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Added support for writing wave files and specifying filename to write to.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1113 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atmosfear 2001-06-12 14:24:26 +00:00
parent 2fe79a9b75
commit b9e199808d
2 changed files with 80 additions and 5 deletions
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7
cfg-mplayer.h
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@ -27,6 +27,9 @@ extern int vo_dbpp;
extern int osd_level;
extern int sub_unicode;
extern char *ao_outputfilename;
extern int ao_pcm_waveheader;
#ifdef HAVE_X11
extern char *mDisplayName;
#endif
@ -104,6 +107,10 @@ struct config conf[]={
{"dumpfile", &stream_dump_name, CONF_TYPE_STRING, 0, 0, 0},
{"dumpaudio", &stream_dump_type, CONF_TYPE_FLAG, 0, 0, 1},
{"dumpvideo", &stream_dump_type, CONF_TYPE_FLAG, 0, 0, 2},
{"aofile", &ao_outputfilename, CONF_TYPE_STRING, 0, 0, 0},
{"waveheader", &ao_pcm_waveheader, CONF_TYPE_FLAG, 0, 0, 1},
{"nowaveheader", &ao_pcm_waveheader, CONF_TYPE_FLAG, 0, 1, 0},
// {"auds", &avi_header.audio_codec, CONF_TYPE_STRING, 0, 0, 0},
// {"vids", &avi_header.video_codec, CONF_TYPE_STRING, 0, 0, 0},

78
libao2/ao_pcm.c
View File

@ -6,7 +6,7 @@
static ao_info_t info =
{
"PCM writer audio output",
"RAW PCM/WAVE file writer audio output",
"pcm",
"Atmosfear",
""
@ -22,6 +22,49 @@ LIBAO_EXTERN(pcm)
// ao_outburst
// ao_buffersize
char *ao_outputfilename = NULL;
int ao_pcm_waveheader = 1;
#define WAV_ID_RIFF 0x46464952 /* "RIFF" */
#define WAV_ID_WAVE 0x45564157 /* "WAVE" */
#define WAV_ID_FMT 0x20746d66 /* "fmt " */
#define WAV_ID_DATA 0x61746164 /* "data" */
#define WAV_ID_PCM 0x0001
struct WaveHeader
{
unsigned long riff;
unsigned long file_length;
unsigned long wave;
unsigned long fmt;
unsigned long fmt_length;
short fmt_tag;
short channels;
unsigned long sample_rate;
unsigned long bytes_per_second;
short block_align;
short bits;
unsigned long data;
unsigned long data_length;
};
static struct WaveHeader wavhdr = {
WAV_ID_RIFF,
0x00000000,
WAV_ID_WAVE,
WAV_ID_FMT,
16,
WAV_ID_PCM,
2,
44100,
192000,
4,
16,
WAV_ID_DATA,
0x00000000
};
static FILE *fp = NULL;
// to set/get/query special features/parameters
@ -32,22 +75,44 @@ static int control(int cmd,int arg){
// open & setup audio device
// return: 1=success 0=fail
static int init(int rate,int channels,int format,int flags){
if(!ao_outputfilename) {
ao_outputfilename = (char *) malloc(sizeof(char) * 14);
strcpy(ao_outputfilename,(ao_pcm_waveheader ? "audiodump.wav" : "audiodump.pcm"));
}
printf("PCM: File: audiodump.pcm Samplerate: %iHz Channels: %s Format %s\n", rate, (channels > 1) ? "Stereo" : "Mono", audio_out_format_name(format));
wavhdr.fmt_length = 16; /* = format? */
wavhdr.channels = channels;
wavhdr.sample_rate = rate;
wavhdr.bytes_per_second = rate * (format / 8) * channels;
wavhdr.bits = format,
printf("PCM: File: %s (%s) Samplerate: %iHz Channels: %s Format %s\n", ao_outputfilename, (ao_pcm_waveheader?"WAVE":"RAW PCM"), rate, (channels > 1) ? "Stereo" : "Mono", audio_out_format_name(format));
printf("PCM: Info - fastest dumping is achieved with -vo null -hardframedrop.\n");
fp = fopen("audiodump.pcm", "wb");
printf("PCM: Info - to write WAVE files use -waveheader (default), for RAW PCM -nowaveheader.\n");
fp = fopen(ao_outputfilename, "wb");
ao_outburst = 4096;
if(fp) return 1;
printf("PCM: Failed to open audiodump.pcm for writing!\n");
if(fp) {
if(ao_pcm_waveheader) /* Reserve space for wave header */
fseek(fp, sizeof(wavhdr), SEEK_SET);
return 1;
}
printf("PCM: Failed to open %s for writing!\n", ao_outputfilename);
return 0;
}
// close audio device
static void uninit(){
if(ao_pcm_waveheader){ /* Write wave header */
wavhdr.file_length = wavhdr.data_length + sizeof(wavhdr);
fseek(fp, 0, SEEK_SET);
fwrite(&wavhdr,sizeof(wavhdr),1,fp);
}
fclose(fp);
free(ao_outputfilename);
}
// stop playing and empty buffers (for seeking/pause)
@ -81,6 +146,9 @@ static int play(void* data,int len,int flags){
//printf("PCM: Writing chunk!\n");
fwrite(data,len,1,fp);
if(ao_pcm_waveheader)
wavhdr.data_length += len;
return len;
}