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atdec: Keep track of the current position

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It's required to set a valid sample time for decoding on iOS.
This commit is contained in:
Sebastian Dröge 2014-03-11 14:32:12 +01:00
parent 8d8b3c0401
commit f331d3159f
2 changed files with 23 additions and 0 deletions
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22
sys/applemedia/atdec.c
View file

@ -158,6 +158,7 @@ gst_atdec_destroy_queue (GstATDec * atdec, gboolean drain)
AudioQueueStop (atdec->queue, drain);
AudioQueueDispose (atdec->queue, true);
atdec->queue = NULL;
atdec->output_position = 0;
}
void
@ -179,6 +180,7 @@ gst_atdec_start (GstAudioDecoder * decoder)
GstATDec *atdec = GST_ATDEC (decoder);
GST_DEBUG_OBJECT (atdec, "start");
atdec->output_position = 0;
return TRUE;
}
@ -419,6 +421,8 @@ gst_atdec_handle_frame (GstAudioDecoder * decoder, GstBuffer * buffer)
goto allocate_output_failed;
/* pull the frames */
timestamp.kAudioTimeStampSampleTimeValid;
timestamp.mSampleTime = atdec->output_position;
status =
AudioQueueOfflineRender (atdec->queue, &timestamp, output_buffer,
out_frames);
@ -426,6 +430,12 @@ gst_atdec_handle_frame (GstAudioDecoder * decoder, GstBuffer * buffer)
goto offline_render_failed;
if (output_buffer->mAudioDataByteSize) {
if (output_buffer->mAudioDataByteSize % audio_info->bpf != 0)
goto invalid_buffer_size;
atdec->output_position +=
output_buffer->mAudioDataByteSize / audio_info->bpf;
out =
gst_audio_decoder_allocate_output_buffer (decoder,
output_buffer->mAudioDataByteSize);
@ -474,6 +484,17 @@ offline_render_failed:
return flow_ret;
}
invalid_buffer_size:
{
GST_AUDIO_DECODER_ERROR (atdec, 1, STREAM, DECODE, (NULL),
("AudioQueueOfflineRender returned invalid buffer size: %u (bpf %d)",
output_buffer->mAudioDataByteSize, audio_info->bpf), flow_ret);
AudioQueueFreeBuffer (atdec->queue, output_buffer);
return flow_ret;
}
}
static void
@ -482,4 +503,5 @@ gst_atdec_flush (GstAudioDecoder * decoder, gboolean hard)
GstATDec *atdec = GST_ATDEC (decoder);
AudioQueueReset (atdec->queue);
atdec->output_position = 0;
}

1
sys/applemedia/atdec.h
View file

@ -39,6 +39,7 @@ struct _GstATDec
GstAudioDecoder decoder;
AudioQueueRef queue;
gint spf;
guint64 output_position;
};
struct _GstATDecClass