mirror of https://github.com/mpv-player/mpv
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "config.h"
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#include "ad_internal.h"
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#include "../roqav.h"
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//#include "../adpcm.h"
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static ad_info_t info =
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{
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"Id RoQ File Audio Decoder",
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"roqaudio",
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AFM_ROQAUDIO,
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"Nick Kurshev",
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"Mike Melanson ???"
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"RoQA is an internal MPlayer FOURCC"
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};
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LIBAD_EXTERN(roqaudio)
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static int init(sh_audio_t *sh_audio)
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{
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sh_audio->channels=sh_audio->wf->nChannels;
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sh_audio->samplerate=sh_audio->wf->nSamplesPerSec;
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sh_audio->i_bps = (sh_audio->channels * 22050) / 2;
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return 1;
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}
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static int preinit(sh_audio_t *sh_audio)
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{
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/* minsize was stored in wf->nBlockAlign by the RoQ demuxer */
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sh_audio->audio_out_minsize=sh_audio->wf->nBlockAlign;
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sh_audio->context = roq_decode_audio_init();
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return 1;
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}
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static void uninit(sh_audio_t *sh)
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{
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}
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static int control(sh_audio_t *sh,int cmd,void* arg, ...)
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{
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// TODO!!!
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return CONTROL_UNKNOWN;
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}
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static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
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{
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static unsigned char *ibuf = NULL;
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unsigned char header_data[6];
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int read_len;
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// TODO!! FIXME!!!
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if (!ibuf) ibuf = (unsigned char *)malloc(sh_audio->audio_out_minsize / 2);
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/* figure out how much data to read */
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if (demux_read_data(sh_audio->ds, header_data, 6) != 6) return -1; /* EOF */
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read_len = (header_data[5] << 24) | (header_data[4] << 16) |
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(header_data[3] << 8) | header_data[2];
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read_len += 2; /* 16-bit arguments */
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if (demux_read_data(sh_audio->ds, ibuf, read_len) != read_len) return -1;
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return 2 * roq_decode_audio((unsigned short *)buf, ibuf,
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read_len, sh_audio->channels, sh_audio->context);
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}
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