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generic-pc: implement cAudio::getAudioInfo()

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This commit is contained in:
Stefan Seyfried
2013-06-01 15:21:43 +02:00
parent f4f72f34b9
commit 2efe616a23
1 changed files with 46 additions and 5 deletions
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51
generic-pc/audio.cpp
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@@ -55,6 +55,8 @@ static cAudio *gThiz = NULL;
static ao_device *adevice = NULL;
static ao_sample_format sformat;
static AVCodecContext *c= NULL;
cAudio::cAudio(void *, void *, void *)
{
thread_started = false;
@@ -194,12 +196,51 @@ int cAudio::StopClip()
void cAudio::getAudioInfo(int &type, int &layer, int &freq, int &bitrate, int &mode)
{
lt_debug("%s\n", __func__);
type = 0;
layer = 0;
layer = 0; /* not used */
freq = 0;
bitrate = 0;
mode = 0;
bitrate = 0; /* not used, but easy to get :-) */
mode = 0; /* default: stereo */
if (c) {
type = (c->codec_id != AV_CODEC_ID_MP2); /* only mpeg / not mpeg is indicated */
freq = c->sample_rate;
bitrate = c->bit_rate;
if (c->channels == 1)
mode = 3; /* for AV_CODEC_ID_MP2, only stereo / mono is detected for now */
if (c->codec_id != AV_CODEC_ID_MP2) {
switch (c->channel_layout) {
case AV_CH_LAYOUT_MONO:
mode = 1; // "C"
break;
case AV_CH_LAYOUT_STEREO:
mode = 2; // "L/R"
break;
case AV_CH_LAYOUT_2_1:
case AV_CH_LAYOUT_SURROUND:
mode = 3; // "L/C/R"
break;
case AV_CH_LAYOUT_2POINT1:
mode = 4; // "L/R/S"
break;
case AV_CH_LAYOUT_3POINT1:
mode = 5; // "L/C/R/S"
break;
case AV_CH_LAYOUT_2_2:
case AV_CH_LAYOUT_QUAD:
mode = 6; // "L/R/SL/SR"
break;
case AV_CH_LAYOUT_5POINT0:
case AV_CH_LAYOUT_5POINT1:
mode = 7; // "L/C/R/SL/SR"
break;
default:
lt_info("%s: unknown ch_layout 0x%" PRIx64 "\n",
__func__, c->channel_layout);
}
}
}
lt_debug("%s t: %d l: %d f: %d b: %d m: %d codec_id: %x\n",
__func__, type, layer, freq, bitrate, mode, c->codec_id);
};
void cAudio::SetSRS(int /*iq_enable*/, int /*nmgr_enable*/, int /*iq_mode*/, int /*iq_level*/)
@@ -271,7 +312,6 @@ void cAudio::run()
av_register_all();
AVCodec *codec;
AVCodecContext *c= NULL;
AVFormatContext *avfc = NULL;
AVInputFormat *inp;
AVFrame *frame;
@@ -410,6 +450,7 @@ void cAudio::run()
avcodec_free_frame(&frame);
out2:
avcodec_close(c);
c = NULL;
out:
avformat_close_input(&avfc);
av_free(pIOCtx->buffer);