C++ (Cpp) gst_hls_demux_decrypt_fragment Exemples

Exemple #1

Fichier : gsthlsdemux.c Projet : 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);
}

Exemple #2

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);
}