Пример #1
0
static void
gst_omx_audio_enc_flush (GstAudioEncoder * encoder)
{
  GstOMXAudioEnc *self;

  self = GST_OMX_AUDIO_ENC (encoder);

  GST_DEBUG_OBJECT (self, "Resetting encoder");

  gst_omx_audio_enc_drain (self);

  gst_omx_port_set_flushing (self->enc_in_port, 5 * GST_SECOND, TRUE);
  gst_omx_port_set_flushing (self->enc_out_port, 5 * GST_SECOND, TRUE);

  /* Wait until the srcpad loop is finished */
  GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
  GST_PAD_STREAM_LOCK (GST_AUDIO_ENCODER_SRC_PAD (self));
  GST_PAD_STREAM_UNLOCK (GST_AUDIO_ENCODER_SRC_PAD (self));
  GST_AUDIO_ENCODER_STREAM_LOCK (self);

  gst_omx_port_set_flushing (self->enc_in_port, 5 * GST_SECOND, FALSE);
  gst_omx_port_set_flushing (self->enc_out_port, 5 * GST_SECOND, FALSE);
  gst_omx_port_populate (self->enc_out_port);

  /* Start the srcpad loop again */
  self->last_upstream_ts = 0;
  self->downstream_flow_ret = GST_FLOW_OK;
  self->eos = FALSE;
  gst_pad_start_task (GST_AUDIO_ENCODER_SRC_PAD (self),
      (GstTaskFunction) gst_omx_audio_enc_loop, encoder, NULL);
}
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");
}
Пример #3
0
static void
gst_omx_audio_enc_loop (GstOMXAudioEnc * self)
{
  GstOMXAudioEncClass *klass;
  GstOMXPort *port = self->enc_out_port;
  GstOMXBuffer *buf = NULL;
  GstFlowReturn flow_ret = GST_FLOW_OK;
  GstOMXAcquireBufferReturn acq_return;
  OMX_ERRORTYPE err;

  klass = GST_OMX_AUDIO_ENC_GET_CLASS (self);

  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_ENCODER_SRC_PAD (self))
      || acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) {
    GstAudioInfo *info =
        gst_audio_encoder_get_audio_info (GST_AUDIO_ENCODER (self));
    GstCaps *caps;

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

    /* Reallocate all buffers */
    if (acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) {
      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;

    }

    GST_AUDIO_ENCODER_STREAM_LOCK (self);

    caps = klass->get_caps (self, self->enc_out_port, info);
    if (!caps) {
      if (buf)
        gst_omx_port_release_buffer (self->enc_out_port, buf);
      GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
      goto caps_failed;
    }

    GST_DEBUG_OBJECT (self, "Setting output caps: %" GST_PTR_FORMAT, caps);

    if (!gst_pad_set_caps (GST_AUDIO_ENCODER_SRC_PAD (self), caps)) {
      gst_caps_unref (caps);
      if (buf)
        gst_omx_port_release_buffer (self->enc_out_port, buf);
      GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
      goto caps_failed;
    }
    gst_caps_unref (caps);

    GST_AUDIO_ENCODER_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_ENCODER_STREAM_LOCK (self);
    goto eos;
  }

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

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

  GST_AUDIO_ENCODER_STREAM_LOCK (self);

  if ((buf->omx_buf->nFlags & OMX_BUFFERFLAG_CODECCONFIG)
      && buf->omx_buf->nFilledLen > 0) {
    GstCaps *caps;
    GstBuffer *codec_data;
    GstMapInfo map = GST_MAP_INFO_INIT;

    GST_DEBUG_OBJECT (self, "Handling codec data");
    caps =
        gst_caps_copy (gst_pad_get_current_caps (GST_AUDIO_ENCODER_SRC_PAD
            (self)));
    codec_data = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);

    gst_buffer_map (codec_data, &map, GST_MAP_WRITE);
    memcpy (map.data,
        buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
        buf->omx_buf->nFilledLen);
    gst_buffer_unmap (codec_data, &map);

    gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, codec_data, NULL);
    if (!gst_pad_set_caps (GST_AUDIO_ENCODER_SRC_PAD (self), caps)) {
      gst_caps_unref (caps);
      if (buf)
        gst_omx_port_release_buffer (self->enc_out_port, buf);
      GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
      goto caps_failed;
    }
    gst_caps_unref (caps);
    flow_ret = GST_FLOW_OK;
  } else if (buf->omx_buf->nFilledLen > 0) {
    GstBuffer *outbuf;
    guint n_samples;

    GST_DEBUG_OBJECT (self, "Handling output data");

    n_samples =
        klass->get_num_samples (self, self->enc_out_port,
        gst_audio_encoder_get_audio_info (GST_AUDIO_ENCODER (self)), buf);

    if (buf->omx_buf->nFilledLen > 0) {
      GstMapInfo map = GST_MAP_INFO_INIT;
      outbuf = gst_buffer_new_and_alloc (buf->omx_buf->nFilledLen);

      gst_buffer_map (outbuf, &map, GST_MAP_WRITE);

      memcpy (map.data,
          buf->omx_buf->pBuffer + buf->omx_buf->nOffset,
          buf->omx_buf->nFilledLen);
      gst_buffer_unmap (outbuf, &map);

    } else {
      outbuf = gst_buffer_new ();
    }

    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_encoder_finish_frame (GST_AUDIO_ENCODER (self),
        outbuf, n_samples);
  }

  GST_DEBUG_OBJECT (self, "Handled output data");

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

  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_ENCODER_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->enc),
            gst_omx_component_get_last_error (self->enc)));
    gst_pad_push_event (GST_AUDIO_ENCODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_ENCODER_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_ENCODER_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_ENCODER_SRC_PAD (self));
    } else {
      GST_DEBUG_OBJECT (self, "Component signalled EOS");
      flow_ret = GST_FLOW_EOS;
    }
    g_mutex_unlock (&self->drain_lock);

    GST_AUDIO_ENCODER_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_ENCODER_STREAM_UNLOCK (self);

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

      gst_pad_push_event (GST_AUDIO_ENCODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_ENCODER_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_ENCODER_SRC_PAD (self),
          gst_event_new_eos ());
      gst_pad_pause_task (GST_AUDIO_ENCODER_SRC_PAD (self));
    }
    self->started = FALSE;
    GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
    return;
  }
reconfigure_error:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL),
        ("Unable to reconfigure output port"));
    gst_pad_push_event (GST_AUDIO_ENCODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_ENCODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED;
    self->started = FALSE;
    return;
  }
caps_failed:
  {
    GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to set caps"));
    gst_pad_push_event (GST_AUDIO_ENCODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_ENCODER_SRC_PAD (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_ENCODER_SRC_PAD (self), gst_event_new_eos ());
    gst_pad_pause_task (GST_AUDIO_ENCODER_SRC_PAD (self));
    self->downstream_flow_ret = GST_FLOW_ERROR;
    self->started = FALSE;
    GST_AUDIO_ENCODER_STREAM_UNLOCK (self);
    return;
  }
}
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;
  }
}