diff options
Diffstat (limited to 'examples/alffplay.c')
| -rw-r--r-- | examples/alffplay.c | 62 |
1 files changed, 57 insertions, 5 deletions
diff --git a/examples/alffplay.c b/examples/alffplay.c index d8ef0e57..609d4146 100644 --- a/examples/alffplay.c +++ b/examples/alffplay.c @@ -548,6 +548,7 @@ static int audio_thread(void *userdata) MovieState *movState = (MovieState*)userdata; uint8_t *samples = NULL; ALsizei buffer_len; + ALenum fmt; alGenBuffers(AUDIO_BUFFER_QUEUE_SIZE, movState->audio.buffer); alGenSources(1, &movState->audio.source); @@ -557,20 +558,37 @@ static int audio_thread(void *userdata) av_new_packet(&movState->audio.pkt, 0); - /* Find a suitable format for OpenAL. Currently does not handle surround - * sound (everything non-mono becomes stereo). */ + /* Find a suitable format for OpenAL. */ + movState->audio.format = AL_NONE; if(movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_U8 || movState->audio.st->codec->sample_fmt == AV_SAMPLE_FMT_U8P) { movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_U8; movState->audio.frame_size = 1; + if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_71CHN8")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 8; + movState->audio.format = fmt; + } + if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || + movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_51CHN8")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 6; + movState->audio.format = fmt; + } if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; movState->audio.frame_size *= 1; movState->audio.format = AL_FORMAT_MONO8; } - else + if(movState->audio.format == AL_NONE) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; movState->audio.frame_size *= 2; @@ -583,13 +601,30 @@ static int audio_thread(void *userdata) { movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_FLT; movState->audio.frame_size = 4; + if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_71CHN32")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 8; + movState->audio.format = fmt; + } + if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || + movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_51CHN32")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 6; + movState->audio.format = fmt; + } if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; movState->audio.frame_size *= 1; movState->audio.format = AL_FORMAT_MONO_FLOAT32; } - else + if(movState->audio.format == AL_NONE) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; movState->audio.frame_size *= 2; @@ -600,13 +635,30 @@ static int audio_thread(void *userdata) { movState->audio.dst_sample_fmt = AV_SAMPLE_FMT_S16; movState->audio.frame_size = 2; + if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_7POINT1 && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_71CHN16")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 8; + movState->audio.format = fmt; + } + if((movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1 || + movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_5POINT1_BACK) && + alIsExtensionPresent("AL_EXT_MCFORMATS") && + (fmt=alGetEnumValue("AL_FORMAT_51CHN16")) != AL_NONE && fmt != -1) + { + movState->audio.dst_ch_layout = movState->audio.st->codec->channel_layout; + movState->audio.frame_size *= 6; + movState->audio.format = fmt; + } if(movState->audio.st->codec->channel_layout == AV_CH_LAYOUT_MONO) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_MONO; movState->audio.frame_size *= 1; movState->audio.format = AL_FORMAT_MONO16; } - else + if(movState->audio.format == AL_NONE) { movState->audio.dst_ch_layout = AV_CH_LAYOUT_STEREO; movState->audio.frame_size *= 2; |