Exemplos de gst_hls_demux_handle_buffer em C++ (Cpp)

Exemplo n.º 1

Arquivo: gsthlsdemux.c Projeto: iperry/gst-plugins-bad

static GstFlowReturn
gst_hls_demux_finish_fragment (GstAdaptiveDemux * demux,
    GstAdaptiveDemuxStream * stream)
{
  GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
  GstFlowReturn ret = GST_FLOW_OK;

  if (hlsdemux->current_key)
    gst_hls_demux_decrypt_end (hlsdemux);

  /* ideally this should be empty, but this eos might have been
   * caused by an error on the source element */
  GST_DEBUG_OBJECT (demux, "Data still on the adapter when EOS was received"
      ": %" G_GSIZE_FORMAT, gst_adapter_available (stream->adapter));
  gst_adapter_clear (stream->adapter);

  if (stream->last_ret == GST_FLOW_OK) {
    if (hlsdemux->pending_buffer) {
      if (hlsdemux->current_key) {
        GstMapInfo info;
        gssize unpadded_size;

        /* Handle pkcs7 unpadding here */
        gst_buffer_map (hlsdemux->pending_buffer, &info, GST_MAP_READ);
        unpadded_size = info.size - info.data[info.size - 1];
        gst_buffer_unmap (hlsdemux->pending_buffer, &info);

        gst_buffer_resize (hlsdemux->pending_buffer, 0, unpadded_size);
      }

      ret =
          gst_hls_demux_handle_buffer (demux, stream, hlsdemux->pending_buffer,
          TRUE);
      hlsdemux->pending_buffer = NULL;
    }
  } else {
    if (hlsdemux->pending_buffer)
      gst_buffer_unref (hlsdemux->pending_buffer);
    hlsdemux->pending_buffer = NULL;
  }

  if (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED)
    return gst_adaptive_demux_stream_advance_fragment (demux, stream,
        stream->fragment.duration);
  return ret;
}

Exemplo n.º 2

Arquivo: gsthlsdemux.c Projeto: iperry/gst-plugins-bad

static GstFlowReturn
gst_hls_demux_data_received (GstAdaptiveDemux * demux,
    GstAdaptiveDemuxStream * stream)
{
  GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
  gsize available;
  GstBuffer *buffer = NULL;

  available = gst_adapter_available (stream->adapter);

  /* Is it encrypted? */
  if (hlsdemux->current_key) {
    GError *err = NULL;
    GstBuffer *tmp_buffer;

    /* must be a multiple of 16 */
    available = available & (~0xF);

    if (available == 0) {
      return GST_FLOW_OK;
    }

    buffer = gst_adapter_take_buffer (stream->adapter, available);
    buffer = gst_hls_demux_decrypt_fragment (hlsdemux, buffer, &err);
    if (buffer == NULL) {
      GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Failed to decrypt buffer"),
          ("decryption failed %s", err->message));
      g_error_free (err);
      return GST_FLOW_ERROR;
    }

    tmp_buffer = hlsdemux->pending_buffer;
    hlsdemux->pending_buffer = buffer;
    buffer = tmp_buffer;
  } else {
    buffer = gst_adapter_take_buffer (stream->adapter, available);
    if (hlsdemux->pending_buffer) {
      buffer = gst_buffer_append (hlsdemux->pending_buffer, buffer);
      hlsdemux->pending_buffer = NULL;
    }
  }

  return gst_hls_demux_handle_buffer (demux, stream, buffer, FALSE);
}

Exemplo n.º 3

static GstFlowReturn
gst_hls_demux_data_received (GstAdaptiveDemux * demux,
    GstAdaptiveDemuxStream * stream, GstBuffer * buffer)
{
  GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);

  if (hlsdemux->current_offset == -1)
    hlsdemux->current_offset =
        GST_BUFFER_OFFSET_IS_VALID (buffer) ? GST_BUFFER_OFFSET (buffer) : 0;

  /* Is it encrypted? */
  if (hlsdemux->current_key) {
    GError *err = NULL;
    gsize size;
    GstBuffer *tmp_buffer;

    gst_adapter_push (hlsdemux->pending_encrypted_data, buffer);
    size = gst_adapter_available (hlsdemux->pending_encrypted_data);

    /* must be a multiple of 16 */
    size = size & (~0xF);

    if (size == 0) {
      return GST_FLOW_OK;
    }

    buffer = gst_adapter_take_buffer (hlsdemux->pending_encrypted_data, size);
    buffer = gst_hls_demux_decrypt_fragment (hlsdemux, buffer, &err);
    if (buffer == NULL) {
      GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Failed to decrypt buffer"),
          ("decryption failed %s", err->message));
      g_error_free (err);
      return GST_FLOW_ERROR;
    }

    tmp_buffer = hlsdemux->pending_decrypted_buffer;
    hlsdemux->pending_decrypted_buffer = buffer;
    buffer = tmp_buffer;
  }

  return gst_hls_demux_handle_buffer (demux, stream, buffer, FALSE);
}

Exemplo n.º 4

static GstFlowReturn
gst_hls_demux_finish_fragment (GstAdaptiveDemux * demux,
    GstAdaptiveDemuxStream * stream)
{
  GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
  GstFlowReturn ret = GST_FLOW_OK;

  if (hlsdemux->current_key)
    gst_hls_demux_decrypt_end (hlsdemux);

  if (stream->last_ret == GST_FLOW_OK) {
    if (hlsdemux->pending_decrypted_buffer) {
      if (hlsdemux->current_key) {
        GstMapInfo info;
        gssize unpadded_size;

        /* Handle pkcs7 unpadding here */
        gst_buffer_map (hlsdemux->pending_decrypted_buffer, &info,
            GST_MAP_READ);
        unpadded_size = info.size - info.data[info.size - 1];
        gst_buffer_unmap (hlsdemux->pending_decrypted_buffer, &info);

        gst_buffer_resize (hlsdemux->pending_decrypted_buffer, 0,
            unpadded_size);
      }

      ret =
          gst_hls_demux_handle_buffer (demux, stream,
          hlsdemux->pending_decrypted_buffer, TRUE);
      hlsdemux->pending_decrypted_buffer = NULL;
    }
  }
  gst_hls_demux_clear_pending_data (hlsdemux);

  if (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED)
    return gst_adaptive_demux_stream_advance_fragment (demux, stream,
        stream->fragment.duration);
  return ret;
}