shithub: libopusenc

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Computing the exact (I think) padding size

--- a/src/opusenc.c

+++ b/src/opusenc.c

@@ -620,11 +620,11 @@

 static void extend_signal(float *x, int before, int after, int channels);

 int ope_drain(OggOpusEnc *enc) {

+  int pad_samples;

   if (enc->unrecoverable) return OPE_UNRECOVERABLE;

   /* Check if it's already been drained. */

   if (enc->streams == NULL) return OPE_TOO_LATE;

-  /* FIXME: Use a better value. */

-  int pad_samples = 3000;

+  pad_samples = MAX(LPC_PADDING, enc->global_granule_offset + enc->frame_size);

   if (!enc->streams->stream_is_init) init_stream(enc);

   shift_buffer(enc);

   assert(enc->buffer_end + pad_samples <= BUFFER_SAMPLES);

@@ -634,6 +634,8 @@

   enc->buffer_end += pad_samples;

   assert(enc->buffer_end <= BUFFER_SAMPLES);

   encode_buffer(enc);

+  if (enc->unrecoverable) return OPE_UNRECOVERABLE;

+  /* Draining should have called all the streams to complete. */

   assert(enc->streams == NULL);

   return OPE_OK;

 }