예제 #1
0
static void
gst_droidadec_error (void *data, int err)
{
  GstDroidADec *dec = (GstDroidADec *) data;

  GST_DEBUG_OBJECT (dec, "codec error");

  GST_AUDIO_DECODER_STREAM_LOCK (dec);
  dec->running = FALSE;
  GST_AUDIO_DECODER_STREAM_UNLOCK (dec);

  g_mutex_lock (&dec->eos_lock);

  if (dec->eos) {
    /* Gotta love Android. We will ignore errors if we are expecting EOS */
    g_cond_signal (&dec->eos_cond);
    goto out;
  }

  GST_AUDIO_DECODER_STREAM_LOCK (dec);
  dec->downstream_flow_ret = GST_FLOW_ERROR;
  GST_AUDIO_DECODER_STREAM_UNLOCK (dec);

  GST_ELEMENT_ERROR (dec, LIBRARY, FAILED, NULL,
      ("error 0x%x from android codec", -err));

out:
  g_mutex_unlock (&dec->eos_lock);
}
예제 #2
0
static void
gst_amc_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard)
{
  GstAmcAudioDec *self;

  self = GST_AMC_AUDIO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Resetting decoder");

  if (!self->started) {
    GST_DEBUG_OBJECT (self, "Codec not started yet");
    return;
  }

  self->flushing = TRUE;
  gst_amc_codec_flush (self->codec);

  /* Wait until the srcpad loop is finished,
   * unlock GST_AUDIO_DECODER_STREAM_LOCK to prevent deadlocks
   * caused by using this lock from inside the loop function */
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  GST_PAD_STREAM_LOCK (GST_AUDIO_DECODER_SRC_PAD (self));
  GST_PAD_STREAM_UNLOCK (GST_AUDIO_DECODER_SRC_PAD (self));
  GST_AUDIO_DECODER_STREAM_LOCK (self);
  self->flushing = FALSE;

  /* Start the srcpad loop again */
  self->last_upstream_ts = 0;
  self->eos = FALSE;
  self->downstream_flow_ret = GST_FLOW_OK;
  gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self),
      (GstTaskFunction) gst_amc_audio_dec_loop, decoder, NULL);

  GST_DEBUG_OBJECT (self, "Reset decoder");
}
static void
gst_omx_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard)
{
  GstOMXAudioDec *self = GST_OMX_AUDIO_DEC (decoder);
  OMX_ERRORTYPE err = OMX_ErrorNone;

  GST_DEBUG_OBJECT (self, "Flushing decoder");

  if (gst_omx_component_get_state (self->dec, 0) == OMX_StateLoaded)
    return;

  /* 0) Pause the components */
  if (gst_omx_component_get_state (self->dec, 0) == OMX_StateExecuting) {
    gst_omx_component_set_state (self->dec, OMX_StatePause);
    gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE);
  }

  /* 1) Wait until the srcpad loop is stopped,
   * unlock GST_AUDIO_DECODER_STREAM_LOCK to prevent deadlocks
   * caused by using this lock from inside the loop function */
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  gst_pad_stop_task (GST_AUDIO_DECODER_SRC_PAD (decoder));
  GST_DEBUG_OBJECT (self, "Flushing -- task stopped");
  GST_AUDIO_DECODER_STREAM_LOCK (self);

  /* 2) Flush the ports */
  GST_DEBUG_OBJECT (self, "flushing ports");
  gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, TRUE);
  gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE);

  /* 3) Resume components */
  gst_omx_component_set_state (self->dec, OMX_StateExecuting);
  gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE);

  /* 4) Unset flushing to allow ports to accept data again */
  gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, FALSE);
  gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, FALSE);

  err = gst_omx_port_populate (self->dec_out_port);

  if (err != OMX_ErrorNone) {
    GST_WARNING_OBJECT (self, "Failed to populate output port: %s (0x%08x)",
        gst_omx_error_to_string (err), err);
  }

  /* Reset our state */
  self->last_upstream_ts = 0;
  self->downstream_flow_ret = GST_FLOW_OK;
  self->started = FALSE;
  GST_DEBUG_OBJECT (self, "Flush finished");
}
예제 #4
0
static gboolean
gst_amc_audio_dec_set_format (GstAudioDecoder * decoder, GstCaps * caps)
{
  GstAmcAudioDec *self;
  GstStructure *s;
  GstAmcFormat *format;
  const gchar *mime;
  gboolean is_format_change = FALSE;
  gboolean needs_disable = FALSE;
  gchar *format_string;
  gint rate, channels;
  GError *err = NULL;

  self = GST_AMC_AUDIO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, caps);

  /* Check if the caps change is a real format change or if only irrelevant
   * parts of the caps have changed or nothing at all.
   */
  is_format_change |= (!self->input_caps
      || !gst_caps_is_equal (self->input_caps, caps));

  needs_disable = self->started;

  /* If the component is not started and a real format change happens
   * we have to restart the component. If no real format change
   * happened we can just exit here.
   */
  if (needs_disable && !is_format_change) {
    /* Framerate or something minor changed */
    self->input_caps_changed = TRUE;
    GST_DEBUG_OBJECT (self,
        "Already running and caps did not change the format");
    return TRUE;
  }

  if (needs_disable && is_format_change) {
    gst_amc_audio_dec_drain (self);
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    gst_amc_audio_dec_stop (GST_AUDIO_DECODER (self));
    GST_AUDIO_DECODER_STREAM_LOCK (self);
    gst_amc_audio_dec_close (GST_AUDIO_DECODER (self));
    if (!gst_amc_audio_dec_open (GST_AUDIO_DECODER (self))) {
      GST_ERROR_OBJECT (self, "Failed to open codec again");
      return FALSE;
    }

    if (!gst_amc_audio_dec_start (GST_AUDIO_DECODER (self))) {
      GST_ERROR_OBJECT (self, "Failed to start codec again");
    }
  }
  /* srcpad task is not running at this point */

  mime = caps_to_mime (caps);
  if (!mime) {
    GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
    return FALSE;
  }

  s = gst_caps_get_structure (caps, 0);
  if (!gst_structure_get_int (s, "rate", &rate) ||
      !gst_structure_get_int (s, "channels", &channels)) {
    GST_ERROR_OBJECT (self, "Failed to get rate/channels");
    return FALSE;
  }

  format = gst_amc_format_new_audio (mime, rate, channels, &err);
  if (!format) {
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    return FALSE;
  }

  /* FIXME: These buffers needs to be valid until the codec is stopped again */
  g_list_foreach (self->codec_datas, (GFunc) gst_buffer_unref, NULL);
  g_list_free (self->codec_datas);
  self->codec_datas = NULL;
  if (gst_structure_has_field (s, "codec_data")) {
    const GValue *h = gst_structure_get_value (s, "codec_data");
    GstBuffer *codec_data = gst_value_get_buffer (h);
    GstMapInfo minfo;
    guint8 *data;

    gst_buffer_map (codec_data, &minfo, GST_MAP_READ);
    data = g_memdup (minfo.data, minfo.size);
    self->codec_datas = g_list_prepend (self->codec_datas, data);
    gst_amc_format_set_buffer (format, "csd-0", data, minfo.size, &err);
    if (err)
      GST_ELEMENT_WARNING_FROM_ERROR (self, err);
    gst_buffer_unmap (codec_data, &minfo);
  } else if (gst_structure_has_field (s, "streamheader")) {
    const GValue *sh = gst_structure_get_value (s, "streamheader");
    gint nsheaders = gst_value_array_get_size (sh);
    GstBuffer *buf;
    const GValue *h;
    gint i, j;
    gchar *fname;
    GstMapInfo minfo;
    guint8 *data;

    for (i = 0, j = 0; i < nsheaders; i++) {
      h = gst_value_array_get_value (sh, i);
      buf = gst_value_get_buffer (h);

      if (strcmp (mime, "audio/vorbis") == 0) {
        guint8 header_type;

        gst_buffer_extract (buf, 0, &header_type, 1);

        /* Only use the identification and setup packets */
        if (header_type != 0x01 && header_type != 0x05)
          continue;
      }

      fname = g_strdup_printf ("csd-%d", j);
      gst_buffer_map (buf, &minfo, GST_MAP_READ);
      data = g_memdup (minfo.data, minfo.size);
      self->codec_datas = g_list_prepend (self->codec_datas, data);
      gst_amc_format_set_buffer (format, fname, data, minfo.size, &err);
      if (err)
        GST_ELEMENT_WARNING_FROM_ERROR (self, err);
      gst_buffer_unmap (buf, &minfo);
      g_free (fname);
      j++;
    }
  }

  format_string = gst_amc_format_to_string (format, &err);
  if (err)
    GST_ELEMENT_WARNING_FROM_ERROR (self, err);
  GST_DEBUG_OBJECT (self, "Configuring codec with format: %s",
      GST_STR_NULL (format_string));
  g_free (format_string);

  if (!gst_amc_codec_configure (self->codec, format, 0, &err)) {
    GST_ERROR_OBJECT (self, "Failed to configure codec");
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    return FALSE;
  }

  gst_amc_format_free (format);

  if (!gst_amc_codec_start (self->codec, &err)) {
    GST_ERROR_OBJECT (self, "Failed to start codec");
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    return FALSE;
  }

  self->spf = -1;
  /* TODO: Implement for other codecs too */
  if (gst_structure_has_name (s, "audio/mpeg")) {
    gint mpegversion = -1;

    gst_structure_get_int (s, "mpegversion", &mpegversion);
    if (mpegversion == 1) {
      gint layer = -1, mpegaudioversion = -1;

      gst_structure_get_int (s, "layer", &layer);
      gst_structure_get_int (s, "mpegaudioversion", &mpegaudioversion);
      if (layer == 1)
        self->spf = 384;
      else if (layer == 2)
        self->spf = 1152;
      else if (layer == 3 && mpegaudioversion != -1)
        self->spf = (mpegaudioversion == 1 ? 1152 : 576);
    }
  }

  self->started = TRUE;
  self->input_caps_changed = TRUE;

  /* Start the srcpad loop again */
  self->flushing = FALSE;
  self->downstream_flow_ret = GST_FLOW_OK;
  gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self),
      (GstTaskFunction) gst_amc_audio_dec_loop, decoder, NULL);

  return TRUE;
}
예제 #5
0
static void
gst_amc_audio_dec_loop (GstAmcAudioDec * self)
{
  GstFlowReturn flow_ret = GST_FLOW_OK;
  gboolean is_eos;
  GstAmcBuffer *buf;
  GstAmcBufferInfo buffer_info;
  gint idx;
  GError *err = NULL;

  GST_AUDIO_DECODER_STREAM_LOCK (self);

retry:
  /*if (self->input_caps_changed) {
     idx = INFO_OUTPUT_FORMAT_CHANGED;
     } else { */
  GST_DEBUG_OBJECT (self, "Waiting for available output buffer");
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  /* Wait at most 100ms here, some codecs don't fail dequeueing if
   * the codec is flushing, causing deadlocks during shutdown */
  idx =
      gst_amc_codec_dequeue_output_buffer (self->codec, &buffer_info, 100000,
      &err);
  GST_AUDIO_DECODER_STREAM_LOCK (self);
  /*} */

  if (idx < 0) {
    if (self->flushing) {
      g_clear_error (&err);
      goto flushing;
    }

    switch (idx) {
      case INFO_OUTPUT_BUFFERS_CHANGED:
        /* Handled internally */
        g_assert_not_reached ();
        break;
      case INFO_OUTPUT_FORMAT_CHANGED:{
        GstAmcFormat *format;
        gchar *format_string;

        GST_DEBUG_OBJECT (self, "Output format has changed");

        format = gst_amc_codec_get_output_format (self->codec, &err);
        if (!format)
          goto format_error;

        format_string = gst_amc_format_to_string (format, &err);
        if (err) {
          gst_amc_format_free (format);
          goto format_error;
        }
        GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string);
        g_free (format_string);

        if (!gst_amc_audio_dec_set_src_caps (self, format)) {
          gst_amc_format_free (format);
          goto format_error;
        }
        gst_amc_format_free (format);

        goto retry;

      }
      case INFO_TRY_AGAIN_LATER:
        GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out");
        goto retry;

      case G_MININT:
        GST_ERROR_OBJECT (self, "Failure dequeueing output buffer");
        goto dequeue_error;

      default:
        g_assert_not_reached ();
        break;
    }

    goto retry;
  }

  GST_DEBUG_OBJECT (self,
      "Got output buffer at index %d: offset %d size %d time %" G_GINT64_FORMAT
      " flags 0x%08x", idx, buffer_info.offset, buffer_info.size,
      buffer_info.presentation_time_us, buffer_info.flags);

  is_eos = ! !(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM);

  buf = gst_amc_codec_get_output_buffer (self->codec, idx, &err);
  if (!buf)
    goto failed_to_get_output_buffer;

  if (buffer_info.size > 0) {
    GstBuffer *outbuf;
    GstMapInfo minfo;

    /* This sometimes happens at EOS or if the input is not properly framed,
     * let's handle it gracefully by allocating a new buffer for the current
     * caps and filling it
     */

    if (buffer_info.size % self->info.bpf != 0)
      goto invalid_buffer_size;

    outbuf =
        gst_audio_decoder_allocate_output_buffer (GST_AUDIO_DECODER (self),
        buffer_info.size);
    if (!outbuf)
      goto failed_allocate;

    gst_buffer_map (outbuf, &minfo, GST_MAP_WRITE);
    if (self->needs_reorder) {
      gint i, n_samples, c, n_channels;
      gint *reorder_map = self->reorder_map;
      gint16 *dest, *source;

      dest = (gint16 *) minfo.data;
      source = (gint16 *) (buf->data + buffer_info.offset);
      n_samples = buffer_info.size / self->info.bpf;
      n_channels = self->info.channels;

      for (i = 0; i < n_samples; i++) {
        for (c = 0; c < n_channels; c++) {
          dest[i * n_channels + reorder_map[c]] = source[i * n_channels + c];
        }
      }
    } else {
      orc_memcpy (minfo.data, buf->data + buffer_info.offset, buffer_info.size);
    }
    gst_buffer_unmap (outbuf, &minfo);

    if (self->spf != -1) {
      gst_adapter_push (self->output_adapter, outbuf);
    } else {
      flow_ret =
          gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf, 1);
    }
  }

  gst_amc_buffer_free (buf);
  buf = NULL;

  if (self->spf != -1) {
    GstBuffer *outbuf;
    guint avail = gst_adapter_available (self->output_adapter);
    guint nframes;

    /* On EOS we take the complete adapter content, no matter
     * if it is a multiple of the codec frame size or not.
     * Otherwise we take a multiple of codec frames and push
     * them downstream
     */
    avail /= self->info.bpf;
    if (!is_eos) {
      nframes = avail / self->spf;
      avail = nframes * self->spf;
    } else {
      nframes = (avail + self->spf - 1) / self->spf;
    }
    avail *= self->info.bpf;

    if (avail > 0) {
      outbuf = gst_adapter_take_buffer (self->output_adapter, avail);
      flow_ret =
          gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf,
          nframes);
    }
  }

  if (!gst_amc_codec_release_output_buffer (self->codec, idx, &err)) {
    if (self->flushing) {
      g_clear_error (&err);
      goto flushing;
    }
    goto failed_release;
  }

  if (is_eos || flow_ret == GST_FLOW_EOS) {
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    if (self->draining) {
      GST_DEBUG_OBJECT (self, "Drained");
      self->draining = FALSE;
      g_cond_broadcast (&self->drain_cond);
    } else if (flow_ret == GST_FLOW_OK) {
      GST_DEBUG_OBJECT (self, "Component signalled EOS");
      flow_ret = GST_FLOW_EOS;
    }
    g_mutex_unlock (&self->drain_lock);
    GST_AUDIO_DECODER_STREAM_LOCK (self);
  } else {
    GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret));
  }

  self->downstream_flow_ret = flow_ret;

  if (flow_ret != GST_FLOW_OK)
    goto flow_error;

  GST_AUDIO_DECODER_STREAM_UNLOCK (self);

  return;

dequeue_error:
  {
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }

format_error:
  {
    if (err)
      GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    else
      GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
          ("Failed to handle format"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }
failed_release:
  {
    GST_AUDIO_DECODER_ERROR_FROM_ERROR (self, err);
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }
flushing:
  {
    GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_FLUSHING;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

flow_error:
  {
    if (flow_ret == GST_FLOW_EOS) {
      GST_DEBUG_OBJECT (self, "EOS");
      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    } else if (flow_ret < GST_FLOW_EOS) {
      GST_ELEMENT_ERROR (self, STREAM, FAILED,
          ("Internal data stream error."), ("stream stopped, reason %s",
              gst_flow_get_name (flow_ret)));
      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    } else if (flow_ret == GST_FLOW_FLUSHING) {
      GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    }
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }

failed_to_get_output_buffer:
  {
    GST_AUDIO_DECODER_ERROR_FROM_ERROR (self, err);
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }
invalid_buffer_size:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Invalid buffer size %u (bfp %d)", buffer_info.size, self->info.bpf));
    gst_amc_codec_release_output_buffer (self->codec, idx, &err);
    if (err && !self->flushing)
      GST_ELEMENT_WARNING_FROM_ERROR (self, err);
    g_clear_error (&err);
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }

failed_allocate:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Failed to allocate output buffer"));
    gst_amc_codec_release_output_buffer (self->codec, idx, &err);
    if (err && !self->flushing)
      GST_ELEMENT_WARNING_FROM_ERROR (self, err);
    g_clear_error (&err);
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = FALSE;
    g_cond_broadcast (&self->drain_cond);
    g_mutex_unlock (&self->drain_lock);
    return;
  }
}
예제 #6
0
static GstFlowReturn
gst_amc_audio_dec_drain (GstAmcAudioDec * self)
{
  GstFlowReturn ret;
  gint idx;
  GError *err = NULL;

  GST_DEBUG_OBJECT (self, "Draining codec");
  if (!self->started) {
    GST_DEBUG_OBJECT (self, "Codec not started yet");
    return GST_FLOW_OK;
  }

  /* Don't send drain buffer twice, this doesn't work */
  if (self->drained) {
    GST_DEBUG_OBJECT (self, "Codec is drained already");
    return GST_FLOW_OK;
  }

  /* Make sure to release the base class stream lock, otherwise
   * _loop() can't call _finish_frame() and we might block forever
   * because no input buffers are released */
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  /* Send an EOS buffer to the component and let the base
   * class drop the EOS event. We will send it later when
   * the EOS buffer arrives on the output port.
   * Wait at most 0.5s here. */
  idx = gst_amc_codec_dequeue_input_buffer (self->codec, 500000, &err);
  GST_AUDIO_DECODER_STREAM_LOCK (self);

  if (idx >= 0) {
    GstAmcBuffer *buf;
    GstAmcBufferInfo buffer_info;

    buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err);
    if (buf) {
      GST_AUDIO_DECODER_STREAM_UNLOCK (self);
      g_mutex_lock (&self->drain_lock);
      self->draining = TRUE;

      memset (&buffer_info, 0, sizeof (buffer_info));
      buffer_info.size = 0;
      buffer_info.presentation_time_us =
          gst_util_uint64_scale (self->last_upstream_ts, 1, GST_USECOND);
      buffer_info.flags |= BUFFER_FLAG_END_OF_STREAM;

      gst_amc_buffer_set_position_and_limit (buf, NULL, 0, 0);
      gst_amc_buffer_free (buf);
      buf = NULL;

      if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info,
              &err)) {
        GST_DEBUG_OBJECT (self, "Waiting until codec is drained");
        g_cond_wait (&self->drain_cond, &self->drain_lock);
        GST_DEBUG_OBJECT (self, "Drained codec");
        ret = GST_FLOW_OK;
      } else {
        GST_ERROR_OBJECT (self, "Failed to queue input buffer");
        if (self->flushing) {
          g_clear_error (&err);
          ret = GST_FLOW_FLUSHING;
        } else {
          GST_ELEMENT_WARNING_FROM_ERROR (self, err);
          ret = GST_FLOW_ERROR;
        }
      }

      self->drained = TRUE;
      self->draining = FALSE;
      g_mutex_unlock (&self->drain_lock);
      GST_AUDIO_DECODER_STREAM_LOCK (self);
    } else {
      GST_ERROR_OBJECT (self, "Failed to get buffer for EOS: %d", idx);
      if (err)
        GST_ELEMENT_WARNING_FROM_ERROR (self, err);
      ret = GST_FLOW_ERROR;
    }
  } else {
    GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx);
    if (err)
      GST_ELEMENT_WARNING_FROM_ERROR (self, err);
    ret = GST_FLOW_ERROR;
  }

  gst_adapter_flush (self->output_adapter,
      gst_adapter_available (self->output_adapter));

  return ret;
}
예제 #7
0
static GstFlowReturn
gst_amc_audio_dec_handle_frame (GstAudioDecoder * decoder, GstBuffer * inbuf)
{
  GstAmcAudioDec *self;
  gint idx;
  GstAmcBuffer *buf;
  GstAmcBufferInfo buffer_info;
  guint offset = 0;
  GstClockTime timestamp, duration, timestamp_offset = 0;
  GstMapInfo minfo;
  GError *err = NULL;

  memset (&minfo, 0, sizeof (minfo));

  self = GST_AMC_AUDIO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Handling frame");

  /* Make sure to keep a reference to the input here,
   * it can be unreffed from the other thread if
   * finish_frame() is called */
  if (inbuf)
    inbuf = gst_buffer_ref (inbuf);

  if (!self->started) {
    GST_ERROR_OBJECT (self, "Codec not started yet");
    if (inbuf)
      gst_buffer_unref (inbuf);
    return GST_FLOW_NOT_NEGOTIATED;
  }

  if (self->flushing)
    goto flushing;

  if (self->downstream_flow_ret != GST_FLOW_OK)
    goto downstream_error;

  if (!inbuf)
    return gst_amc_audio_dec_drain (self);

  timestamp = GST_BUFFER_PTS (inbuf);
  duration = GST_BUFFER_DURATION (inbuf);

  gst_buffer_map (inbuf, &minfo, GST_MAP_READ);

  while (offset < minfo.size) {
    /* Make sure to release the base class stream lock, otherwise
     * _loop() can't call _finish_frame() and we might block forever
     * because no input buffers are released */
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    /* Wait at most 100ms here, some codecs don't fail dequeueing if
     * the codec is flushing, causing deadlocks during shutdown */
    idx = gst_amc_codec_dequeue_input_buffer (self->codec, 100000, &err);
    GST_AUDIO_DECODER_STREAM_LOCK (self);

    if (idx < 0) {
      if (self->flushing || self->downstream_flow_ret == GST_FLOW_FLUSHING) {
        g_clear_error (&err);
        goto flushing;
      }

      switch (idx) {
        case INFO_TRY_AGAIN_LATER:
          GST_DEBUG_OBJECT (self, "Dequeueing input buffer timed out");
          continue;             /* next try */
          break;
        case G_MININT:
          GST_ERROR_OBJECT (self, "Failed to dequeue input buffer");
          goto dequeue_error;
        default:
          g_assert_not_reached ();
          break;
      }

      continue;
    }

    if (self->flushing) {
      memset (&buffer_info, 0, sizeof (buffer_info));
      gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, NULL);
      goto flushing;
    }

    if (self->downstream_flow_ret != GST_FLOW_OK) {
      memset (&buffer_info, 0, sizeof (buffer_info));
      gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info, &err);
      if (err && !self->flushing)
        GST_ELEMENT_WARNING_FROM_ERROR (self, err);
      g_clear_error (&err);
      goto downstream_error;
    }

    /* Now handle the frame */

    /* Copy the buffer content in chunks of size as requested
     * by the port */
    buf = gst_amc_codec_get_input_buffer (self->codec, idx, &err);
    if (!buf)
      goto failed_to_get_input_buffer;

    memset (&buffer_info, 0, sizeof (buffer_info));
    buffer_info.offset = 0;
    buffer_info.size = MIN (minfo.size - offset, buf->size);
    gst_amc_buffer_set_position_and_limit (buf, NULL, buffer_info.offset,
        buffer_info.size);

    orc_memcpy (buf->data, minfo.data + offset, buffer_info.size);

    gst_amc_buffer_free (buf);
    buf = NULL;

    /* Interpolate timestamps if we're passing the buffer
     * in multiple chunks */
    if (offset != 0 && duration != GST_CLOCK_TIME_NONE) {
      timestamp_offset = gst_util_uint64_scale (offset, duration, minfo.size);
    }

    if (timestamp != GST_CLOCK_TIME_NONE) {
      buffer_info.presentation_time_us =
          gst_util_uint64_scale (timestamp + timestamp_offset, 1, GST_USECOND);
      self->last_upstream_ts = timestamp + timestamp_offset;
    }
    if (duration != GST_CLOCK_TIME_NONE)
      self->last_upstream_ts += duration;

    if (offset == 0) {
      if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DELTA_UNIT))
        buffer_info.flags |= BUFFER_FLAG_SYNC_FRAME;
    }

    offset += buffer_info.size;
    GST_DEBUG_OBJECT (self,
        "Queueing buffer %d: size %d time %" G_GINT64_FORMAT " flags 0x%08x",
        idx, buffer_info.size, buffer_info.presentation_time_us,
        buffer_info.flags);
    if (!gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info,
            &err)) {
      if (self->flushing) {
        g_clear_error (&err);
        goto flushing;
      }
      goto queue_error;
    }
    self->drained = FALSE;
  }
  gst_buffer_unmap (inbuf, &minfo);
  gst_buffer_unref (inbuf);

  return self->downstream_flow_ret;

downstream_error:
  {
    GST_ERROR_OBJECT (self, "Downstream returned %s",
        gst_flow_get_name (self->downstream_flow_ret));
    if (minfo.data)
      gst_buffer_unmap (inbuf, &minfo);
    if (inbuf)
      gst_buffer_unref (inbuf);
    return self->downstream_flow_ret;
  }
failed_to_get_input_buffer:
  {
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    if (minfo.data)
      gst_buffer_unmap (inbuf, &minfo);
    if (inbuf)
      gst_buffer_unref (inbuf);
    return GST_FLOW_ERROR;
  }
dequeue_error:
  {
    GST_ELEMENT_ERROR_FROM_ERROR (self, err);
    if (minfo.data)
      gst_buffer_unmap (inbuf, &minfo);
    if (inbuf)
      gst_buffer_unref (inbuf);
    return GST_FLOW_ERROR;
  }
queue_error:
  {
    GST_AUDIO_DECODER_ERROR_FROM_ERROR (self, err);
    if (minfo.data)
      gst_buffer_unmap (inbuf, &minfo);
    if (inbuf)
      gst_buffer_unref (inbuf);
    return GST_FLOW_ERROR;
  }
flushing:
  {
    GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING");
    if (minfo.data)
      gst_buffer_unmap (inbuf, &minfo);
    if (inbuf)
      gst_buffer_unref (inbuf);
    return GST_FLOW_FLUSHING;
  }
}
예제 #8
0
static void
gst_amc_audio_dec_loop (GstAmcAudioDec * self)
{
  GstFlowReturn flow_ret = GST_FLOW_OK;
  gboolean is_eos;
  GstAmcBufferInfo buffer_info;
  gint idx;

  GST_AUDIO_DECODER_STREAM_LOCK (self);

retry:
  /*if (self->input_caps_changed) {
     idx = INFO_OUTPUT_FORMAT_CHANGED;
     } else { */
  GST_DEBUG_OBJECT (self, "Waiting for available output buffer");
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  /* Wait at most 100ms here, some codecs don't fail dequeueing if
   * the codec is flushing, causing deadlocks during shutdown */
  idx = gst_amc_codec_dequeue_output_buffer (self->codec, &buffer_info, 100000);
  GST_AUDIO_DECODER_STREAM_LOCK (self);
  /*} */

  if (idx < 0) {
    if (self->flushing)
      goto flushing;

    switch (idx) {
      case INFO_OUTPUT_BUFFERS_CHANGED:{
        GST_DEBUG_OBJECT (self, "Output buffers have changed");
        if (self->output_buffers)
          gst_amc_codec_free_buffers (self->output_buffers,
              self->n_output_buffers);
        self->output_buffers =
            gst_amc_codec_get_output_buffers (self->codec,
            &self->n_output_buffers);
        if (!self->output_buffers)
          goto get_output_buffers_error;
        break;
      }
      case INFO_OUTPUT_FORMAT_CHANGED:{
        GstAmcFormat *format;
        gchar *format_string;

        GST_DEBUG_OBJECT (self, "Output format has changed");

        format = gst_amc_codec_get_output_format (self->codec);
        if (!format)
          goto format_error;

        format_string = gst_amc_format_to_string (format);
        GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string);
        g_free (format_string);

        if (!gst_amc_audio_dec_set_src_caps (self, format)) {
          gst_amc_format_free (format);
          goto format_error;
        }
        gst_amc_format_free (format);

        if (self->output_buffers)
          gst_amc_codec_free_buffers (self->output_buffers,
              self->n_output_buffers);
        self->output_buffers =
            gst_amc_codec_get_output_buffers (self->codec,
            &self->n_output_buffers);
        if (!self->output_buffers)
          goto get_output_buffers_error;

        goto retry;
        break;
      }
      case INFO_TRY_AGAIN_LATER:
        GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out");
        goto retry;
        break;
      case G_MININT:
        GST_ERROR_OBJECT (self, "Failure dequeueing output buffer");
        goto dequeue_error;
        break;
      default:
        g_assert_not_reached ();
        break;
    }

    goto retry;
  }

  GST_DEBUG_OBJECT (self,
      "Got output buffer at index %d: size %d time %" G_GINT64_FORMAT
      " flags 0x%08x", idx, buffer_info.size, buffer_info.presentation_time_us,
      buffer_info.flags);

  is_eos = ! !(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM);
  self->n_buffers++;

  if (buffer_info.size > 0) {
    GstAmcAudioDecClass *klass = GST_AMC_AUDIO_DEC_GET_CLASS (self);
    GstBuffer *outbuf;
    GstAmcBuffer *buf;
    GstMapInfo minfo;

    /* This sometimes happens at EOS or if the input is not properly framed,
     * let's handle it gracefully by allocating a new buffer for the current
     * caps and filling it
     */
    if (idx >= self->n_output_buffers)
      goto invalid_buffer_index;

    if (strcmp (klass->codec_info->name, "OMX.google.mp3.decoder") == 0) {
      /* Google's MP3 decoder outputs garbage in the first output buffer
       * so we just drop it here */
      if (self->n_buffers == 1) {
        GST_DEBUG_OBJECT (self,
            "Skipping first buffer of Google MP3 decoder output");
        goto done;
      }
    }

    outbuf =
        gst_audio_decoder_allocate_output_buffer (GST_AUDIO_DECODER (self),
        buffer_info.size);
    if (!outbuf)
      goto failed_allocate;

    gst_buffer_map (outbuf, &minfo, GST_MAP_WRITE);
    buf = &self->output_buffers[idx];
    if (self->needs_reorder) {
      gint i, n_samples, c, n_channels;
      gint *reorder_map = self->reorder_map;
      gint16 *dest, *source;

      dest = (gint16 *) minfo.data;
      source = (gint16 *) (buf->data + buffer_info.offset);
      n_samples = buffer_info.size / self->info.bpf;
      n_channels = self->info.channels;

      for (i = 0; i < n_samples; i++) {
        for (c = 0; c < n_channels; c++) {
          dest[i * n_channels + reorder_map[c]] = source[i * n_channels + c];
        }
      }
    } else {
      orc_memcpy (minfo.data, buf->data + buffer_info.offset, buffer_info.size);
    }
    gst_buffer_unmap (outbuf, &minfo);

    /* FIXME: We should get one decoded input frame here for
     * every buffer. If this is not the case somewhere, we will
     * error out at some point and will need to add workarounds
     */
    flow_ret =
        gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf, 1);
  }

done:
  if (!gst_amc_codec_release_output_buffer (self->codec, idx))
    goto failed_release;

  if (is_eos || flow_ret == GST_FLOW_EOS) {
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    if (self->draining) {
      GST_DEBUG_OBJECT (self, "Drained");
      self->draining = FALSE;
      g_cond_broadcast (&self->drain_cond);
    } else if (flow_ret == GST_FLOW_OK) {
      GST_DEBUG_OBJECT (self, "Component signalled EOS");
      flow_ret = GST_FLOW_EOS;
    }
    g_mutex_unlock (&self->drain_lock);
    GST_AUDIO_DECODER_STREAM_LOCK (self);
  } else {
    GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret));
  }

  self->downstream_flow_ret = flow_ret;

  if (flow_ret != GST_FLOW_OK)
    goto flow_error;

  GST_AUDIO_DECODER_STREAM_UNLOCK (self);

  return;

dequeue_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Failed to dequeue output buffer"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

get_output_buffers_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Failed to get output buffers"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

format_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Failed to handle format"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }
failed_release:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Failed to release output buffer index %d", idx));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }
flushing:
  {
    GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_FLUSHING;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

flow_error:
  {
    if (flow_ret == GST_FLOW_EOS) {
      GST_DEBUG_OBJECT (self, "EOS");
      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    } else if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_EOS) {
      GST_ELEMENT_ERROR (self, STREAM, FAILED,
          ("Internal data stream error."), ("stream stopped, reason %s",
              gst_flow_get_name (flow_ret)));
      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    }
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

invalid_buffer_index:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Invalid input buffer index %d of %d", idx, self->n_input_buffers));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

failed_allocate:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Failed to allocate output buffer"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }
}
예제 #9
0
static GstFlowReturn
gst_amc_audio_dec_drain (GstAmcAudioDec * self)
{
  GstFlowReturn ret;
  gint idx;

  GST_DEBUG_OBJECT (self, "Draining codec");
  if (!self->started) {
    GST_DEBUG_OBJECT (self, "Codec not started yet");
    return GST_FLOW_OK;
  }

  /* Don't send EOS buffer twice, this doesn't work */
  if (self->eos) {
    GST_DEBUG_OBJECT (self, "Codec is EOS already");
    return GST_FLOW_OK;
  }

  /* Make sure to release the base class stream lock, otherwise
   * _loop() can't call _finish_frame() and we might block forever
   * because no input buffers are released */
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);
  /* Send an EOS buffer to the component and let the base
   * class drop the EOS event. We will send it later when
   * the EOS buffer arrives on the output port.
   * Wait at most 0.5s here. */
  idx = gst_amc_codec_dequeue_input_buffer (self->codec, 500000);
  GST_AUDIO_DECODER_STREAM_LOCK (self);

  if (idx >= 0 && idx < self->n_input_buffers) {
    GstAmcBufferInfo buffer_info;

    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    g_mutex_lock (&self->drain_lock);
    self->draining = TRUE;

    memset (&buffer_info, 0, sizeof (buffer_info));
    buffer_info.size = 0;
    buffer_info.presentation_time_us =
        gst_util_uint64_scale (self->last_upstream_ts, 1, GST_USECOND);
    buffer_info.flags |= BUFFER_FLAG_END_OF_STREAM;

    if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info)) {
      GST_DEBUG_OBJECT (self, "Waiting until codec is drained");
      g_cond_wait (&self->drain_cond, &self->drain_lock);
      GST_DEBUG_OBJECT (self, "Drained codec");
      ret = GST_FLOW_OK;
    } else {
      GST_ERROR_OBJECT (self, "Failed to queue input buffer");
      ret = GST_FLOW_ERROR;
    }

    g_mutex_unlock (&self->drain_lock);
    GST_AUDIO_DECODER_STREAM_LOCK (self);
  } else if (idx >= self->n_input_buffers) {
    GST_ERROR_OBJECT (self, "Invalid input buffer index %d of %d",
        idx, self->n_input_buffers);
    ret = GST_FLOW_ERROR;
  } else {
    GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx);
    ret = GST_FLOW_ERROR;
  }

  return ret;
}
예제 #10
0
static GstFlowReturn
gst_droidadec_handle_frame (GstAudioDecoder * decoder, GstBuffer * buffer)
{
  GstDroidADec *dec = GST_DROIDADEC (decoder);
  GstFlowReturn ret;
  DroidMediaCodecData data;
  DroidMediaBufferCallbacks cb;

  GST_DEBUG_OBJECT (dec, "handle frame");

  if (G_UNLIKELY (!buffer)) {
    return gst_droidadec_finish (decoder);
  }

  if (dec->downstream_flow_ret != GST_FLOW_OK) {
    GST_DEBUG_OBJECT (dec, "not handling frame in error state: %s",
        gst_flow_get_name (dec->downstream_flow_ret));
    ret = dec->downstream_flow_ret;
    goto error;
  }

  g_mutex_lock (&dec->eos_lock);
  if (dec->eos) {
    GST_WARNING_OBJECT (dec, "got frame in eos state");
    g_mutex_unlock (&dec->eos_lock);
    ret = GST_FLOW_EOS;
    goto error;
  }
  g_mutex_unlock (&dec->eos_lock);

  /* We must create the codec before we process any data. _create_codec will call
   * construct_decoder_codec_data which will store the nal prefix length for H264.
   * This is a bad situation. TODO: fix it
   */
  if (G_UNLIKELY (dec->dirty)) {
    if (dec->codec) {
      gst_droidadec_finish (decoder);
    }

    if (!gst_droidadec_create_codec (dec, buffer)) {
      ret = GST_FLOW_ERROR;
      goto error;
    }

    dec->dirty = FALSE;
  }

  if (!gst_droid_codec_process_decoder_data (dec->codec_type, buffer,
          &data.data)) {
    /* TODO: error */
    ret = GST_FLOW_ERROR;
    goto error;
  }

  cb.unref = g_free;
  cb.data = data.data.data;

  GST_DEBUG_OBJECT (dec, "decoding data of size %d (%d)",
      gst_buffer_get_size (buffer), data.data.size);

  /*
   * We are ignoring timestamping completely and relying
   * on the base class to do our bookkeeping ;-)
   */
  data.ts = 0;
  data.sync = false;

  /* This can deadlock if droidmedia/stagefright input buffer queue is full thus we
   * cannot write the input buffer. We end up waiting for the write operation
   * which does not happen because stagefright needs us to provide
   * output buffers to be filled (which can not happen because _loop() tries
   * to call get_oldest_frame() which acquires the stream lock the base class
   * is holding before calling us
   */
  GST_AUDIO_DECODER_STREAM_UNLOCK (decoder);
  droid_media_codec_queue (dec->codec, &data, &cb);
  GST_AUDIO_DECODER_STREAM_LOCK (decoder);

  /* from now on decoder owns a frame reference so we cannot use the out label otherwise
   * we will drop the needed reference
   */

  if (dec->downstream_flow_ret != GST_FLOW_OK) {
    GST_DEBUG_OBJECT (dec, "not handling frame in error state: %s",
        gst_flow_get_name (dec->downstream_flow_ret));
    ret = dec->downstream_flow_ret;
    goto out;
  }

  g_mutex_lock (&dec->eos_lock);
  if (dec->eos) {
    GST_WARNING_OBJECT (dec, "got frame in eos state");
    g_mutex_unlock (&dec->eos_lock);
    ret = GST_FLOW_EOS;
    goto out;
  }
  g_mutex_unlock (&dec->eos_lock);

  ret = GST_FLOW_OK;

out:
  return ret;

error:
  /* don't leak the frame */
  gst_audio_decoder_finish_frame (decoder, NULL, 1);

  return ret;
}
예제 #11
0
/* always call with stream lock */
static GstFlowReturn
gst_droidadec_finish (GstAudioDecoder * decoder)
{
  GstDroidADec *dec = GST_DROIDADEC (decoder);
  gint available;

  GST_DEBUG_OBJECT (dec, "finish");

  if (!dec->running) {
    GST_DEBUG_OBJECT (dec, "decoder is not running");
    goto finish;
  }

  g_mutex_lock (&dec->eos_lock);
  dec->eos = TRUE;

  if (dec->codec) {
    droid_media_codec_drain (dec->codec);
  } else {
    goto out;
  }

  /* release the lock to allow _data_available () to do its job */
  GST_AUDIO_DECODER_STREAM_UNLOCK (decoder);
  /* Now we wait for the codec to signal EOS */
  g_cond_wait (&dec->eos_cond, &dec->eos_lock);
  GST_AUDIO_DECODER_STREAM_LOCK (decoder);

finish:
  /* We drained the codec. Better to recreate it. */
  if (dec->codec) {
    droid_media_codec_stop (dec->codec);
    droid_media_codec_destroy (dec->codec);
    dec->codec = NULL;
  }

  if (dec->spf != -1) {
    available = gst_adapter_available (dec->adapter);
    if (available > 0) {
      gint size = dec->spf * dec->info->bpf;
      gint nframes = available / size;
      GstBuffer *out;
      GstFlowReturn ret G_GNUC_UNUSED;

      GST_INFO_OBJECT (dec, "pushing remaining %d bytes", available);
      if (nframes > 0) {
        out = gst_adapter_take_buffer (dec->adapter, nframes * size);
        available -= (nframes * size);
      } else {
        out = gst_adapter_take_buffer (dec->adapter, available);
        nframes = 1;
        available = 0;
      }

      ret = gst_audio_decoder_finish_frame (decoder, out, nframes);


      GST_INFO_OBJECT (dec, "pushed %d frames. flow return: %s", nframes,
          gst_flow_get_name (ret));

      if (available > 0) {
        GST_ERROR_OBJECT (dec, "%d bytes remaining", available);
      }
    }
  }

  dec->dirty = TRUE;

out:
  dec->eos = FALSE;

  g_mutex_unlock (&dec->eos_lock);

  return GST_FLOW_OK;
}
예제 #12
0
static void
gst_droidadec_data_available (void *data, DroidMediaCodecData * encoded)
{
  GstFlowReturn flow_ret;
  GstDroidADec *dec = (GstDroidADec *) data;
  GstAudioDecoder *decoder = GST_AUDIO_DECODER (dec);
  GstBuffer *out;
  GstMapInfo info;

  GST_DEBUG_OBJECT (dec, "data available of size %d", encoded->data.size);

  GST_AUDIO_DECODER_STREAM_LOCK (decoder);

  if (G_UNLIKELY (dec->downstream_flow_ret != GST_FLOW_OK)) {
    GST_DEBUG_OBJECT (dec, "not handling data in error state: %s",
        gst_flow_get_name (dec->downstream_flow_ret));
    flow_ret = dec->downstream_flow_ret;
    gst_audio_decoder_finish_frame (decoder, NULL, 1);
    goto out;
  }

  if (G_UNLIKELY (gst_audio_decoder_get_audio_info (GST_AUDIO_DECODER
              (dec))->finfo->format == GST_AUDIO_FORMAT_UNKNOWN)) {
    DroidMediaCodecMetaData md;
    DroidMediaRect crop;        /* TODO: get rid of that */
    GstAudioInfo info;

    memset (&md, 0x0, sizeof (md));
    droid_media_codec_get_output_info (dec->codec, &md, &crop);
    GST_INFO_OBJECT (dec, "output rate=%d, output channels=%d", md.sample_rate,
        md.channels);

    gst_audio_info_init (&info);
    gst_audio_info_set_format (&info, GST_AUDIO_FORMAT_S16, md.sample_rate,
        md.channels, NULL);

    if (!gst_audio_decoder_set_output_format (decoder, &info)) {
      flow_ret = GST_FLOW_ERROR;
      goto out;
    }

    dec->info = gst_audio_decoder_get_audio_info (GST_AUDIO_DECODER (dec));
  }

  out = gst_audio_decoder_allocate_output_buffer (decoder, encoded->data.size);

  gst_buffer_map (out, &info, GST_MAP_READWRITE);
  orc_memcpy (info.data, encoded->data.data, encoded->data.size);
  gst_buffer_unmap (out, &info);

  //  GST_WARNING_OBJECT (dec, "bpf %d, bps %d", dec->info->bpf, GST_AUDIO_INFO_BPS(dec->info));
  if (dec->spf == -1 || (encoded->data.size == dec->spf * dec->info->bpf
          && gst_adapter_available (dec->adapter) == 0)) {
    /* fast path. no need for anything */
    goto push;
  }

  gst_adapter_push (dec->adapter, out);

  if (gst_adapter_available (dec->adapter) >= dec->spf * dec->info->bpf) {
    out = gst_adapter_take_buffer (dec->adapter, dec->spf * dec->info->bpf);
  } else {
    flow_ret = GST_FLOW_OK;
    goto out;
  }

push:
  GST_DEBUG_OBJECT (dec, "pushing %d bytes out", gst_buffer_get_size (out));

  flow_ret = gst_audio_decoder_finish_frame (decoder, out, 1);

  if (flow_ret == GST_FLOW_OK || flow_ret == GST_FLOW_FLUSHING) {
    goto out;
  } else if (flow_ret == GST_FLOW_EOS) {
    GST_INFO_OBJECT (dec, "eos");
  } else if (flow_ret < GST_FLOW_OK) {
    GST_ELEMENT_ERROR (dec, STREAM, FAILED,
        ("Internal data stream error."), ("stream stopped, reason %s",
            gst_flow_get_name (flow_ret)));
  }

out:
  dec->downstream_flow_ret = flow_ret;
  GST_AUDIO_DECODER_STREAM_UNLOCK (decoder);
}
static GstFlowReturn
gst_omx_audio_dec_handle_frame (GstAudioDecoder * decoder, GstBuffer * inbuf)
{
  GstOMXAcquireBufferReturn acq_ret = GST_OMX_ACQUIRE_BUFFER_ERROR;
  GstOMXAudioDec *self;
  GstOMXPort *port;
  GstOMXBuffer *buf;
  GstBuffer *codec_data = NULL;
  guint offset = 0;
  GstClockTime timestamp, duration;
  OMX_ERRORTYPE err;
  GstMapInfo minfo;

  self = GST_OMX_AUDIO_DEC (decoder);

  GST_DEBUG_OBJECT (self, "Handling frame");

  if (self->downstream_flow_ret != GST_FLOW_OK) {
    return self->downstream_flow_ret;
  }

  if (!self->started) {
    GST_DEBUG_OBJECT (self, "Starting task");
    gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self),
        (GstTaskFunction) gst_omx_audio_dec_loop, decoder, NULL);
  }

  if (inbuf == NULL)
    return gst_omx_audio_dec_drain (self);

  /* Make sure to keep a reference to the input here,
   * it can be unreffed from the other thread if
   * finish_frame() is called */
  gst_buffer_ref (inbuf);

  timestamp = GST_BUFFER_TIMESTAMP (inbuf);
  duration = GST_BUFFER_DURATION (inbuf);

  port = self->dec_in_port;

  gst_buffer_map (inbuf, &minfo, GST_MAP_READ);

  while (offset < minfo.size) {
    /* Make sure to release the base class stream lock, otherwise
     * _loop() can't call _finish_frame() and we might block forever
     * because no input buffers are released */
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    acq_ret = gst_omx_port_acquire_buffer (port, &buf);

    if (acq_ret == GST_OMX_ACQUIRE_BUFFER_ERROR) {
      GST_AUDIO_DECODER_STREAM_LOCK (self);
      goto component_error;
    } else if (acq_ret == GST_OMX_ACQUIRE_BUFFER_FLUSHING) {
      GST_AUDIO_DECODER_STREAM_LOCK (self);
      goto flushing;
    } else if (acq_ret == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) {
      /* Reallocate all buffers */
      err = gst_omx_port_set_enabled (port, FALSE);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_wait_buffers_released (port, 5 * GST_SECOND);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_deallocate_buffers (port);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_wait_enabled (port, 1 * GST_SECOND);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_set_enabled (port, TRUE);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_allocate_buffers (port);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_wait_enabled (port, 5 * GST_SECOND);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      err = gst_omx_port_mark_reconfigured (port);
      if (err != OMX_ErrorNone) {
        GST_AUDIO_DECODER_STREAM_LOCK (self);
        goto reconfigure_error;
      }

      /* Now get a new buffer and fill it */
      GST_AUDIO_DECODER_STREAM_LOCK (self);
      continue;
    }
    GST_AUDIO_DECODER_STREAM_LOCK (self);

    g_assert (acq_ret == GST_OMX_ACQUIRE_BUFFER_OK && buf != NULL);

    if (buf->omx_buf->nAllocLen - buf->omx_buf->nOffset <= 0) {
      gst_omx_port_release_buffer (port, buf);
      goto full_buffer;
    }

    if (self->downstream_flow_ret != GST_FLOW_OK) {
      gst_omx_port_release_buffer (port, buf);
      goto flow_error;
    }

    if (self->codec_data) {
      GST_DEBUG_OBJECT (self, "Passing codec data to the component");

      codec_data = self->codec_data;

      if (buf->omx_buf->nAllocLen - buf->omx_buf->nOffset <
          gst_buffer_get_size (codec_data)) {
        gst_omx_port_release_buffer (port, buf);
        goto too_large_codec_data;
      }

      buf->omx_buf->nFlags |= OMX_BUFFERFLAG_CODECCONFIG;
      buf->omx_buf->nFlags |= OMX_BUFFERFLAG_ENDOFFRAME;
      buf->omx_buf->nFilledLen = gst_buffer_get_size (codec_data);
      gst_buffer_extract (codec_data, 0,
          buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
          buf->omx_buf->nFilledLen);

      if (GST_CLOCK_TIME_IS_VALID (timestamp))
        buf->omx_buf->nTimeStamp =
            gst_util_uint64_scale (timestamp, OMX_TICKS_PER_SECOND, GST_SECOND);
      else
        buf->omx_buf->nTimeStamp = 0;
      buf->omx_buf->nTickCount = 0;

      self->started = TRUE;
      err = gst_omx_port_release_buffer (port, buf);
      gst_buffer_replace (&self->codec_data, NULL);
      if (err != OMX_ErrorNone)
        goto release_error;
      /* Acquire new buffer for the actual frame */
      continue;
    }

    /* Now handle the frame */
    GST_DEBUG_OBJECT (self, "Passing frame offset %d to the component", offset);

    /* Copy the buffer content in chunks of size as requested
     * by the port */
    buf->omx_buf->nFilledLen =
        MIN (minfo.size - offset,
        buf->omx_buf->nAllocLen - buf->omx_buf->nOffset);
    gst_buffer_extract (inbuf, offset,
        buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
        buf->omx_buf->nFilledLen);

    if (timestamp != GST_CLOCK_TIME_NONE) {
      buf->omx_buf->nTimeStamp =
          gst_util_uint64_scale (timestamp, OMX_TICKS_PER_SECOND, GST_SECOND);
      self->last_upstream_ts = timestamp;
    } else {
      buf->omx_buf->nTimeStamp = 0;
    }

    if (duration != GST_CLOCK_TIME_NONE && offset == 0) {
      buf->omx_buf->nTickCount =
          gst_util_uint64_scale (duration, OMX_TICKS_PER_SECOND, GST_SECOND);
      self->last_upstream_ts += duration;
    } else {
      buf->omx_buf->nTickCount = 0;
    }

    if (offset == 0)
      buf->omx_buf->nFlags |= OMX_BUFFERFLAG_SYNCFRAME;

    /* TODO: Set flags
     *   - OMX_BUFFERFLAG_DECODEONLY for buffers that are outside
     *     the segment
     */

    offset += buf->omx_buf->nFilledLen;

    if (offset == minfo.size)
      buf->omx_buf->nFlags |= OMX_BUFFERFLAG_ENDOFFRAME;

    self->started = TRUE;
    err = gst_omx_port_release_buffer (port, buf);
    if (err != OMX_ErrorNone)
      goto release_error;
  }
  gst_buffer_unmap (inbuf, &minfo);
  gst_buffer_unref (inbuf);

  GST_DEBUG_OBJECT (self, "Passed frame to component");

  return self->downstream_flow_ret;

full_buffer:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("Got OpenMAX buffer with no free space (%p, %u/%u)", buf,
            (guint) buf->omx_buf->nOffset, (guint) buf->omx_buf->nAllocLen));
    return GST_FLOW_ERROR;
  }

flow_error:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    return self->downstream_flow_ret;
  }

too_large_codec_data:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_ELEMENT_ERROR (self, STREAM, FORMAT, (NULL),
        ("codec_data larger than supported by OpenMAX port "
            "(%" G_GSIZE_FORMAT " > %u)", gst_buffer_get_size (codec_data),
            (guint) self->dec_in_port->port_def.nBufferSize));
    return GST_FLOW_ERROR;
  }

component_error:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("OpenMAX component in error state %s (0x%08x)",
            gst_omx_component_get_last_error_string (self->dec),
            gst_omx_component_get_last_error (self->dec)));
    return GST_FLOW_ERROR;
  }

flushing:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING");
    return GST_FLOW_FLUSHING;
  }
reconfigure_error:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Unable to reconfigure input port"));
    return GST_FLOW_ERROR;
  }
release_error:
  {
    gst_buffer_unmap (inbuf, &minfo);
    gst_buffer_unref (inbuf);

    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Failed to relase input buffer to component: %s (0x%08x)",
            gst_omx_error_to_string (err), err));

    return GST_FLOW_ERROR;
  }
}
static gboolean
gst_omx_audio_dec_set_format (GstAudioDecoder * decoder, GstCaps * caps)
{
  GstOMXAudioDec *self;
  GstOMXAudioDecClass *klass;
  GstStructure *s;
  const GValue *codec_data;
  gboolean is_format_change = FALSE;
  gboolean needs_disable = FALSE;

  self = GST_OMX_AUDIO_DEC (decoder);
  klass = GST_OMX_AUDIO_DEC_GET_CLASS (decoder);

  GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, caps);

  /* Check if the caps change is a real format change or if only irrelevant
   * parts of the caps have changed or nothing at all.
   */
  if (klass->is_format_change)
    is_format_change = klass->is_format_change (self, self->dec_in_port, caps);

  needs_disable =
      gst_omx_component_get_state (self->dec,
      GST_CLOCK_TIME_NONE) != OMX_StateLoaded;
  /* If the component is not in Loaded state and a real format change happens
   * we have to disable the port and re-allocate all buffers. If no real
   * format change happened we can just exit here.
   */
  if (needs_disable && !is_format_change) {
    GST_DEBUG_OBJECT (self,
        "Already running and caps did not change the format");
    return TRUE;
  }

  if (needs_disable && is_format_change) {
    GstOMXPort *out_port = self->dec_out_port;

    GST_DEBUG_OBJECT (self, "Need to disable and drain decoder");

    gst_omx_audio_dec_drain (self);
    gst_omx_audio_dec_flush (decoder, FALSE);
    gst_omx_port_set_flushing (out_port, 5 * GST_SECOND, TRUE);

    if (klass->cdata.hacks & GST_OMX_HACK_NO_COMPONENT_RECONFIGURE) {
      GST_AUDIO_DECODER_STREAM_UNLOCK (self);
      gst_omx_audio_dec_stop (GST_AUDIO_DECODER (self));
      gst_omx_audio_dec_close (GST_AUDIO_DECODER (self));
      GST_AUDIO_DECODER_STREAM_LOCK (self);

      if (!gst_omx_audio_dec_open (GST_AUDIO_DECODER (self)))
        return FALSE;
      needs_disable = FALSE;
    } else {
      if (gst_omx_port_set_enabled (self->dec_in_port, FALSE) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_set_enabled (out_port, FALSE) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_wait_buffers_released (self->dec_in_port,
              5 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_wait_buffers_released (out_port,
              1 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_deallocate_buffers (self->dec_in_port) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_deallocate_buffers (self->dec_out_port) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_wait_enabled (self->dec_in_port,
              1 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_wait_enabled (out_port, 1 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;
    }

    GST_DEBUG_OBJECT (self, "Decoder drained and disabled");
  }

  if (klass->set_format) {
    if (!klass->set_format (self, self->dec_in_port, caps)) {
      GST_ERROR_OBJECT (self, "Subclass failed to set the new format");
      return FALSE;
    }
  }

  GST_DEBUG_OBJECT (self, "Updating outport port definition");
  if (gst_omx_port_update_port_definition (self->dec_out_port,
          NULL) != OMX_ErrorNone)
    return FALSE;

  /* Get codec data from caps */
  gst_buffer_replace (&self->codec_data, NULL);
  s = gst_caps_get_structure (caps, 0);
  codec_data = gst_structure_get_value (s, "codec_data");
  if (codec_data) {
    /* Vorbis and some other codecs have multiple buffers in
     * the stream-header field */
    self->codec_data = gst_value_get_buffer (codec_data);
    if (self->codec_data)
      gst_buffer_ref (self->codec_data);
  }

  GST_DEBUG_OBJECT (self, "Enabling component");

  if (needs_disable) {
    if (gst_omx_port_set_enabled (self->dec_in_port, TRUE) != OMX_ErrorNone)
      return FALSE;
    if (gst_omx_port_allocate_buffers (self->dec_in_port) != OMX_ErrorNone)
      return FALSE;

    if ((klass->cdata.hacks & GST_OMX_HACK_NO_DISABLE_OUTPORT)) {
      if (gst_omx_port_set_enabled (self->dec_out_port, TRUE) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_allocate_buffers (self->dec_out_port) != OMX_ErrorNone)
        return FALSE;

      if (gst_omx_port_wait_enabled (self->dec_out_port,
              5 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;
    }

    if (gst_omx_port_wait_enabled (self->dec_in_port,
            5 * GST_SECOND) != OMX_ErrorNone)
      return FALSE;
    if (gst_omx_port_mark_reconfigured (self->dec_in_port) != OMX_ErrorNone)
      return FALSE;
  } else {
    if (!(klass->cdata.hacks & GST_OMX_HACK_NO_DISABLE_OUTPORT)) {
      /* Disable output port */
      if (gst_omx_port_set_enabled (self->dec_out_port, FALSE) != OMX_ErrorNone)
        return FALSE;

      if (gst_omx_port_wait_enabled (self->dec_out_port,
              1 * GST_SECOND) != OMX_ErrorNone)
        return FALSE;

      if (gst_omx_component_set_state (self->dec,
              OMX_StateIdle) != OMX_ErrorNone)
        return FALSE;

      /* Need to allocate buffers to reach Idle state */
      if (gst_omx_port_allocate_buffers (self->dec_in_port) != OMX_ErrorNone)
        return FALSE;
    } else {
      if (gst_omx_component_set_state (self->dec,
              OMX_StateIdle) != OMX_ErrorNone)
        return FALSE;

      /* Need to allocate buffers to reach Idle state */
      if (gst_omx_port_allocate_buffers (self->dec_in_port) != OMX_ErrorNone)
        return FALSE;
      if (gst_omx_port_allocate_buffers (self->dec_out_port) != OMX_ErrorNone)
        return FALSE;
    }

    if (gst_omx_component_get_state (self->dec,
            GST_CLOCK_TIME_NONE) != OMX_StateIdle)
      return FALSE;

    if (gst_omx_component_set_state (self->dec,
            OMX_StateExecuting) != OMX_ErrorNone)
      return FALSE;

    if (gst_omx_component_get_state (self->dec,
            GST_CLOCK_TIME_NONE) != OMX_StateExecuting)
      return FALSE;
  }

  /* Unset flushing to allow ports to accept data again */
  gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, FALSE);
  gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, FALSE);

  if (gst_omx_component_get_last_error (self->dec) != OMX_ErrorNone) {
    GST_ERROR_OBJECT (self, "Component in error state: %s (0x%08x)",
        gst_omx_component_get_last_error_string (self->dec),
        gst_omx_component_get_last_error (self->dec));
    return FALSE;
  }

  self->downstream_flow_ret = GST_FLOW_OK;

  return TRUE;
}
static void
gst_omx_audio_dec_loop (GstOMXAudioDec * self)
{
  GstOMXPort *port = self->dec_out_port;
  GstOMXBuffer *buf = NULL;
  GstFlowReturn flow_ret = GST_FLOW_OK;
  GstOMXAcquireBufferReturn acq_return;
  OMX_ERRORTYPE err;

  acq_return = gst_omx_port_acquire_buffer (port, &buf);
  if (acq_return == GST_OMX_ACQUIRE_BUFFER_ERROR) {
    goto component_error;
  } else if (acq_return == GST_OMX_ACQUIRE_BUFFER_FLUSHING) {
    goto flushing;
  } else if (acq_return == GST_OMX_ACQUIRE_BUFFER_EOS) {
    goto eos;
  }

  if (!gst_pad_has_current_caps (GST_AUDIO_DECODER_SRC_PAD (self)) ||
      acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) {
    OMX_PARAM_PORTDEFINITIONTYPE port_def;
    OMX_AUDIO_PARAM_PCMMODETYPE pcm_param;
    GstAudioChannelPosition omx_position[OMX_AUDIO_MAXCHANNELS];
    GstOMXAudioDecClass *klass = GST_OMX_AUDIO_DEC_GET_CLASS (self);
    gint i;

    GST_DEBUG_OBJECT (self, "Port settings have changed, updating caps");

    /* Reallocate all buffers */
    if (acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE
        && gst_omx_port_is_enabled (port)) {
      err = gst_omx_port_set_enabled (port, FALSE);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_wait_buffers_released (port, 5 * GST_SECOND);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_deallocate_buffers (port);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_wait_enabled (port, 1 * GST_SECOND);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;
    }

    /* Just update caps */
    GST_AUDIO_DECODER_STREAM_LOCK (self);

    gst_omx_port_get_port_definition (port, &port_def);
    g_assert (port_def.format.audio.eEncoding == OMX_AUDIO_CodingPCM);

    GST_OMX_INIT_STRUCT (&pcm_param);
    pcm_param.nPortIndex = self->dec_out_port->index;
    err =
        gst_omx_component_get_parameter (self->dec, OMX_IndexParamAudioPcm,
        &pcm_param);
    if (err != OMX_ErrorNone) {
      GST_ERROR_OBJECT (self, "Failed to get PCM parameters: %s (0x%08x)",
          gst_omx_error_to_string (err), err);
      goto caps_failed;
    }

    g_assert (pcm_param.ePCMMode == OMX_AUDIO_PCMModeLinear);
    g_assert (pcm_param.bInterleaved == OMX_TRUE);

    gst_audio_info_init (&self->info);

    for (i = 0; i < pcm_param.nChannels; i++) {
      switch (pcm_param.eChannelMapping[i]) {
        case OMX_AUDIO_ChannelLF:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
          break;
        case OMX_AUDIO_ChannelRF:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
          break;
        case OMX_AUDIO_ChannelCF:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
          break;
        case OMX_AUDIO_ChannelLS:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
          break;
        case OMX_AUDIO_ChannelRS:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
          break;
        case OMX_AUDIO_ChannelLFE:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_LFE1;
          break;
        case OMX_AUDIO_ChannelCS:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
          break;
        case OMX_AUDIO_ChannelLR:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
          break;
        case OMX_AUDIO_ChannelRR:
          omx_position[i] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
          break;
        case OMX_AUDIO_ChannelNone:
        default:
          /* This will break the outer loop too as the
           * i == pcm_param.nChannels afterwards */
          for (i = 0; i < pcm_param.nChannels; i++)
            omx_position[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
          break;
      }
    }
    if (pcm_param.nChannels == 1
        && omx_position[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER)
      omx_position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;

    if (omx_position[0] == GST_AUDIO_CHANNEL_POSITION_NONE
        && klass->get_channel_positions) {
      GST_WARNING_OBJECT (self,
          "Failed to get a valid channel layout, trying fallback");
      klass->get_channel_positions (self, self->dec_out_port, omx_position);
    }

    memcpy (self->position, omx_position, sizeof (omx_position));
    gst_audio_channel_positions_to_valid_order (self->position,
        pcm_param.nChannels);
    self->needs_reorder =
        (memcmp (self->position, omx_position,
            sizeof (GstAudioChannelPosition) * pcm_param.nChannels) != 0);
    if (self->needs_reorder)
      gst_audio_get_channel_reorder_map (pcm_param.nChannels, self->position,
          omx_position, self->reorder_map);

    gst_audio_info_set_format (&self->info,
        gst_audio_format_build_integer (pcm_param.eNumData ==
            OMX_NumericalDataSigned,
            pcm_param.eEndian ==
            OMX_EndianLittle ? G_LITTLE_ENDIAN : G_BIG_ENDIAN,
            pcm_param.nBitPerSample, pcm_param.nBitPerSample),
        pcm_param.nSamplingRate, pcm_param.nChannels, self->position);

    GST_DEBUG_OBJECT (self,
        "Setting output state: format %s, rate %u, channels %u",
        gst_audio_format_to_string (self->info.finfo->format),
        (guint) pcm_param.nSamplingRate, (guint) pcm_param.nChannels);

    if (!gst_audio_decoder_set_output_format (GST_AUDIO_DECODER (self),
            &self->info)
        || !gst_audio_decoder_negotiate (GST_AUDIO_DECODER (self))) {
      if (buf)
        gst_omx_port_release_buffer (port, buf);
      goto caps_failed;
    }

    GST_AUDIO_DECODER_STREAM_UNLOCK (self);

    if (acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) {
      err = gst_omx_port_set_enabled (port, TRUE);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_allocate_buffers (port);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_wait_enabled (port, 5 * GST_SECOND);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_populate (port);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;

      err = gst_omx_port_mark_reconfigured (port);
      if (err != OMX_ErrorNone)
        goto reconfigure_error;
    }

    /* Now get a buffer */
    if (acq_return != GST_OMX_ACQUIRE_BUFFER_OK) {
      return;
    }
  }

  g_assert (acq_return == GST_OMX_ACQUIRE_BUFFER_OK);
  if (!buf) {
    g_assert ((klass->cdata.hacks & GST_OMX_HACK_NO_EMPTY_EOS_BUFFER));
    GST_AUDIO_DECODER_STREAM_LOCK (self);
    goto eos;
  }

  /* This prevents a deadlock between the srcpad stream
   * lock and the audiocodec stream lock, if ::reset()
   * is called at the wrong time
   */
  if (gst_omx_port_is_flushing (port)) {
    GST_DEBUG_OBJECT (self, "Flushing");
    gst_omx_port_release_buffer (port, buf);
    goto flushing;
  }

  GST_DEBUG_OBJECT (self, "Handling buffer: 0x%08x %" G_GUINT64_FORMAT,
      (guint) buf->omx_buf->nFlags, (guint64) buf->omx_buf->nTimeStamp);

  GST_AUDIO_DECODER_STREAM_LOCK (self);

  if (buf->omx_buf->nFilledLen > 0) {
    GstBuffer *outbuf;
    gint nframes, spf;
    GstMapInfo minfo;
    GstOMXAudioDecClass *klass = GST_OMX_AUDIO_DEC_GET_CLASS (self);

    GST_DEBUG_OBJECT (self, "Handling output data");

    if (buf->omx_buf->nFilledLen % self->info.bpf != 0) {
      gst_omx_port_release_buffer (port, buf);
      goto invalid_buffer;
    }

    outbuf =
        gst_audio_decoder_allocate_output_buffer (GST_AUDIO_DECODER (self),
        buf->omx_buf->nFilledLen);

    gst_buffer_map (outbuf, &minfo, GST_MAP_WRITE);
    if (self->needs_reorder) {
      gint i, n_samples, c, n_channels;
      gint *reorder_map = self->reorder_map;
      gint16 *dest, *source;

      dest = (gint16 *) minfo.data;
      source = (gint16 *) (buf->omx_buf->pBuffer + buf->omx_buf->nOffset);
      n_samples = buf->omx_buf->nFilledLen / self->info.bpf;
      n_channels = self->info.channels;

      for (i = 0; i < n_samples; i++) {
        for (c = 0; c < n_channels; c++) {
          dest[i * n_channels + reorder_map[c]] = source[i * n_channels + c];
        }
      }
    } else {
      memcpy (minfo.data, buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
          buf->omx_buf->nFilledLen);
    }
    gst_buffer_unmap (outbuf, &minfo);

    nframes = 1;
    spf = klass->get_samples_per_frame (self, self->dec_out_port);
    if (spf != -1) {
      nframes = buf->omx_buf->nFilledLen / self->info.bpf;
      if (nframes % spf != 0)
        GST_WARNING_OBJECT (self, "Output buffer does not contain an integer "
            "number of input frames (frames: %d, spf: %d)", nframes, spf);
      nframes = (nframes + spf - 1) / spf;
    }

    GST_BUFFER_TIMESTAMP (outbuf) =
        gst_util_uint64_scale (buf->omx_buf->nTimeStamp, GST_SECOND,
        OMX_TICKS_PER_SECOND);
    if (buf->omx_buf->nTickCount != 0)
      GST_BUFFER_DURATION (outbuf) =
          gst_util_uint64_scale (buf->omx_buf->nTickCount, GST_SECOND,
          OMX_TICKS_PER_SECOND);

    flow_ret =
        gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf,
        nframes);
  }

  GST_DEBUG_OBJECT (self, "Read frame from component");

  GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret));

  if (buf) {
    err = gst_omx_port_release_buffer (port, buf);
    if (err != OMX_ErrorNone)
      goto release_error;
  }

  self->downstream_flow_ret = flow_ret;

  if (flow_ret != GST_FLOW_OK)
    goto flow_error;

  GST_AUDIO_DECODER_STREAM_UNLOCK (self);

  return;

component_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL),
        ("OpenMAX component in error state %s (0x%08x)",
            gst_omx_component_get_last_error_string (self->dec),
            gst_omx_component_get_last_error (self->dec)));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    self->started = FALSE;
    return;
  }

flushing:
  {
    GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_FLUSHING;
    self->started = FALSE;
    return;
  }

eos:
  {
    g_mutex_lock (&self->drain_lock);
    if (self->draining) {
      GST_DEBUG_OBJECT (self, "Drained");
      self->draining = FALSE;
      g_cond_broadcast (&self->drain_cond);
      flow_ret = GST_FLOW_OK;
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    } else {
      GST_DEBUG_OBJECT (self, "Component signalled EOS");
      flow_ret = GST_FLOW_EOS;
    }
    g_mutex_unlock (&self->drain_lock);

    GST_AUDIO_DECODER_STREAM_LOCK (self);
    self->downstream_flow_ret = flow_ret;

    /* Here we fallback and pause the task for the EOS case */
    if (flow_ret != GST_FLOW_OK)
      goto flow_error;

    GST_AUDIO_DECODER_STREAM_UNLOCK (self);

    return;
  }

flow_error:
  {
    if (flow_ret == GST_FLOW_EOS) {
      GST_DEBUG_OBJECT (self, "EOS");

      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
      self->started = FALSE;
    } else if (flow_ret < GST_FLOW_EOS) {
      GST_ELEMENT_ERROR (self, STREAM, FAILED,
          ("Internal data stream error."), ("stream stopped, reason %s",
              gst_flow_get_name (flow_ret)));

      gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
      self->started = FALSE;
    } else if (flow_ret == GST_FLOW_FLUSHING) {
      GST_DEBUG_OBJECT (self, "Flushing -- stopping task");
      gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
      self->started = FALSE;
    }
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

reconfigure_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Unable to reconfigure output port"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    self->started = FALSE;
    return;
  }

invalid_buffer:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Invalid sized input buffer"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED;
    self->started = FALSE;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }

caps_failed:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to set caps"));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED;
    self->started = FALSE;
    return;
  }
release_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Failed to relase output buffer to component: %s (0x%08x)",
            gst_omx_error_to_string (err), err));
    gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    self->started = FALSE;
    GST_AUDIO_DECODER_STREAM_UNLOCK (self);
    return;
  }
}
static GstFlowReturn
gst_omx_audio_dec_drain (GstOMXAudioDec * self)
{
  GstOMXAudioDecClass *klass;
  GstOMXBuffer *buf;
  GstOMXAcquireBufferReturn acq_ret;
  OMX_ERRORTYPE err;

  GST_DEBUG_OBJECT (self, "Draining component");

  klass = GST_OMX_AUDIO_DEC_GET_CLASS (self);

  if (!self->started) {
    GST_DEBUG_OBJECT (self, "Component not started yet");
    return GST_FLOW_OK;
  }
  self->started = FALSE;

  if ((klass->cdata.hacks & GST_OMX_HACK_NO_EMPTY_EOS_BUFFER)) {
    GST_WARNING_OBJECT (self, "Component does not support empty EOS buffers");
    return GST_FLOW_OK;
  }

  /* Make sure to release the base class stream lock, otherwise
   * _loop() can't call _finish_frame() and we might block forever
   * because no input buffers are released */
  GST_AUDIO_DECODER_STREAM_UNLOCK (self);

  /* Send an EOS buffer to the component and let the base
   * class drop the EOS event. We will send it later when
   * the EOS buffer arrives on the output port. */
  acq_ret = gst_omx_port_acquire_buffer (self->dec_in_port, &buf);
  if (acq_ret != GST_OMX_ACQUIRE_BUFFER_OK) {
    GST_AUDIO_DECODER_STREAM_LOCK (self);
    GST_ERROR_OBJECT (self, "Failed to acquire buffer for draining: %d",
        acq_ret);
    return GST_FLOW_ERROR;
  }

  g_mutex_lock (&self->drain_lock);
  self->draining = TRUE;
  buf->omx_buf->nFilledLen = 0;
  buf->omx_buf->nTimeStamp =
      gst_util_uint64_scale (self->last_upstream_ts, OMX_TICKS_PER_SECOND,
      GST_SECOND);
  buf->omx_buf->nTickCount = 0;
  buf->omx_buf->nFlags |= OMX_BUFFERFLAG_EOS;
  err = gst_omx_port_release_buffer (self->dec_in_port, buf);
  if (err != OMX_ErrorNone) {
    GST_ERROR_OBJECT (self, "Failed to drain component: %s (0x%08x)",
        gst_omx_error_to_string (err), err);
    g_mutex_unlock (&self->drain_lock);
    GST_AUDIO_DECODER_STREAM_LOCK (self);
    return GST_FLOW_ERROR;
  }

  GST_DEBUG_OBJECT (self, "Waiting until component is drained");

  if (G_UNLIKELY (self->dec->hacks & GST_OMX_HACK_DRAIN_MAY_NOT_RETURN)) {
    gint64 wait_until = g_get_monotonic_time () + G_TIME_SPAN_SECOND / 2;

    if (!g_cond_wait_until (&self->drain_cond, &self->drain_lock, wait_until))
      GST_WARNING_OBJECT (self, "Drain timed out");
    else
      GST_DEBUG_OBJECT (self, "Drained component");

  } else {
    g_cond_wait (&self->drain_cond, &self->drain_lock);
    GST_DEBUG_OBJECT (self, "Drained component");
  }

  g_mutex_unlock (&self->drain_lock);
  GST_AUDIO_DECODER_STREAM_LOCK (self);

  self->started = FALSE;

  return GST_FLOW_OK;
}