/*
 * _gst_caps_set_buffer_array:
 * @caps: (transfer full): a #GstCaps
 * @field: field in caps to set
 * @buf: header buffers
 *
 * Adds given buffers to an array of buffers set as the given @field
 * on the given @caps.  List of buffer arguments must be NULL-terminated.
 *
 * Returns: (transfer full): input caps with a streamheader field added, or NULL
 *     if some error occurred
 */
static GstCaps *
_gst_caps_set_buffer_array (GstCaps * caps, const gchar * field,
    GstBuffer * buf, ...)
{
  GstStructure *structure = NULL;
  va_list va;
  GValue array = { 0 };
  GValue value = { 0 };

  g_return_val_if_fail (caps != NULL, NULL);
  g_return_val_if_fail (gst_caps_is_fixed (caps), NULL);
  g_return_val_if_fail (field != NULL, NULL);

  caps = gst_caps_make_writable (caps);
  structure = gst_caps_get_structure (caps, 0);

  g_value_init (&array, GST_TYPE_ARRAY);

  va_start (va, buf);
  /* put buffers in a fixed list */
  while (buf) {
    g_value_init (&value, GST_TYPE_BUFFER);
    gst_value_set_buffer (&value, buf);
    gst_value_array_append_value (&array, &value);
    g_value_unset (&value);

    buf = va_arg (va, GstBuffer *);
  }
  va_end (va);

  gst_structure_take_value (structure, field, &array);

  return caps;
}
Beispiel #2
0
static GstStructure *
make_player_clients_list_msg (SnraManager * manager)
{
  GstStructure *msg;
  GValue p = { 0, };
  GList *cur;

  g_value_init (&p, GST_TYPE_ARRAY);

  msg = gst_structure_new ("json",
      "msg-type", G_TYPE_STRING, "player-clients", NULL);

  for (cur = manager->player_info; cur != NULL; cur = g_list_next (cur)) {
    SnraPlayerInfo *info = (SnraPlayerInfo *) (cur->data);
    if (info->conn != NULL) {
      GValue tmp = { 0, };
      GstStructure *cur_struct = gst_structure_new ("client",
          "client-id", G_TYPE_INT64, (gint64) info->id,
          "enabled", G_TYPE_BOOLEAN, info->enabled,
          "volume", G_TYPE_DOUBLE, info->volume,
          "host", G_TYPE_STRING, info->host,
          NULL);

      g_value_init (&tmp, GST_TYPE_STRUCTURE);
      gst_value_set_structure (&tmp, cur_struct);
      gst_value_array_append_value (&p, &tmp);
      g_value_unset (&tmp);
      gst_structure_free (cur_struct);
    }
  }
  gst_structure_take_value (msg, "player-clients", &p);

  return msg;
}
static GstCaps *
theora_set_header_on_caps (GstCaps * caps, GList * buffers)
{
  GstStructure *structure;
  GValue array = { 0 };
  GValue value = { 0 };
  GstBuffer *buffer;
  GList *walk;

  caps = gst_caps_make_writable (caps);
  structure = gst_caps_get_structure (caps, 0);

  /* put copies of the buffers in a fixed list */
  g_value_init (&array, GST_TYPE_ARRAY);

  for (walk = buffers; walk; walk = walk->next) {
    buffer = walk->data;
    g_value_init (&value, GST_TYPE_BUFFER);
    gst_value_set_buffer (&value, buffer);
    gst_value_array_append_value (&array, &value);
    g_value_unset (&value);
  }

  gst_structure_take_value (structure, "streamheader", &array);

  return caps;
}
bool fill_structure_fixed_resolution (GstStructure* structure,
                                      const tcam::VideoFormatDescription& format,
                                      const tcam_resolution_description& res)
{

    std::vector<double> framerates = format.get_frame_rates(res);
    int framerate_count = framerates.size();

    GValue fps_list = G_VALUE_INIT;
    g_value_init(&fps_list, GST_TYPE_LIST);

    for (int f = 0; f < framerate_count; f++)
    {
        int frame_rate_numerator;
        int frame_rate_denominator;
        gst_util_double_to_fraction(framerates[f],
                                    &frame_rate_numerator,
                                    &frame_rate_denominator);

        GValue fraction = G_VALUE_INIT;
        g_value_init(&fraction, GST_TYPE_FRACTION);
        gst_value_set_fraction(&fraction, frame_rate_numerator, frame_rate_denominator);
        gst_value_list_append_value(&fps_list, &fraction);
        g_value_unset(&fraction);
    }

    gst_structure_set (structure,
                       "width", G_TYPE_INT, res.max_size.width,
                       "height", G_TYPE_INT, res.max_size.height,
                       NULL);

    gst_structure_take_value(structure, "framerate", &fps_list);

    return true;
}
static void
theora_parse_set_header_on_caps (GstTheoraParse * parse, GstCaps * caps)
{
  GstBuffer **bufs;
  GstStructure *structure;
  gint i;
  GValue array = { 0 };
  GValue value = { 0 };

  bufs = parse->streamheader;
  structure = gst_caps_get_structure (caps, 0);
  g_value_init (&array, GST_TYPE_ARRAY);

  for (i = 0; i < 3; i++) {
    if (bufs[i] == NULL)
      continue;

    bufs[i] = gst_buffer_make_writable (bufs[i]);
    GST_BUFFER_FLAG_SET (bufs[i], GST_BUFFER_FLAG_HEADER);

    g_value_init (&value, GST_TYPE_BUFFER);
    gst_value_set_buffer (&value, bufs[i]);
    gst_value_array_append_value (&array, &value);
    g_value_unset (&value);
  }

  gst_structure_take_value (structure, "streamheader", &array);
}
Beispiel #6
0
static GstMessage *
gst_level_message_new (GstLevel * level, GstClockTime timestamp,
    GstClockTime duration)
{
  GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (level);
  GstStructure *s;
  GValue v = { 0, };
  GstClockTime endtime, running_time, stream_time;

  running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
      timestamp);
  stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
      timestamp);
  /* endtime is for backwards compatibility */
  endtime = stream_time + duration;

  s = gst_structure_new ("level",
      "endtime", GST_TYPE_CLOCK_TIME, endtime,
      "timestamp", G_TYPE_UINT64, timestamp,
      "stream-time", G_TYPE_UINT64, stream_time,
      "running-time", G_TYPE_UINT64, running_time,
      "duration", G_TYPE_UINT64, duration, NULL);

  g_value_init (&v, G_TYPE_VALUE_ARRAY);
  g_value_take_boxed (&v, g_value_array_new (0));
  gst_structure_take_value (s, "rms", &v);

  g_value_init (&v, G_TYPE_VALUE_ARRAY);
  g_value_take_boxed (&v, g_value_array_new (0));
  gst_structure_take_value (s, "peak", &v);

  g_value_init (&v, G_TYPE_VALUE_ARRAY);
  g_value_take_boxed (&v, g_value_array_new (0));
  gst_structure_take_value (s, "decay", &v);

  return gst_message_new_element (GST_OBJECT (level), s);
}
Beispiel #7
0
static void
gst_x265_enc_add_x265_chroma_format (GstStructure * s,
    int x265_chroma_format_local)
{
  GValue fmt = G_VALUE_INIT;

  if (x265_max_bit_depth >= 10) {
    GST_INFO ("This x265 build supports %d-bit depth", x265_max_bit_depth);
    if (x265_chroma_format_local == 0) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
      set_value (&fmt, 4, "I420", "Y444", "I420_10LE", "Y444_10LE");
#else
      set_value (&fmt, 4, "I420", "Y444", "I420_10BE", "Y444_10BE");
#endif
    } else if (x265_chroma_format_local == X265_CSP_I444) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
      set_value (&fmt, 2, "Y444", "Y444_10LE");
#else
      set_value (&fmt, 2, "Y444", "Y444_10BE");
#endif
    } else if (x265_chroma_format_local == X265_CSP_I420) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
      set_value (&fmt, 2, "I420", "I420_10LE");
#else
      set_value (&fmt, 2, "I420", "I420_10BE");
#endif
    } else {
      GST_ERROR ("Unsupported chroma format %d", x265_chroma_format_local);
    }
  } else if (x265_max_bit_depth == 8) {
    GST_INFO ("This x265 build supports 8-bit depth");
    if (x265_chroma_format_local == 0) {
      set_value (&fmt, 2, "I420", "Y444");
    } else if (x265_chroma_format_local == X265_CSP_I444) {
      set_value (&fmt, 1, "Y444");
    } else if (x265_chroma_format_local == X265_CSP_I420) {
      set_value (&fmt, 1, "I420");
    } else {
      GST_ERROR ("Unsupported chroma format %d", x265_chroma_format_local);
    }
  }

  if (G_VALUE_TYPE (&fmt) != G_TYPE_INVALID)
    gst_structure_take_value (s, "format", &fmt);
}
static void
add_wavelength_list_to_struct (GstStructure * structure,
  gint wavelengthno, gint *wavelengths)
{
  GValue array = { 0 };
  GValue value = { 0 };
  gint i;
  /* put copies of the buffers in a fixed list */
  g_value_init (&array, GST_TYPE_ARRAY);

  for (i=0; i< wavelengthno; i++) {
    g_value_init (&value, G_TYPE_INT);
    g_value_set_int (&value, wavelengths[i]);
    gst_value_array_append_value (&array, &value);
    g_value_unset (&value);
  }

  gst_structure_take_value (structure, "wavelength_ids", &array);
}
/* Clamp the framerate in a caps structure to be a smaller range then
 * [1...max_rate], otherwise return false */
static gboolean
gst_video_max_rate_clamp_structure (GstStructure * s, gint maxrate,
    gint * min_num, gint * min_denom, gint * max_num, gint * max_denom)
{
  gboolean ret = FALSE;

  if (!gst_structure_has_field (s, "framerate")) {
    /* No framerate field implies any framerate, clamping would result in
     * [1..max_rate] so not a real subset */
    goto out;
  } else {
    const GValue *v;
    GValue intersection = { 0, };
    GValue clamp = { 0, };
    gint tmp_num, tmp_denom;

    g_value_init (&clamp, GST_TYPE_FRACTION_RANGE);
    gst_value_set_fraction_range_full (&clamp, 0, 1, maxrate, 1);

    v = gst_structure_get_value (s, "framerate");
    ret = gst_value_intersect (&intersection, v, &clamp);
    g_value_unset (&clamp);

    if (!ret)
      goto out;

    gst_value_fraction_get_extremes (&intersection,
        min_num, min_denom, max_num, max_denom);

    gst_value_fraction_get_extremes (v,
        &tmp_num, &tmp_denom, max_num, max_denom);

    if (gst_util_fraction_compare (*max_num, *max_denom, maxrate, 1) > 0) {
      *max_num = maxrate;
      *max_denom = 1;
    }

    gst_structure_take_value (s, "framerate", &intersection);
  }

out:
  return ret;
}
static void
vorbis_parse_set_header_on_caps (GstVorbisParse * parse, GstCaps * caps)
{
  GstBuffer *buf1, *buf2, *buf3;
  GstStructure *structure;
  GValue array = { 0 };
  GValue value = { 0 };

  g_assert (parse);
  g_assert (parse->streamheader);
  g_assert (parse->streamheader->next);
  g_assert (parse->streamheader->next->next);
  buf1 = parse->streamheader->data;
  g_assert (buf1);
  buf2 = parse->streamheader->next->data;
  g_assert (buf2);
  buf3 = parse->streamheader->next->next->data;
  g_assert (buf3);

  structure = gst_caps_get_structure (caps, 0);

  /* mark buffers */
  GST_BUFFER_FLAG_SET (buf1, GST_BUFFER_FLAG_HEADER);
  GST_BUFFER_FLAG_SET (buf2, GST_BUFFER_FLAG_HEADER);
  GST_BUFFER_FLAG_SET (buf3, GST_BUFFER_FLAG_HEADER);

  /* put buffers in a fixed list */
  g_value_init (&array, GST_TYPE_ARRAY);
  g_value_init (&value, GST_TYPE_BUFFER);
  gst_value_set_buffer (&value, buf1);
  gst_value_array_append_value (&array, &value);
  g_value_unset (&value);
  g_value_init (&value, GST_TYPE_BUFFER);
  gst_value_set_buffer (&value, buf2);
  gst_value_array_append_value (&array, &value);
  g_value_unset (&value);
  g_value_init (&value, GST_TYPE_BUFFER);
  gst_value_set_buffer (&value, buf3);
  gst_value_array_append_value (&array, &value);
  gst_structure_take_value (structure, "streamheader", &array);
  g_value_unset (&value);
}
Beispiel #11
0
static void
gst_x265_enc_add_x265_chroma_format (GstStructure * s,
    int x265_chroma_format_local)
{
  GValue fmt = G_VALUE_INIT;

  GST_INFO ("This x265 build supports 8-bit depth");
  if (x265_chroma_format_local == 0) {
    set_value (&fmt, 2, "I420", "Y444");
  } else if (x265_chroma_format_local == X265_CSP_I444) {
    set_value (&fmt, 1, "Y444");
  } else if (x265_chroma_format_local == X265_CSP_I420) {
    set_value (&fmt, 1, "I420");
  } else {
    GST_ERROR ("Unsupported chroma format %d", x265_chroma_format_local);
  }

  if (G_VALUE_TYPE (&fmt) != G_TYPE_INVALID)
    gst_structure_take_value (s, "format", &fmt);
}
GstFlowReturn GStreamerReader::AllocateVideoBufferFull(GstPad* aPad,
                                                       guint64 aOffset,
                                                       guint aSize,
                                                       GstCaps* aCaps,
                                                       GstBuffer** aBuf,
                                                       nsRefPtr<PlanarYCbCrImage>& aImage)
{
  /* allocate an image using the container */
  ImageContainer* container = mDecoder->GetImageContainer();
  ImageFormat format = PLANAR_YCBCR;
  PlanarYCbCrImage* img = reinterpret_cast<PlanarYCbCrImage*>(container->CreateImage(&format, 1).get());
  nsRefPtr<PlanarYCbCrImage> image = dont_AddRef(img);

  /* prepare a GstBuffer pointing to the underlying PlanarYCbCrImage buffer */
  GstBuffer* buf = gst_buffer_new();
  GST_BUFFER_SIZE(buf) = aSize;
  /* allocate the actual YUV buffer */
  GST_BUFFER_DATA(buf) = image->AllocateAndGetNewBuffer(aSize);

  aImage = image;

#if GST_VERSION_MICRO >= 36
  /* create a GBoxed handle to hold the image */
  BufferData* data = new BufferData(image);

  /* store it in a GValue so we can put it in a GstStructure */
  GValue value = {0,};
  g_value_init(&value, buffer_data_get_type());
  g_value_take_boxed(&value, data);

  /* store the value in the structure */
  GstStructure* structure = gst_structure_new("moz-reader-data", nullptr);
  gst_structure_take_value(structure, "image", &value);

  /* and attach the structure to the buffer */
  gst_buffer_set_qdata(buf, g_quark_from_string("moz-reader-data"), structure);
#endif

  *aBuf = buf;
  return GST_FLOW_OK;
}
GstCaps *
gst_kate_util_set_header_on_caps (GstElement * element, GstCaps * caps,
    GList * headers)
{
  GstStructure *structure;
  GValue array = { 0 };

  GST_LOG_OBJECT (element, "caps: %" GST_PTR_FORMAT, caps);

  if (G_UNLIKELY (!caps))
    return NULL;
  if (G_UNLIKELY (!headers))
    return NULL;

  caps = gst_caps_make_writable (caps);
  structure = gst_caps_get_structure (caps, 0);

  g_value_init (&array, GST_TYPE_ARRAY);

  while (headers) {
    GValue value = { 0 };
    GstBuffer *buffer = headers->data;
    g_assert (buffer);
    g_value_init (&value, GST_TYPE_BUFFER);
    buffer = gst_buffer_copy (buffer);
    GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_HEADER);
    gst_value_take_buffer (&value, buffer);
    gst_value_array_append_value (&array, &value);
    g_value_unset (&value);
    headers = headers->next;
  }

  gst_structure_take_value (structure, "streamheader", &array);

  GST_LOG_OBJECT (element, "here are the newly set caps: %" GST_PTR_FORMAT,
      caps);

  return caps;
}
static GstMessage *
update_rms_from_buffer (GstVideoFrameAudioLevel * self, GstBuffer * inbuf)
{
  GstMapInfo map;
  guint8 *in_data;
  gsize in_size;
  gdouble CS;
  guint i;
  guint num_frames, frames;
  guint num_int_samples = 0;    /* number of interleaved samples
                                 * ie. total count for all channels combined */
  gint channels, rate, bps;
  GValue v = G_VALUE_INIT;
  GValue va = G_VALUE_INIT;
  GValueArray *a;
  GstStructure *s;
  GstMessage *msg;
  GstClockTime duration, running_time;

  channels = GST_AUDIO_INFO_CHANNELS (&self->ainfo);
  bps = GST_AUDIO_INFO_BPS (&self->ainfo);
  rate = GST_AUDIO_INFO_RATE (&self->ainfo);

  gst_buffer_map (inbuf, &map, GST_MAP_READ);
  in_data = map.data;
  in_size = map.size;

  num_int_samples = in_size / bps;

  GST_LOG_OBJECT (self, "analyzing %u sample frames at ts %" GST_TIME_FORMAT,
      num_int_samples, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)));

  g_return_val_if_fail (num_int_samples % channels == 0, NULL);

  num_frames = num_int_samples / channels;
  frames = num_frames;
  duration = GST_FRAMES_TO_CLOCK_TIME (frames, rate);
  if (num_frames > 0) {
    for (i = 0; i < channels; ++i) {
      self->process (in_data + (bps * i), num_int_samples, channels, &CS);
      GST_LOG_OBJECT (self,
          "[%d]: cumulative squares %lf, over %d samples/%d channels",
          i, CS, num_int_samples, channels);
      self->CS[i] += CS;
    }
    in_data += num_frames * bps;

    self->total_frames += num_frames;
  }
  running_time =
      self->first_time + gst_util_uint64_scale (self->total_frames, GST_SECOND,
      rate);

  a = g_value_array_new (channels);
  s = gst_structure_new ("videoframe-audiolevel", "running-time", G_TYPE_UINT64,
      running_time, "duration", G_TYPE_UINT64, duration, NULL);

  g_value_init (&v, G_TYPE_DOUBLE);
  g_value_init (&va, G_TYPE_VALUE_ARRAY);
  for (i = 0; i < channels; i++) {
    gdouble rms;
    if (frames == 0 || self->CS[i] == 0) {
      rms = 0;                  /* empty buffer */
    } else {
      rms = sqrt (self->CS[i] / frames);
    }
    self->CS[i] = 0.0;
    g_value_set_double (&v, rms);
    g_value_array_append (a, &v);
  }
  g_value_take_boxed (&va, a);
  gst_structure_take_value (s, "rms", &va);
  msg = gst_message_new_element (GST_OBJECT (self), s);

  gst_buffer_unmap (inbuf, &map);

  return msg;
}
/* Reads in buffers, parses them, reframes into one-buffer-per-ogg-page, submits
 * pages to output pad.
 */
static GstFlowReturn
gst_ogg_parse_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
  GstOggParse *ogg;
  GstFlowReturn result = GST_FLOW_OK;
  gint ret = -1;
  guint32 serialno;
  GstBuffer *pagebuffer;
  GstClockTime buffertimestamp = GST_BUFFER_TIMESTAMP (buffer);

  ogg = GST_OGG_PARSE (parent);

  GST_LOG_OBJECT (ogg,
      "Chain function received buffer of size %" G_GSIZE_FORMAT,
      gst_buffer_get_size (buffer));

  gst_ogg_parse_submit_buffer (ogg, buffer);

  while (ret != 0 && result == GST_FLOW_OK) {
    ogg_page page;

    /* We use ogg_sync_pageseek() rather than ogg_sync_pageout() so that we can
     * track how many bytes the ogg layer discarded (in the case of sync errors,
     * etc.); this allows us to accurately track the current stream offset
     */
    ret = ogg_sync_pageseek (&ogg->sync, &page);
    if (ret == 0) {
      /* need more data, that's fine... */
      break;
    } else if (ret < 0) {
      /* discontinuity; track how many bytes we skipped (-ret) */
      ogg->offset -= ret;
    } else {
      gint64 granule = ogg_page_granulepos (&page);
#ifndef GST_DISABLE_GST_DEBUG
      int bos = ogg_page_bos (&page);
#endif
      guint64 startoffset = ogg->offset;
      GstOggStream *stream;
      gboolean keyframe;

      serialno = ogg_page_serialno (&page);
      stream = gst_ogg_parse_find_stream (ogg, serialno);

      GST_LOG_OBJECT (ogg, "Timestamping outgoing buffer as %" GST_TIME_FORMAT,
          GST_TIME_ARGS (buffertimestamp));

      if (stream) {
        buffertimestamp = gst_ogg_stream_get_end_time_for_granulepos (stream,
            granule);
        if (ogg->video_stream) {
          if (stream == ogg->video_stream) {
            keyframe = gst_ogg_stream_granulepos_is_key_frame (stream, granule);
          } else {
            keyframe = FALSE;
          }
        } else {
          keyframe = TRUE;
        }
      } else {
        buffertimestamp = GST_CLOCK_TIME_NONE;
        keyframe = TRUE;
      }
      pagebuffer = gst_ogg_parse_buffer_from_page (&page, startoffset,
          buffertimestamp);

      /* We read out 'ret' bytes, so we set the next offset appropriately */
      ogg->offset += ret;

      GST_LOG_OBJECT (ogg,
          "processing ogg page (serial %08x, pageno %ld, "
          "granule pos %" G_GUINT64_FORMAT ", bos %d, offset %"
          G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT ") keyframe=%d",
          serialno, ogg_page_pageno (&page),
          granule, bos, startoffset, ogg->offset, keyframe);

      if (ogg_page_bos (&page)) {
        /* If we've seen this serialno before, this is technically an error,
         * we log this case but accept it - this one replaces the previous
         * stream with this serialno. We can do this since we're streaming, and
         * not supporting seeking...
         */
        GstOggStream *stream = gst_ogg_parse_find_stream (ogg, serialno);

        if (stream != NULL) {
          GST_LOG_OBJECT (ogg, "Incorrect stream; repeats serial number %08x "
              "at offset %" G_GINT64_FORMAT, serialno, ogg->offset);
        }

        if (ogg->last_page_not_bos) {
          GST_LOG_OBJECT (ogg, "Deleting all referenced streams, found a new "
              "chain starting with serial %u", serialno);
          gst_ogg_parse_delete_all_streams (ogg);
        }

        stream = gst_ogg_parse_new_stream (ogg, &page);

        ogg->last_page_not_bos = FALSE;

        gst_buffer_ref (pagebuffer);
        stream->headers = g_list_append (stream->headers, pagebuffer);

        if (!ogg->in_headers) {
          GST_LOG_OBJECT (ogg,
              "Found start of new chain at offset %" G_GUINT64_FORMAT,
              startoffset);
          ogg->in_headers = 1;
        }

        /* For now, we just keep the header buffer in the stream->headers list;
         * it actually gets output once we've collected the entire set
         */
      } else {
        /* Non-BOS page. Either: we're outside headers, and this isn't a 
         * header (normal data), outside headers and this is (error!), inside
         * headers, this is (append header), or inside headers and this isn't 
         * (we've found the end of headers; flush the lot!)
         *
         * Before that, we flag that the last page seen (this one) was not a 
         * BOS page; that way we know that when we next see a BOS page it's a
         * new chain, and we can flush all existing streams.
         */
        page_type type;
        GstOggStream *stream = gst_ogg_parse_find_stream (ogg, serialno);

        if (!stream) {
          GST_LOG_OBJECT (ogg,
              "Non-BOS page unexpectedly found at %" G_GINT64_FORMAT,
              ogg->offset);
          goto failure;
        }

        ogg->last_page_not_bos = TRUE;

        type = gst_ogg_parse_is_header (ogg, stream, &page);

        if (type == PAGE_PENDING && ogg->in_headers) {
          gst_buffer_ref (pagebuffer);

          stream->unknown_pages = g_list_append (stream->unknown_pages,
              pagebuffer);
        } else if (type == PAGE_HEADER) {
          if (!ogg->in_headers) {
            GST_LOG_OBJECT (ogg, "Header page unexpectedly found outside "
                "headers at offset %" G_GINT64_FORMAT, ogg->offset);
            goto failure;
          } else {
            /* Append the header to the buffer list, after any unknown previous
             * pages
             */
            stream->headers = g_list_concat (stream->headers,
                stream->unknown_pages);
            g_list_free (stream->unknown_pages);
            gst_buffer_ref (pagebuffer);
            stream->headers = g_list_append (stream->headers, pagebuffer);
          }
        } else {                /* PAGE_DATA, or PAGE_PENDING but outside headers */
          if (ogg->in_headers) {
            /* First non-header page... set caps, flush headers.
             *
             * First up, we build a single GValue list of all the pagebuffers
             * we're using for the headers, in order.
             * Then we set this on the caps structure. Then we can start pushing
             * buffers for the headers, and finally we send this non-header
             * page.
             */
            GstCaps *caps;
            GstStructure *structure;
            GValue array = { 0 };
            gint count = 0;
            gboolean found_pending_headers = FALSE;
            GSList *l;

            g_value_init (&array, GST_TYPE_ARRAY);

            for (l = ogg->oggstreams; l != NULL; l = l->next) {
              GstOggStream *stream = (GstOggStream *) l->data;

              if (g_list_length (stream->headers) == 0) {
                GST_LOG_OBJECT (ogg, "No primary header found for stream %08x",
                    stream->serialno);
                goto failure;
              }

              gst_ogg_parse_append_header (&array,
                  GST_BUFFER (stream->headers->data));
              count++;
            }

            for (l = ogg->oggstreams; l != NULL; l = l->next) {
              GstOggStream *stream = (GstOggStream *) l->data;
              GList *j;

              /* already appended the first header, now do headers 2-N */
              for (j = stream->headers->next; j != NULL; j = j->next) {
                gst_ogg_parse_append_header (&array, GST_BUFFER (j->data));
                count++;
              }
            }

            caps = gst_pad_query_caps (ogg->srcpad, NULL);
            caps = gst_caps_make_writable (caps);

            structure = gst_caps_get_structure (caps, 0);
            gst_structure_take_value (structure, "streamheader", &array);

            gst_pad_set_caps (ogg->srcpad, caps);

            if (ogg->caps)
              gst_caps_unref (ogg->caps);
            ogg->caps = caps;

            GST_LOG_OBJECT (ogg, "Set \"streamheader\" caps with %d buffers "
                "(one per page)", count);

            /* Now, we do the same thing, but push buffers... */
            for (l = ogg->oggstreams; l != NULL; l = l->next) {
              GstOggStream *stream = (GstOggStream *) l->data;
              GstBuffer *buf = GST_BUFFER (stream->headers->data);

              result = gst_pad_push (ogg->srcpad, buf);
              if (result != GST_FLOW_OK)
                return result;
            }
            for (l = ogg->oggstreams; l != NULL; l = l->next) {
              GstOggStream *stream = (GstOggStream *) l->data;
              GList *j;

              /* pushed the first one for each stream already, now do 2-N */
              for (j = stream->headers->next; j != NULL; j = j->next) {
                GstBuffer *buf = GST_BUFFER (j->data);

                result = gst_pad_push (ogg->srcpad, buf);
                if (result != GST_FLOW_OK)
                  return result;
              }
            }

            ogg->in_headers = 0;

            /* And finally the pending data pages */
            for (l = ogg->oggstreams; l != NULL; l = l->next) {
              GstOggStream *stream = (GstOggStream *) l->data;
              GList *k;

              if (stream->unknown_pages == NULL)
                continue;

              if (found_pending_headers) {
                GST_WARNING_OBJECT (ogg, "Incorrectly muxed headers found at "
                    "approximate offset %" G_GINT64_FORMAT, ogg->offset);
              }
              found_pending_headers = TRUE;

              GST_LOG_OBJECT (ogg, "Pushing %d pending pages after headers",
                  g_list_length (stream->unknown_pages) + 1);

              for (k = stream->unknown_pages; k != NULL; k = k->next) {
                GstBuffer *buf = GST_BUFFER (k->data);

                result = gst_pad_push (ogg->srcpad, buf);
                if (result != GST_FLOW_OK)
                  return result;
              }
              g_list_foreach (stream->unknown_pages,
                  (GFunc) gst_mini_object_unref, NULL);
              g_list_free (stream->unknown_pages);
              stream->unknown_pages = NULL;
            }
          }

          if (granule == -1) {
            stream->stored_buffers = g_list_append (stream->stored_buffers,
                pagebuffer);
          } else {
            while (stream->stored_buffers) {
              GstBuffer *buf = stream->stored_buffers->data;

              buf = gst_buffer_make_writable (buf);

              GST_BUFFER_TIMESTAMP (buf) = buffertimestamp;
              if (!keyframe) {
                GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
              } else {
                keyframe = FALSE;
              }

              result = gst_pad_push (ogg->srcpad, buf);
              if (result != GST_FLOW_OK)
                return result;

              stream->stored_buffers =
                  g_list_delete_link (stream->stored_buffers,
                  stream->stored_buffers);
            }

            pagebuffer = gst_buffer_make_writable (pagebuffer);
            if (!keyframe) {
              GST_BUFFER_FLAG_SET (pagebuffer, GST_BUFFER_FLAG_DELTA_UNIT);
            } else {
              keyframe = FALSE;
            }

            result = gst_pad_push (ogg->srcpad, pagebuffer);
            if (result != GST_FLOW_OK)
              return result;
          }
        }
      }
    }
  }

  return result;

failure:
  gst_pad_push_event (GST_PAD (ogg->srcpad), gst_event_new_eos ());
  return GST_FLOW_ERROR;
}
static GstCaps *
gst_rtp_h264_pay_getcaps (GstRTPBasePayload * payload, GstPad * pad,
    GstCaps * filter)
{
  GstCaps *template_caps;
  GstCaps *allowed_caps;
  GstCaps *caps, *icaps;
  gboolean append_unrestricted;
  guint i;

  allowed_caps =
      gst_pad_peer_query_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload), NULL);

  if (allowed_caps == NULL)
    return NULL;

  template_caps =
      gst_static_pad_template_get_caps (&gst_rtp_h264_pay_sink_template);

  if (gst_caps_is_any (allowed_caps)) {
    caps = gst_caps_ref (template_caps);
    goto done;
  }

  if (gst_caps_is_empty (allowed_caps)) {
    caps = gst_caps_ref (allowed_caps);
    goto done;
  }

  caps = gst_caps_new_empty ();

  append_unrestricted = FALSE;
  for (i = 0; i < gst_caps_get_size (allowed_caps); i++) {
    GstStructure *s = gst_caps_get_structure (allowed_caps, i);
    GstStructure *new_s = gst_structure_new_empty ("video/x-h264");
    const gchar *profile_level_id;

    profile_level_id = gst_structure_get_string (s, "profile-level-id");

    if (profile_level_id && strlen (profile_level_id) == 6) {
      const gchar *profile;
      const gchar *level;
      long int spsint;
      guint8 sps[3];

      spsint = strtol (profile_level_id, NULL, 16);
      sps[0] = spsint >> 16;
      sps[1] = spsint >> 8;
      sps[2] = spsint;

      profile = gst_codec_utils_h264_get_profile (sps, 3);
      level = gst_codec_utils_h264_get_level (sps, 3);

      if (profile && level) {
        GST_LOG_OBJECT (payload, "In caps, have profile %s and level %s",
            profile, level);

        if (!strcmp (profile, "constrained-baseline"))
          gst_structure_set (new_s, "profile", G_TYPE_STRING, profile, NULL);
        else {
          GValue val = { 0, };
          GValue profiles = { 0, };

          g_value_init (&profiles, GST_TYPE_LIST);
          g_value_init (&val, G_TYPE_STRING);

          g_value_set_static_string (&val, profile);
          gst_value_list_append_value (&profiles, &val);

          g_value_set_static_string (&val, "constrained-baseline");
          gst_value_list_append_value (&profiles, &val);

          gst_structure_take_value (new_s, "profile", &profiles);
        }

        if (!strcmp (level, "1"))
          gst_structure_set (new_s, "level", G_TYPE_STRING, level, NULL);
        else {
          GValue levels = { 0, };
          GValue val = { 0, };
          int j;

          g_value_init (&levels, GST_TYPE_LIST);
          g_value_init (&val, G_TYPE_STRING);

          for (j = 0; j < G_N_ELEMENTS (all_levels); j++) {
            g_value_set_static_string (&val, all_levels[j]);
            gst_value_list_prepend_value (&levels, &val);
            if (!strcmp (level, all_levels[j]))
              break;
          }
          gst_structure_take_value (new_s, "level", &levels);
        }
      } else {
        /* Invalid profile-level-id means baseline */

        gst_structure_set (new_s,
            "profile", G_TYPE_STRING, "constrained-baseline", NULL);
      }
    } else {
      /* No profile-level-id means baseline or unrestricted */

      gst_structure_set (new_s,
          "profile", G_TYPE_STRING, "constrained-baseline", NULL);
      append_unrestricted = TRUE;
    }

    caps = gst_caps_merge_structure (caps, new_s);
  }
GstCaps* convert_videoformatsdescription_to_caps (const std::vector<tcam::VideoFormatDescription>& descriptions)
{
    GstCaps* caps = gst_caps_new_empty();

    for (const auto& desc : descriptions)
    {
        if (desc.get_fourcc() == 0)
        {
            tcam_info("Format has empty fourcc. Ignoring");
            continue;
        }

        const char* caps_string = tcam_fourcc_to_gst_1_0_caps_string(desc.get_fourcc());

        if (caps_string == nullptr)
        {
            tcam_warning("Format has empty caps string. Ignoring %s",
                         tcam::fourcc_to_description(desc.get_fourcc()));
            continue;
        }

        // tcam_error("Found '%s' pixel format string", caps_string);

        std::vector<struct tcam_resolution_description> res = desc.get_resolutions();

        for (const auto& r : res)
        {
            int min_width = r.min_size.width;
            int min_height = r.min_size.height;

            int max_width = r.max_size.width;
            int max_height = r.max_size.height;

            if (r.type == TCAM_RESOLUTION_TYPE_RANGE)
            {
                std::vector<struct tcam_image_size> framesizes = tcam::get_standard_resolutions(r.min_size,
                                                                                                r.max_size);

                // check if min/max are already in the vector.
                // some devices return std resolutions as max
                if (r.min_size != framesizes.front())
                {
                    framesizes.insert(framesizes.begin(), r.min_size);
                }

                if (r.max_size != framesizes.back())
                {
                    framesizes.push_back(r.max_size);
                }

                for (const auto& reso : framesizes)
                {
                    GstStructure* structure = gst_structure_from_string (caps_string, NULL);

                    std::vector<double> framerates = desc.get_framerates(reso);

                    if (framerates.empty())
                    {
                        // tcam_log(TCAM_LOG_WARNING, "No available framerates. Ignoring format.");
                        continue;
                    }

                    GValue fps_list = G_VALUE_INIT;
                    g_value_init(&fps_list, GST_TYPE_LIST);

                    for (const auto& f : framerates)
                    {
                        int frame_rate_numerator;
                        int frame_rate_denominator;
                        gst_util_double_to_fraction(f,
                                                    &frame_rate_numerator,
                                                    &frame_rate_denominator);

                        if ((frame_rate_denominator == 0) || (frame_rate_numerator == 0))
                        {
                            continue;
                        }

                        GValue fraction = G_VALUE_INIT;
                        g_value_init(&fraction, GST_TYPE_FRACTION);
                        gst_value_set_fraction(&fraction, frame_rate_numerator, frame_rate_denominator);
                        gst_value_list_append_value(&fps_list, &fraction);
                        g_value_unset(&fraction);
                    }


                    gst_structure_set (structure,
                                       "width", G_TYPE_INT, reso.width,
                                       "height", G_TYPE_INT, reso.height,
                                       NULL);

                    gst_structure_take_value(structure, "framerate", &fps_list);
                    gst_caps_append_structure (caps, structure);

                }

                // finally also add the range to allow unusual settings like 1920x96@90fps
                GstStructure* structure = gst_structure_from_string (caps_string, NULL);

                GValue w = G_VALUE_INIT;
                g_value_init(&w, GST_TYPE_INT_RANGE);
                gst_value_set_int_range(&w, min_width, max_width);

                GValue h = G_VALUE_INIT;
                g_value_init(&h, GST_TYPE_INT_RANGE);
                gst_value_set_int_range(&h, min_height, max_height);

                std::vector<double> fps = desc.get_frame_rates(r);

                if (fps.empty())
                {
                    // GST_ERROR("Could not find any framerates for format");
                    continue;
                }

                int fps_min_num;
                int fps_min_den;
                int fps_max_num;
                int fps_max_den;
                gst_util_double_to_fraction(*std::min_element(fps.begin(), fps.end()),
                                            &fps_min_num,
                                            &fps_min_den);
                gst_util_double_to_fraction(*std::max_element(fps.begin(), fps.end()),
                                            &fps_max_num,
                                            &fps_max_den);

                GValue f = G_VALUE_INIT;
                g_value_init(&f, GST_TYPE_FRACTION_RANGE);

                gst_value_set_fraction_range_full(&f,
                                                  fps_min_num, fps_min_den,
                                                  fps_max_num, fps_max_den);

                gst_structure_set_value(structure, "width", &w);
                gst_structure_set_value(structure,"height", &h);
                gst_structure_set_value(structure,"framerate", &f);
                gst_caps_append_structure(caps, structure);
            }
            else
            {
                GstStructure* structure = gst_structure_from_string (caps_string, NULL);

                fill_structure_fixed_resolution(structure, desc, r);
                gst_caps_append_structure (caps, structure);
            }
        }

    }

    return caps;
}
Beispiel #18
-1
static void
gst_droidcamsrc_dev_preview_metadata_callback (void *user,
    const DroidMediaCameraFace * faces, size_t num_faces)
{
  GstDroidCamSrcDev *dev = (GstDroidCamSrcDev *) user;
  GstDroidCamSrc *src = GST_DROIDCAMSRC (GST_PAD_PARENT (dev->imgsrc->pad));
  GstStructure *s;
  gint width, height;
  GValue regions = G_VALUE_INIT;
  gint i;

  GST_DEBUG_OBJECT (src, "dev preview metadata callback");

  GST_INFO_OBJECT (src, "camera detected %d faces", num_faces);

  GST_OBJECT_LOCK (src);
  width = src->width;
  height = src->height;
  GST_OBJECT_UNLOCK (src);

  s = gst_structure_new ("regions-of-interest", "frame-width", G_TYPE_UINT,
      width, "frame-height", G_TYPE_UINT, height, "type", G_TYPE_UINT,
      GST_DROIDCAMSRC_ROI_FACE_AREA, NULL);

  g_value_init (&regions, GST_TYPE_LIST);

  for (i = 0; i < num_faces; i++) {
    GValue region = G_VALUE_INIT;
    int x, y, w, h, r, b;
    GstStructure *rs;

    g_value_init (&region, GST_TYPE_STRUCTURE);

    GST_DEBUG_OBJECT (src,
        "face %d: score=%d, left=%d, top=%d, right=%d, bottom=%d", i,
        faces[i].score, faces[i].left, faces[i].top, faces[i].right,
        faces[i].bottom);
    x = gst_util_uint64_scale (faces[i].left + 1000, width, 2000);
    y = gst_util_uint64_scale (faces[i].top + 1000, height, 2000);
    r = gst_util_uint64_scale (faces[i].right + 1000, width, 2000);
    b = gst_util_uint64_scale (faces[i].bottom + 1000, height, 2000);
    w = r - x;
    h = b - y;
    rs = gst_structure_new ("region-of-interest",
        "region-x", G_TYPE_UINT, x,
        "region-y", G_TYPE_UINT, y,
        "region-w", G_TYPE_UINT, w,
        "region-h", G_TYPE_UINT, h,
        "region-id", G_TYPE_INT, faces[i].id,
        "region-score", G_TYPE_INT, faces[i].score, NULL);

    gst_value_set_structure (&region, rs);
    gst_structure_free (rs);
    gst_value_list_append_value (&regions, &region);
    g_value_unset (&region);
  }

  gst_structure_take_value (s, "regions", &regions);
  gst_droidcamsrc_post_message (src, s);
}