X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fresampler.cc;h=e414436e8b39960c6c5f78ca16188c0781bc0407;hb=8d58a7c5f4320ad5c111e336c45e44d6b51ab509;hp=00121384dce7617ab59f0ee85ea0373a7ab0c440;hpb=e6f28e7cda23c1ba3c49cc1bf2dc1491c2f87160;p=dcpomatic.git diff --git a/src/lib/resampler.cc b/src/lib/resampler.cc index 00121384d..e414436e8 100644 --- a/src/lib/resampler.cc +++ b/src/lib/resampler.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2013 Carl Hetherington + Copyright (C) 2013-2014 Carl Hetherington This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -19,6 +19,7 @@ extern "C" { #include "libavutil/channel_layout.h" +#include "libavutil/opt.h" } #include "resampler.h" #include "audio_buffers.h" @@ -37,24 +38,19 @@ Resampler::Resampler (int in, int out, int channels) , _out_rate (out) , _channels (channels) { - /* We will be using planar float data when we call the - resampler. As far as I can see, the audio channel - layout is not necessary for our purposes; it seems - only to be used get the number of channels and - decide if rematrixing is needed. It won't be, since - input and output layouts are the same. - */ - - _swr_context = swr_alloc_set_opts ( - 0, - av_get_default_channel_layout (_channels), - AV_SAMPLE_FMT_FLTP, - _out_rate, - av_get_default_channel_layout (_channels), - AV_SAMPLE_FMT_FLTP, - _in_rate, - 0, 0 - ); + _swr_context = swr_alloc (); + + /* Sample formats */ + av_opt_set_int (_swr_context, "isf", AV_SAMPLE_FMT_FLTP, 0); + av_opt_set_int (_swr_context, "osf", AV_SAMPLE_FMT_FLTP, 0); + + /* Channel counts */ + av_opt_set_int (_swr_context, "ich", _channels, 0); + av_opt_set_int (_swr_context, "och", _channels, 0); + + /* Sample rates */ + av_opt_set_int (_swr_context, "isr", _in_rate, 0); + av_opt_set_int (_swr_context, "osr", _out_rate, 0); swr_init (_swr_context); } @@ -93,7 +89,7 @@ Resampler::flush () int64_t const pass_size = 256; shared_ptr pass (new AudioBuffers (_channels, 256)); - while (1) { + while (true) { int const frames = swr_convert (_swr_context, (uint8_t **) pass->data(), pass_size, 0, 0); if (frames < 0) {