X-Git-Url: http://git.ffmpeg.org/gitweb/ffmpeg.git/blobdiff_plain/2ea8faf39ff6f21c2faaf8f9bd060a6636ea65fc..e90a6846c2c006fbebd00e1f2789f4a86fafacef:/libavdevice/alsa-audio.h diff --git a/libavdevice/alsa-audio.h b/libavdevice/alsa-audio.h index 32c0742..26eaee6 100644 --- a/libavdevice/alsa-audio.h +++ b/libavdevice/alsa-audio.h @@ -38,15 +38,20 @@ /* XXX: we make the assumption that the soundcard accepts this format */ /* XXX: find better solution with "preinit" method, needed also in other formats */ -#define DEFAULT_CODEC_ID AV_NE(CODEC_ID_PCM_S16BE, CODEC_ID_PCM_S16LE) +#define DEFAULT_CODEC_ID AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE) -typedef struct { +#define ALSA_BUFFER_SIZE_MAX 32768 + +typedef struct AlsaData { AVClass *class; snd_pcm_t *h; int frame_size; ///< preferred size for reads and writes int period_size; ///< bytes per sample * channels int sample_rate; ///< sample rate set by user int channels; ///< number of channels set by user + void (*reorder_func)(const void *, void *, int); + void *reorder_buf; + int reorder_buf_size; ///< in frames } AlsaData; /** @@ -57,15 +62,15 @@ typedef struct { * @param sample_rate in: requested sample rate; * out: actually selected sample rate * @param channels number of channels - * @param codec_id in: requested CodecID or CODEC_ID_NONE; - * out: actually selected CodecID, changed only if - * CODEC_ID_NONE was requested + * @param codec_id in: requested AVCodecID or AV_CODEC_ID_NONE; + * out: actually selected AVCodecID, changed only if + * AV_CODEC_ID_NONE was requested * * @return 0 if OK, AVERROR_xxx on error */ int ff_alsa_open(AVFormatContext *s, snd_pcm_stream_t mode, unsigned int *sample_rate, - int channels, enum CodecID *codec_id); + int channels, enum AVCodecID *codec_id); /** * Close the ALSA PCM. @@ -86,4 +91,6 @@ int ff_alsa_close(AVFormatContext *s1); */ int ff_alsa_xrun_recover(AVFormatContext *s1, int err); +int ff_alsa_extend_reorder_buf(AlsaData *s, int size); + #endif /* AVDEVICE_ALSA_AUDIO_H */