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opusenc: only request and process 1 frame at a time

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... since it is specified in _finish_frame that input buffer may be invalidated
after calling it, and is as such not reliably available for further encoding.

Also, requesting or allowing several frames is only useful if subclass intends
to process these "in 1 run" (as in, 1 output buffer), not for having another
(inner) loop in subclass where the baseclass one will do just fine.
This commit is contained in:
Mark Nauwelaerts 2012-03-07 12:59:28 +01:00
parent 11f2207d1f
commit 74256b69af
1 changed files with 32 additions and 40 deletions
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72
ext/opus/gstopusenc.c
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@ -384,7 +384,7 @@ gst_opus_enc_setup_base_class (GstOpusEnc * enc, GstAudioEncoder * benc)
gst_opus_enc_get_latency (enc), gst_opus_enc_get_latency (enc));
gst_audio_encoder_set_frame_samples_min (benc, enc->frame_samples);
gst_audio_encoder_set_frame_samples_max (benc, enc->frame_samples);
gst_audio_encoder_set_frame_max (benc, 0);
gst_audio_encoder_set_frame_max (benc, 1);
}
static gint
@ -792,6 +792,8 @@ gst_opus_enc_encode (GstOpusEnc * enc, GstBuffer * buf)
gsize bsize, size;
gsize bytes;
gint ret = GST_FLOW_OK;
gint outsize;
GstBuffer *outbuf;
g_mutex_lock (enc->property_lock);
@ -816,52 +818,42 @@ gst_opus_enc_encode (GstOpusEnc * enc, GstBuffer * buf)
goto done;
}
g_assert (size == bytes);
while (size) {
gint outsize;
GstBuffer *outbuf;
ret = gst_pad_alloc_buffer_and_set_caps (GST_AUDIO_ENCODER_SRC_PAD (enc),
GST_BUFFER_OFFSET_NONE, enc->max_payload_size * enc->n_channels,
GST_PAD_CAPS (GST_AUDIO_ENCODER_SRC_PAD (enc)), &outbuf);
ret = gst_pad_alloc_buffer_and_set_caps (GST_AUDIO_ENCODER_SRC_PAD (enc),
GST_BUFFER_OFFSET_NONE, enc->max_payload_size * enc->n_channels,
GST_PAD_CAPS (GST_AUDIO_ENCODER_SRC_PAD (enc)), &outbuf);
if (GST_FLOW_OK != ret)
goto done;
if (GST_FLOW_OK != ret)
goto done;
GST_DEBUG_OBJECT (enc, "encoding %d samples (%d bytes)",
enc->frame_samples, (int) bytes);
GST_DEBUG_OBJECT (enc, "encoding %d samples (%d bytes)",
enc->frame_samples, (int) bytes);
outsize =
opus_multistream_encode (enc->state, (const gint16 *) data,
enc->frame_samples, GST_BUFFER_DATA (outbuf),
enc->max_payload_size * enc->n_channels);
outsize =
opus_multistream_encode (enc->state, (const gint16 *) data,
enc->frame_samples, GST_BUFFER_DATA (outbuf),
enc->max_payload_size * enc->n_channels);
if (outsize < 0) {
GST_ERROR_OBJECT (enc, "Encoding failed: %d", outsize);
ret = GST_FLOW_ERROR;
goto done;
} else if (outsize > enc->max_payload_size) {
GST_WARNING_OBJECT (enc,
"Encoded size %d is higher than max payload size (%d bytes)",
outsize, enc->max_payload_size);
ret = GST_FLOW_ERROR;
goto done;
}
GST_DEBUG_OBJECT (enc, "Output packet is %u bytes", outsize);
GST_BUFFER_SIZE (outbuf) = outsize;
ret =
gst_audio_encoder_finish_frame (GST_AUDIO_ENCODER (enc), outbuf,
enc->frame_samples);
if ((GST_FLOW_OK != ret) && (GST_FLOW_NOT_LINKED != ret))
goto done;
data += bytes;
size -= bytes;
if (outsize < 0) {
GST_ERROR_OBJECT (enc, "Encoding failed: %d", outsize);
ret = GST_FLOW_ERROR;
goto done;
} else if (outsize > enc->max_payload_size) {
GST_WARNING_OBJECT (enc,
"Encoded size %d is higher than max payload size (%d bytes)",
outsize, enc->max_payload_size);
ret = GST_FLOW_ERROR;
goto done;
}
GST_DEBUG_OBJECT (enc, "Output packet is %u bytes", outsize);
GST_BUFFER_SIZE (outbuf) = outsize;
ret =
gst_audio_encoder_finish_frame (GST_AUDIO_ENCODER (enc), outbuf,
enc->frame_samples);
done:
g_mutex_unlock (enc->property_lock);