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added intial async audio/video code, fixed a few bugs, improved thread safety, and made a few other minor adjustments

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jp9000
2013-10-24 00:57:55 -07:00
parent 0a11dbabef
commit ac2c08927f
11 changed files with 786 additions and 79 deletions
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55
libobs/media-io/audio-io.h
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@@ -30,7 +30,9 @@ extern "C" {
*/
struct audio_output;
struct audio_line;
typedef struct audio_output *audio_t;
typedef struct audio_line *audio_line_t;
enum audio_type {
AUDIO_FORMAT_UNKNOWN,
@@ -56,11 +58,8 @@ enum speaker_setup {
};
struct audio_data {
void *data;
const void *data;
uint32_t frames;
uint32_t speakers;
uint32_t samples_per_sec;
enum audio_type type;
uint64_t timestamp;
};
@@ -68,21 +67,65 @@ struct audio_info {
const char *name;
const char *format;
uint32_t channels;
uint32_t samples_per_sec;
enum audio_type type;
enum speaker_setup speakers;
};
static inline uint32_t get_audio_channels(enum speaker_setup speakers)
{
switch (speakers) {
case SPEAKERS_MONO: return 1;
case SPEAKERS_STEREO: return 2;
case SPEAKERS_2POINT1: return 3;
case SPEAKERS_SURROUND:
case SPEAKERS_QUAD: return 4;
case SPEAKERS_4POINT1: return 5;
case SPEAKERS_5POINT1:
case SPEAKERS_5POINT1_SURROUND: return 6;
case SPEAKERS_7POINT1: return 8;
case SPEAKERS_7POINT1_SURROUND: return 8;
default:
case SPEAKERS_UNKNOWN: return 0;
}
}
static inline size_t get_audio_bytes_per_channel(enum audio_type type)
{
switch (type) {
case AUDIO_FORMAT_8BIT: return 1;
case AUDIO_FORMAT_16BIT: return 2;
case AUDIO_FORMAT_24BIT: return 3;
case AUDIO_FORMAT_FLOAT:
case AUDIO_FORMAT_32BIT: return 4;
default:
case AUDIO_FORMAT_UNKNOWN: return 0;
}
}
static inline size_t get_audio_size(enum audio_type type,
enum speaker_setup speakers, uint32_t frames)
{
return get_audio_channels(speakers) *
get_audio_bytes_per_channel(type) *
frames;
}
#define AUDIO_OUTPUT_SUCCESS 0
#define AUDIO_OUTPUT_INVALIDPARAM -1
#define AUDIO_OUTPUT_FAIL -2
EXPORT int audio_output_open(audio_t *audio, media_t media,
struct audio_info *info);
EXPORT void audio_output_data(audio_t audio, struct audio_data *data);
EXPORT audio_line_t audio_output_createline(audio_t audio);
EXPORT size_t audio_output_blocksize(audio_t audio);
EXPORT const struct audio_info *audio_output_getinfo(audio_t audio);
EXPORT void audio_output_close(audio_t audio);
EXPORT void audio_line_destroy(audio_line_t line);
EXPORT void audio_line_output(audio_line_t line, const struct audio_data *data);
#ifdef __cplusplus
}
#endif