static int init_audio_codec(sh_audio_t *sh_audio, const char *decoder)
{
assert(!sh_audio->initialized);
resync_audio_stream(sh_audio);
sh_audio->samplesize = 4;
sh_audio->sample_format = AF_FORMAT_FLOAT_NE;
sh_audio->audio_out_minsize = 8192; // default, preinit() may change it
if (!sh_audio->ad_driver->preinit(sh_audio)) {
mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "Audio decoder preinit failed.\n");
return 0;
}
const int base_size = 65536;
// At least 64 KiB plus rounding up to next decodable unit size
sh_audio->a_buffer_size = base_size + sh_audio->audio_out_minsize;
mp_tmsg(MSGT_DECAUDIO, MSGL_V,
"dec_audio: Allocating %d + %d = %d bytes for output buffer.\n",
sh_audio->audio_out_minsize, base_size,
sh_audio->a_buffer_size);
sh_audio->a_buffer = av_mallocz(sh_audio->a_buffer_size);
if (!sh_audio->a_buffer)
abort();
sh_audio->a_buffer_len = 0;
if (!sh_audio->ad_driver->init(sh_audio, decoder)) {
mp_tmsg(MSGT_DECAUDIO, MSGL_V, "Audio decoder init failed.\n");
uninit_audio(sh_audio); // free buffers
return 0;
}
sh_audio->initialized = 1;
if (mp_chmap_is_empty(&sh_audio->channels) || !sh_audio->samplerate) {
mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "Audio decoder did not specify "
"audio format!\n");
uninit_audio(sh_audio); // free buffers
return 0;
}
return 1;
}
static int init_audio_codec(sh_audio_t *sh_audio)
{
assert(!sh_audio->initialized);
resync_audio_stream(sh_audio);
if ((af_cfg.force & AF_INIT_FORMAT_MASK) == AF_INIT_FLOAT) {
int fmt = AF_FORMAT_FLOAT_NE;
if (sh_audio->ad_driver->control(sh_audio, ADCTRL_QUERY_FORMAT,
&fmt) == CONTROL_TRUE) {
sh_audio->sample_format = fmt;
sh_audio->samplesize = 4;
}
}
sh_audio->audio_out_minsize = 8192; // default, preinit() may change it
if (!sh_audio->ad_driver->preinit(sh_audio)) {
mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "ADecoder preinit failed :(\n");
return 0;
}
/* allocate audio in buffer: */
if (sh_audio->audio_in_minsize > 0) {
sh_audio->a_in_buffer_size = sh_audio->audio_in_minsize;
mp_tmsg(MSGT_DECAUDIO, MSGL_V, "dec_audio: Allocating %d bytes for input buffer.\n",
sh_audio->a_in_buffer_size);
sh_audio->a_in_buffer = av_mallocz(sh_audio->a_in_buffer_size);
}
const int base_size = 65536;
// At least 64 KiB plus rounding up to next decodable unit size
sh_audio->a_buffer_size = base_size + sh_audio->audio_out_minsize;
mp_tmsg(MSGT_DECAUDIO, MSGL_V, "dec_audio: Allocating %d + %d = %d bytes for output buffer.\n",
sh_audio->audio_out_minsize, base_size, sh_audio->a_buffer_size);
sh_audio->a_buffer = av_mallocz(sh_audio->a_buffer_size);
if (!sh_audio->a_buffer) {
mp_tmsg(MSGT_DECAUDIO, MSGL_ERR, "Cannot allocate audio out buffer.\n");
return 0;
}
sh_audio->a_buffer_len = 0;
if (!sh_audio->ad_driver->init(sh_audio)) {
mp_tmsg(MSGT_DECAUDIO, MSGL_WARN, "ADecoder init failed :(\n");
uninit_audio(sh_audio); // free buffers
return 0;
}
sh_audio->initialized = 1;
if (!sh_audio->channels || !sh_audio->samplerate) {
mp_tmsg(MSGT_DECAUDIO, MSGL_WARN, "Unknown/missing audio format -> no sound\n");
uninit_audio(sh_audio); // free buffers
return 0;
}
if (!sh_audio->o_bps)
sh_audio->o_bps = sh_audio->channels * sh_audio->samplerate
* sh_audio->samplesize;
mp_msg(MSGT_DECAUDIO, MSGL_INFO,
"AUDIO: %d Hz, %d ch, %s, %3.1f kbit/%3.2f%% (ratio: %d->%d)\n",
sh_audio->samplerate, sh_audio->channels,
af_fmt2str_short(sh_audio->sample_format),
sh_audio->i_bps * 8 * 0.001,
((float) sh_audio->i_bps / sh_audio->o_bps) * 100.0,
sh_audio->i_bps, sh_audio->o_bps);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_BITRATE=%d\nID_AUDIO_RATE=%d\n" "ID_AUDIO_NCH=%d\n",
sh_audio->i_bps * 8, sh_audio->samplerate, sh_audio->channels);
return 1;
}
