mirror of https://github.com/mpv-player/mpv
98 lines
1.7 KiB
C
98 lines
1.7 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include "audio_out.h"
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#include "audio_out_internal.h"
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static ao_info_t info =
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{
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"PCM writer audio output",
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"pcm",
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"Atmosfear",
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""
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};
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LIBAO_EXTERN(pcm)
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// there are some globals:
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// ao_samplerate
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// ao_channels
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// ao_format
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// ao_bps
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// ao_outburst
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// ao_buffersize
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static FILE *fp = NULL;
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// to set/get/query special features/parameters
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static int control(int cmd,int arg){
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return -1;
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}
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// open & setup audio device
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// return: 1=success 0=fail
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static int init(int rate,int channels,int format,int flags){
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printf("PCM: File: audiodump.pcm Samplerate: %iHz Channels: %s Format %s\n", rate, (channels > 1) ? "Stereo" : "Mono", audio_out_format_name(format));
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printf("PCM: Info - fastest dumping is achieved with -vo null -hardframedrop.\n");
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fp = fopen("audiodump.pcm", "wb");
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ao_outburst = 4096;
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if(fp) return 1;
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printf("PCM: Failed to open audiodump.pcm for writing!\n");
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return 0;
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}
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// close audio device
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static void uninit(){
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fclose(fp);
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}
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// stop playing and empty buffers (for seeking/pause)
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static void reset(){
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}
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// stop playing, keep buffers (for pause)
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static void audio_pause()
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{
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// for now, just call reset();
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reset();
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}
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// resume playing, after audio_pause()
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static void audio_resume()
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{
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}
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// return: how many bytes can be played without blocking
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static int get_space(){
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return ao_outburst;
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}
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// plays 'len' bytes of 'data'
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// it should round it down to outburst*n
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// return: number of bytes played
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static int play(void* data,int len,int flags){
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//printf("PCM: Writing chunk!\n");
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fwrite(data,len,1,fp);
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return len;
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}
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// return: how many unplayed bytes are in the buffer
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static int get_delay(){
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return 0;
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}
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