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Merge pull request #8289 from derrod/more-audio-codecs

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libobs,obs-ffmpeg: Add option for recording lossless audio
This commit is contained in:
Jim
2023-03-25 16:52:49 -07:00
committed by GitHub
parent 1ac609f1ff 1a51aad582
commit 7a30d535aa
6 changed files with 190 additions and 8 deletions
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libobs/media-io/audio-io.c
+8 -1
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@@ -59,6 +59,7 @@ static inline void audio_input_free(struct audio_input *input)
struct audio_mix {
DARRAY(struct audio_input) inputs;
float buffer[MAX_AUDIO_CHANNELS][AUDIO_OUTPUT_FRAMES];
float buffer_unclamped[MAX_AUDIO_CHANNELS][AUDIO_OUTPUT_FRAMES];
};
struct audio_output {
@@ -116,8 +117,12 @@ static inline void do_audio_output(struct audio_output *audio, size_t mix_idx,
for (size_t i = mix->inputs.num; i > 0; i--) {
struct audio_input *input = mix->inputs.array + (i - 1);
float(*buf)[AUDIO_OUTPUT_FRAMES] =
input->conversion.allow_clipping ? mix->buffer_unclamped
: mix->buffer;
for (size_t i = 0; i < audio->planes; i++)
data.data[i] = (uint8_t *)mix->buffer[i];
data.data[i] = (uint8_t *)buf[i];
data.frames = frames;
data.timestamp = timestamp;
@@ -142,6 +147,8 @@ static inline void clamp_audio_output(struct audio_output *audio, size_t bytes)
for (size_t plane = 0; plane < audio->planes; plane++) {
float *mix_data = mix->buffer[plane];
float *mix_end = &mix_data[float_size];
/* Unclamped mix is copied directly. */
memcpy(mix->buffer_unclamped[plane], mix_data, bytes);
while (mix_data < mix_end) {
float val = *mix_data;
libobs/media-io/audio-io.h
+1
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@@ -105,6 +105,7 @@ struct audio_convert_info {
uint32_t samples_per_sec;
enum audio_format format;
enum speaker_layout speakers;
bool allow_clipping;
};
static inline uint32_t get_audio_channels(enum speaker_layout speakers)