_PTR_FORMAT, st);

      if (!parent)
        parent = res;

      if (gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL)) {
        if (gst_caps_can_intersect (parent->caps, caps)) {
          /* We sometimes get an extra sub-stream from the parser. If this is
           * the case, we just replace the parent caps with this stream's caps
           * since they might contain more information */
          gst_caps_unref (parent->caps);
          parent->caps = caps;

          parse_stream_topology (dc, st, parent);
          add_to_list = FALSE;

        } else if (child_is_raw_stream (parent->caps, caps)) {
          /* This is the "raw" stream corresponding to the parent. This
           * contains more information than the parent, tags etc. */
          parse_stream_topology (dc, st, parent);
          add_to_list = FALSE;
          gst_caps_unref (caps);

        } else {
          GstDiscovererStreamInfo *next = parse_stream_topology (dc, st, NULL);
          res->next = next;
          next->previous = res;
        }
      }
    }

    if (add_to_list) {
      dc->priv->current_info->stream_list =
          g_list_append (dc->priv->current_info->stream_list, res);
    }

  } else if (GST_VALUE_HOLDS_LIST (nval)) {
    guint i, len;
    GstDiscovererContainerInfo *cont;
    GstTagList *tags;

    if (!gst_structure_id_get (topology, _CAPS_QUARK,
            GST_TYPE_CAPS, &caps, NULL))
      GST_WARNING ("Couldn't find caps !");

    len = gst_value_list_get_size (nval);
    GST_DEBUG ("next is a list of %d entries", len);

    cont = (GstDiscovererContainerInfo *)
        gst_mini_object_new (GST_TYPE_DISCOVERER_CONTAINER_INFO);
    cont->parent.caps = caps;
    res = (GstDiscovererStreamInfo *) cont;

    if (gst_structure_id_has_field (topology, _TAGS_QUARK)) {
      GstTagList *tmp;

      gst_structure_id_get (topology, _TAGS_QUARK,
          GST_TYPE_STRUCTURE, &tags, NULL);

      GST_DEBUG ("Merge tags %" GST_PTR_FORMAT, tags);

      tmp =
          gst_tag_list_merge (cont->parent.tags, (GstTagList *) tags,
          GST_TAG_MERGE_APPEND);
      gst_tag_list_free (tags);
      if (cont->parent.tags)
        gst_tag_list_free (cont->parent.tags);
      cont->parent.tags = tmp;
      GST_DEBUG ("Container info tags %" GST_PTR_FORMAT, tmp);
    }

    for (i = 0; i < len; i++) {
      const GValue *subv = gst_value_list_get_value (nval, i);
      const GstStructure *subst = gst_value_get_structure (subv);
      GstDiscovererStreamInfo *substream;

      GST_DEBUG ("%d %" GST_PTR_FORMAT, i, subst);

      substream = parse_stream_topology (dc, subst, NULL);

      substream->previous = res;
      cont->streams =
          g_list_append (cont->streams,
          gst_discoverer_stream_info_ref (substream));
    }
  }

  return res;
}
/* Parses a set of caps and tags in st and populates a GstDiscovererStreamInfo
 * structure (parent, if !NULL, otherwise it allocates one)
 */
static GstDiscovererStreamInfo *
collect_information (GstDiscoverer * dc, const GstStructure * st,
    GstDiscovererStreamInfo * parent)
{
  GstCaps *caps;
  GstStructure *caps_st, *tags_st;
  const gchar *name;
  int tmp, tmp2;
  guint utmp;
  gboolean btmp;

  if (!st || !gst_structure_id_has_field (st, _CAPS_QUARK)) {
    GST_WARNING ("Couldn't find caps !");
    if (parent)
      return parent;
    else
      return (GstDiscovererStreamInfo *)
          gst_mini_object_new (GST_TYPE_DISCOVERER_STREAM_INFO);
  }

  gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
  caps_st = gst_caps_get_structure (caps, 0);
  name = gst_structure_get_name (caps_st);

  if (g_str_has_prefix (name, "audio/")) {
    GstDiscovererAudioInfo *info;

    if (parent)
      info = (GstDiscovererAudioInfo *) parent;
    else {
      info = (GstDiscovererAudioInfo *)
          gst_mini_object_new (GST_TYPE_DISCOVERER_AUDIO_INFO);
      info->parent.caps = caps;
    }

    if (gst_structure_get_int (caps_st, "rate", &tmp))
      info->sample_rate = (guint) tmp;

    if (gst_structure_get_int (caps_st, "channels", &tmp))
      info->channels = (guint) tmp;

    if (gst_structure_get_int (caps_st, "depth", &tmp))
      info->depth = (guint) tmp;

    if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
      gst_structure_id_get (st, _TAGS_QUARK,
          GST_TYPE_STRUCTURE, &tags_st, NULL);
      if (gst_structure_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
          gst_structure_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
        info->bitrate = utmp;

      if (gst_structure_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
        info->max_bitrate = utmp;

      /* FIXME: Is it worth it to remove the tags we've parsed? */
      info->parent.tags = gst_tag_list_merge (info->parent.tags,
          (GstTagList *) tags_st, GST_TAG_MERGE_REPLACE);

      gst_structure_free (tags_st);
    }

    return (GstDiscovererStreamInfo *) info;

  } else if (g_str_has_prefix (name, "video/") ||
      g_str_has_prefix (name, "image/")) {
    GstDiscovererVideoInfo *info;
    GstVideoFormat format;

    if (parent)
      info = (GstDiscovererVideoInfo *) parent;
    else {
      info = (GstDiscovererVideoInfo *)
          gst_mini_object_new (GST_TYPE_DISCOVERER_VIDEO_INFO);
      info->parent.caps = caps;
    }

    if (gst_video_format_parse_caps (caps, &format, &tmp, &tmp2)) {
      info->width = (guint) tmp;
      info->height = (guint) tmp2;
    }

    if (gst_structure_get_int (caps_st, "depth", &tmp))
      info->depth = (guint) tmp;

    if (gst_video_parse_caps_pixel_aspect_ratio (caps, &tmp, &tmp2)) {
      info->par_num = tmp;
      info->par_denom = tmp2;
    }

    if (gst_video_parse_caps_framerate (caps, &tmp, &tmp2)) {
      info->framerate_num = tmp;
      info->framerate_denom = tmp2;
    }

    if (gst_video_format_parse_caps_interlaced (caps, &btmp))
      info->interlaced = btmp;

    if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
      gst_structure_id_get (st, _TAGS_QUARK,
          GST_TYPE_STRUCTURE, &tags_st, NULL);
      if (gst_structure_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
          gst_structure_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
        info->bitrate = utmp;

      if (gst_structure_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
        info->max_bitrate = utmp;

      /* FIXME: Is it worth it to remove the tags we've parsed? */
      info->parent.tags = gst_tag_list_merge (info->parent.tags,
          (GstTagList *) tags_st, GST_TAG_MERGE_REPLACE);
      gst_structure_free (tags_st);
    }

    return (GstDiscovererStreamInfo *) info;

  } else {
    /* None of the above - populate what information we can */
    GstDiscovererStreamInfo *info;

    if (parent)
      info = parent;
    else {
      info = (GstDiscovererStreamInfo *)
          gst_mini_object_new (GST_TYPE_DISCOVERER_STREAM_INFO);
      info->caps = caps;
    }

    if (gst_structure_id_get (st, _TAGS_QUARK,
            GST_TYPE_STRUCTURE, &tags_st, NULL)) {
      info->tags = gst_tag_list_merge (info->tags, (GstTagList *) tags_st,
          GST_TAG_MERGE_REPLACE);
      gst_structure_free (tags_st);
    }

    return info;
  }

}
static GstBuffer *
gst_tag_lib_mux_render_tag (GstTagLibMux * mux)
{
  GstTagLibMuxClass *klass;
  GstTagMergeMode merge_mode;
  GstTagSetter *tagsetter;
  GstBuffer *buffer;
  const GstTagList *tagsetter_tags;
  GstTagList *taglist;
  GstEvent *event;

  tagsetter = GST_TAG_SETTER (mux);

  tagsetter_tags = gst_tag_setter_get_tag_list (tagsetter);
  merge_mode = gst_tag_setter_get_tag_merge_mode (tagsetter);

  GST_LOG_OBJECT (mux, "merging tags, merge mode = %d", merge_mode);
  GST_LOG_OBJECT (mux, "event tags: %" GST_PTR_FORMAT, mux->event_tags);
  GST_LOG_OBJECT (mux, "set   tags: %" GST_PTR_FORMAT, tagsetter_tags);

  taglist = gst_tag_list_merge (tagsetter_tags, mux->event_tags, merge_mode);

  GST_LOG_OBJECT (mux, "final tags: %" GST_PTR_FORMAT, taglist);

  klass = GST_TAG_LIB_MUX_CLASS (G_OBJECT_GET_CLASS (mux));

  if (klass->render_tag == NULL)
    goto no_vfunc;

  buffer = klass->render_tag (mux, taglist);

  if (buffer == NULL)
    goto render_error;

  mux->tag_size = GST_BUFFER_SIZE (buffer);
  GST_LOG_OBJECT (mux, "tag size = %" G_GSIZE_FORMAT " bytes", mux->tag_size);

  /* Send newsegment event from byte position 0, so the tag really gets
   * written to the start of the file, independent of the upstream segment */
  gst_pad_push_event (mux->srcpad,
      gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0));

  /* Send an event about the new tags to downstream elements */
  /* gst_event_new_tag takes ownership of the list, so no need to unref it */
  event = gst_event_new_tag (taglist);
  gst_pad_push_event (mux->srcpad, event);

  GST_BUFFER_OFFSET (buffer) = 0;

  return buffer;

no_vfunc:
  {
    GST_ERROR_OBJECT (mux, "Subclass does not implement render_tag vfunc!");
    gst_tag_list_free (taglist);
    return NULL;
  }

render_error:
  {
    GST_ERROR_OBJECT (mux, "Failed to render tag");
    gst_tag_list_free (taglist);
    return NULL;
  }
}
示例#25
0
GstFlowReturn
gst_kate_util_decoder_base_chain_kate_packet (GstKateDecoderBase * decoder,
    GstElement * element, GstPad * pad, GstBuffer * buf, GstPad * srcpad,
    const kate_event ** ev)
{
  kate_packet kp;
  int ret;
  GstFlowReturn rflow = GST_FLOW_OK;

  GST_DEBUG_OBJECT (element, "got kate packet, %u bytes, type %02x",
      GST_BUFFER_SIZE (buf),
      GST_BUFFER_SIZE (buf) == 0 ? -1 : GST_BUFFER_DATA (buf)[0]);
  kate_packet_wrap (&kp, GST_BUFFER_SIZE (buf), GST_BUFFER_DATA (buf));
  ret = kate_high_decode_packetin (&decoder->k, &kp, ev);
  if (G_UNLIKELY (ret < 0)) {
    GST_ELEMENT_ERROR (element, STREAM, DECODE, (NULL),
        ("Failed to decode Kate packet: %d", ret));
    return GST_FLOW_ERROR;
  } else if (G_UNLIKELY (ret > 0)) {
    GST_DEBUG_OBJECT (element,
        "kate_high_decode_packetin has received EOS packet");
    return GST_FLOW_OK;
  }

  /* headers may be interesting to retrieve information from */
  if (G_LIKELY (GST_BUFFER_SIZE (buf) > 0))
    switch (GST_BUFFER_DATA (buf)[0]) {
        GstCaps *caps;

      case 0x80:               /* ID header */
        GST_INFO_OBJECT (element, "Parsed ID header: language %s, category %s",
            decoder->k.ki->language, decoder->k.ki->category);
        caps = gst_caps_new_simple ("text/x-pango-markup", NULL);
        gst_pad_set_caps (srcpad, caps);
        gst_caps_unref (caps);
        if (decoder->k.ki->language && *decoder->k.ki->language) {
          GstTagList *old = decoder->tags, *tags = gst_tag_list_new ();
          if (tags) {
            gchar *lang_code;

            /* en_GB -> en */
            lang_code = g_ascii_strdown (decoder->k.ki->language, -1);
            g_strdelimit (lang_code, NULL, '\0');
            gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_LANGUAGE_CODE,
                lang_code, NULL);
            g_free (lang_code);
            /* TODO: category - where should it go ? */
            decoder->tags =
                gst_tag_list_merge (decoder->tags, tags, GST_TAG_MERGE_REPLACE);
            gst_tag_list_free (tags);
            if (old)
              gst_tag_list_free (old);
          }
        }

        /* update properties */
        if (decoder->language)
          g_free (decoder->language);
        decoder->language = g_strdup (decoder->k.ki->language);
        if (decoder->category)
          g_free (decoder->category);
        decoder->category = g_strdup (decoder->k.ki->category);
        decoder->original_canvas_width = decoder->k.ki->original_canvas_width;
        decoder->original_canvas_height = decoder->k.ki->original_canvas_height;

        break;

      case 0x81:               /* Vorbis comments header */
        GST_INFO_OBJECT (element, "Parsed comments header");
        {
          gchar *encoder = NULL;
          GstTagList *old = decoder->tags, *list =
              gst_tag_list_from_vorbiscomment_buffer (buf,
              (const guint8 *) "\201kate\0\0\0\0", 9, &encoder);
          if (list) {
            decoder->tags =
                gst_tag_list_merge (decoder->tags, list, GST_TAG_MERGE_REPLACE);
            gst_tag_list_free (list);
          }

          if (!decoder->tags) {
            GST_ERROR_OBJECT (element, "failed to decode comment header");
            decoder->tags = gst_tag_list_new ();
          }
          if (encoder) {
            gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
                GST_TAG_ENCODER, encoder, NULL);
            g_free (encoder);
          }
          gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
              GST_TAG_SUBTITLE_CODEC, "Kate", NULL);
          gst_tag_list_add (decoder->tags, GST_TAG_MERGE_REPLACE,
              GST_TAG_ENCODER_VERSION, decoder->k.ki->bitstream_version_major,
              NULL);

          if (old)
            gst_tag_list_free (old);

          if (decoder->initialized) {
            gst_element_found_tags_for_pad (element, srcpad, decoder->tags);
            decoder->tags = NULL;
          } else {
            /* Only push them as messages for the time being. *
             * They will be pushed on the pad once the decoder is initialized */
            gst_element_post_message (element,
                gst_message_new_tag (GST_OBJECT (element),
                    gst_tag_list_copy (decoder->tags)));
          }
        }
        break;

      default:
        break;
    }

  return rflow;
}
示例#26
0
static GstFlowReturn
vorbis_handle_comment_packet (GstVorbisDec * vd, ogg_packet * packet)
{
  guint bitrate = 0;
  gchar *encoder = NULL;
  GstTagList *list, *old_list;
  GstBuffer *buf;

  GST_DEBUG_OBJECT (vd, "parsing comment packet");

  buf = gst_buffer_new ();
  GST_BUFFER_DATA (buf) = gst_ogg_packet_data (packet);
  GST_BUFFER_SIZE (buf) = gst_ogg_packet_size (packet);

  list =
      gst_tag_list_from_vorbiscomment_buffer (buf, (guint8 *) "\003vorbis", 7,
      &encoder);

  old_list = vd->taglist;
  vd->taglist = gst_tag_list_merge (vd->taglist, list, GST_TAG_MERGE_REPLACE);

  if (old_list)
    gst_tag_list_free (old_list);
  gst_tag_list_free (list);
  gst_buffer_unref (buf);

  if (!vd->taglist) {
    GST_ERROR_OBJECT (vd, "couldn't decode comments");
    vd->taglist = gst_tag_list_new ();
  }
  if (encoder) {
    if (encoder[0])
      gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
          GST_TAG_ENCODER, encoder, NULL);
    g_free (encoder);
  }
  gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
      GST_TAG_ENCODER_VERSION, vd->vi.version,
      GST_TAG_AUDIO_CODEC, "Vorbis", NULL);
  if (vd->vi.bitrate_nominal > 0 && vd->vi.bitrate_nominal <= 0x7FFFFFFF) {
    gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
        GST_TAG_NOMINAL_BITRATE, (guint) vd->vi.bitrate_nominal, NULL);
    bitrate = vd->vi.bitrate_nominal;
  }
  if (vd->vi.bitrate_upper > 0 && vd->vi.bitrate_upper <= 0x7FFFFFFF) {
    gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
        GST_TAG_MAXIMUM_BITRATE, (guint) vd->vi.bitrate_upper, NULL);
    if (!bitrate)
      bitrate = vd->vi.bitrate_upper;
  }
  if (vd->vi.bitrate_lower > 0 && vd->vi.bitrate_lower <= 0x7FFFFFFF) {
    gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
        GST_TAG_MINIMUM_BITRATE, (guint) vd->vi.bitrate_lower, NULL);
    if (!bitrate)
      bitrate = vd->vi.bitrate_lower;
  }
  if (bitrate) {
    gst_tag_list_add (vd->taglist, GST_TAG_MERGE_REPLACE,
        GST_TAG_BITRATE, (guint) bitrate, NULL);
  }

  if (vd->initialized) {
    gst_element_found_tags_for_pad (GST_ELEMENT_CAST (vd), vd->srcpad,
        vd->taglist);
    vd->taglist = NULL;
  } else {
    /* Only post them as messages for the time being. *
     * They will be pushed on the pad once the decoder is initialized */
    gst_element_post_message (GST_ELEMENT_CAST (vd),
        gst_message_new_tag (GST_OBJECT (vd), gst_tag_list_copy (vd->taglist)));
  }

  return GST_FLOW_OK;
}
/* Returns TRUE if processing should stop */
static gboolean
handle_message (GstDiscoverer * dc, GstMessage * msg)
{
  gboolean done = FALSE;

  GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "got a %s message",
      GST_MESSAGE_TYPE_NAME (msg));

  switch (GST_MESSAGE_TYPE (msg)) {
    case GST_MESSAGE_ERROR:{
      GError *gerr;
      gchar *debug;

      gst_message_parse_error (msg, &gerr, &debug);
      GST_WARNING_OBJECT (GST_MESSAGE_SRC (msg),
          "Got an error [debug:%s], [message:%s]", debug, gerr->message);
      dc->priv->current_error = gerr;
      g_free (debug);

      /* We need to stop */
      done = TRUE;

      GST_DEBUG ("Setting result to ERROR");
      dc->priv->current_info->result = GST_DISCOVERER_ERROR;
    }
      break;

    case GST_MESSAGE_EOS:
      GST_DEBUG ("Got EOS !");
      done = TRUE;
      break;

    case GST_MESSAGE_ASYNC_DONE:
      if (GST_MESSAGE_SRC (msg) == (GstObject *) dc->priv->pipeline) {
        GST_DEBUG ("Finished changing state asynchronously");
        done = TRUE;

      }
      break;

    case GST_MESSAGE_ELEMENT:
    {
      GQuark sttype = gst_structure_get_name_id (msg->structure);
      GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg),
          "structure %" GST_PTR_FORMAT, msg->structure);
      if (sttype == _MISSING_PLUGIN_QUARK) {
        GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg),
            "Setting result to MISSING_PLUGINS");
        dc->priv->current_info->result = GST_DISCOVERER_MISSING_PLUGINS;
        dc->priv->current_info->misc = gst_structure_copy (msg->structure);
      } else if (sttype == _STREAM_TOPOLOGY_QUARK) {
        dc->priv->current_topology = gst_structure_copy (msg->structure);
      }
    }
      break;

    case GST_MESSAGE_TAG:
    {
      GstTagList *tl, *tmp;

      gst_message_parse_tag (msg, &tl);
      GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "Got tags %" GST_PTR_FORMAT, tl);
      /* Merge with current tags */
      tmp =
          gst_tag_list_merge (dc->priv->current_info->tags, tl,
          GST_TAG_MERGE_APPEND);
      gst_tag_list_free (tl);
      if (dc->priv->current_info->tags)
        gst_tag_list_free (dc->priv->current_info->tags);
      dc->priv->current_info->tags = tmp;
      GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "Current info %p, tags %"
          GST_PTR_FORMAT, dc->priv->current_info, tmp);
    }
      break;

    default:
      break;
  }

  return done;
}