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-rw-r--r--libmpcodecs/ad_pcm.c237
1 files changed, 120 insertions, 117 deletions
diff --git a/libmpcodecs/ad_pcm.c b/libmpcodecs/ad_pcm.c
index a5a17e1a49..b4d8a3f348 100644
--- a/libmpcodecs/ad_pcm.c
+++ b/libmpcodecs/ad_pcm.c
@@ -26,13 +26,12 @@
#include "libaf/af_format.h"
#include "libaf/reorder_ch.h"
-static const ad_info_t info =
-{
- "Uncompressed PCM audio decoder",
- "pcm",
- "Nick Kurshev",
- "A'rpi",
- ""
+static const ad_info_t info = {
+ "Uncompressed PCM audio decoder",
+ "pcm",
+ "Nick Kurshev",
+ "A'rpi",
+ ""
};
struct ad_pcm_context {
@@ -42,53 +41,55 @@ struct ad_pcm_context {
LIBAD_EXTERN(pcm)
-static int init(sh_audio_t *sh_audio)
+static int init(sh_audio_t * sh_audio)
{
- WAVEFORMATEX *h=sh_audio->wf;
- if (!h)
- return 0;
- sh_audio->i_bps=h->nAvgBytesPerSec;
- sh_audio->channels=h->nChannels;
- sh_audio->samplerate=h->nSamplesPerSec;
- sh_audio->samplesize=(h->wBitsPerSample+7)/8;
- sh_audio->sample_format=AF_FORMAT_S16_LE; // default
- switch(sh_audio->format){ /* hardware formats: */
+ WAVEFORMATEX *h = sh_audio->wf;
+ if (!h)
+ return 0;
+ sh_audio->i_bps = h->nAvgBytesPerSec;
+ sh_audio->channels = h->nChannels;
+ sh_audio->samplerate = h->nSamplesPerSec;
+ sh_audio->samplesize = (h->wBitsPerSample + 7) / 8;
+ sh_audio->sample_format = AF_FORMAT_S16_LE; // default
+ switch (sh_audio->format) { /* hardware formats: */
case 0x0:
- case 0x1: // Microsoft PCM
- case 0xfffe: // Extended
- switch (sh_audio->samplesize) {
- case 1: sh_audio->sample_format=AF_FORMAT_U8; break;
- case 2: sh_audio->sample_format=AF_FORMAT_S16_LE; break;
- case 3: sh_audio->sample_format=AF_FORMAT_S24_LE; break;
- case 4: sh_audio->sample_format=AF_FORMAT_S32_LE; break;
- }
- break;
- case 0x3: // IEEE float
- sh_audio->sample_format=AF_FORMAT_FLOAT_LE;
- break;
- case 0x6: sh_audio->sample_format=AF_FORMAT_A_LAW;break;
- case 0x7: sh_audio->sample_format=AF_FORMAT_MU_LAW;break;
- case 0x11: sh_audio->sample_format=AF_FORMAT_IMA_ADPCM;break;
- case 0x50: sh_audio->sample_format=AF_FORMAT_MPEG2;break;
+ case 0x1: // Microsoft PCM
+ case 0xfffe: // Extended
+ switch (sh_audio->samplesize) {
+ case 1: sh_audio->sample_format = AF_FORMAT_U8; break;
+ case 2: sh_audio->sample_format = AF_FORMAT_S16_LE; break;
+ case 3: sh_audio->sample_format = AF_FORMAT_S24_LE; break;
+ case 4: sh_audio->sample_format = AF_FORMAT_S32_LE; break;
+ }
+ break;
+ case 0x3: // IEEE float
+ sh_audio->sample_format = AF_FORMAT_FLOAT_LE;
+ break;
+ case 0x6: sh_audio->sample_format = AF_FORMAT_A_LAW; break;
+ case 0x7: sh_audio->sample_format = AF_FORMAT_MU_LAW; break;
+ case 0x11: sh_audio->sample_format = AF_FORMAT_IMA_ADPCM; break;
+ case 0x50: sh_audio->sample_format = AF_FORMAT_MPEG2; break;
/* case 0x2000: sh_audio->sample_format=AFMT_AC3; */
case 0x20776172: // 'raw '
- sh_audio->sample_format=AF_FORMAT_S16_BE;
- if(sh_audio->samplesize==1) sh_audio->sample_format=AF_FORMAT_U8;
- break;
+ sh_audio->sample_format = AF_FORMAT_S16_BE;
+ if (sh_audio->samplesize == 1)
+ sh_audio->sample_format = AF_FORMAT_U8;
+ break;
case 0x736F7774: // 'twos'
- sh_audio->sample_format=AF_FORMAT_S16_BE;
- // intended fall-through
+ sh_audio->sample_format = AF_FORMAT_S16_BE;
+ // intended fall-through
case 0x74776F73: // 'sowt'
- if(sh_audio->samplesize==1) sh_audio->sample_format=AF_FORMAT_S8;
- break;
+ if (sh_audio->samplesize == 1)
+ sh_audio->sample_format = AF_FORMAT_S8;
+ break;
case 0x32336c66: // 'fl32', bigendian float32
- sh_audio->sample_format=AF_FORMAT_FLOAT_BE;
- sh_audio->samplesize=4;
- break;
+ sh_audio->sample_format = AF_FORMAT_FLOAT_BE;
+ sh_audio->samplesize = 4;
+ break;
case 0x666c3332: // '23lf', little endian float32, MPlayer internal fourCC
- sh_audio->sample_format=AF_FORMAT_FLOAT_LE;
- sh_audio->samplesize=4;
- break;
+ sh_audio->sample_format = AF_FORMAT_FLOAT_LE;
+ sh_audio->samplesize = 4;
+ break;
/* case 0x34366c66: // 'fl64', bigendian float64
sh_audio->sample_format=AF_FORMAT_FLOAT_BE;
sh_audio->samplesize=8;
@@ -98,93 +99,95 @@ static int init(sh_audio_t *sh_audio)
sh_audio->samplesize=8;
break;*/
case 0x34326e69: // 'in24', bigendian int24
- sh_audio->sample_format=AF_FORMAT_S24_BE;
- sh_audio->samplesize=3;
- break;
+ sh_audio->sample_format = AF_FORMAT_S24_BE;
+ sh_audio->samplesize = 3;
+ break;
case 0x696e3234: // '42ni', little endian int24, MPlayer internal fourCC
- sh_audio->sample_format=AF_FORMAT_S24_LE;
- sh_audio->samplesize=3;
- break;
+ sh_audio->sample_format = AF_FORMAT_S24_LE;
+ sh_audio->samplesize = 3;
+ break;
case 0x32336e69: // 'in32', bigendian int32
- sh_audio->sample_format=AF_FORMAT_S32_BE;
- sh_audio->samplesize=4;
- break;
+ sh_audio->sample_format = AF_FORMAT_S32_BE;
+ sh_audio->samplesize = 4;
+ break;
case 0x696e3332: // '23ni', little endian int32, MPlayer internal fourCC
- sh_audio->sample_format=AF_FORMAT_S32_LE;
- sh_audio->samplesize=4;
- break;
- default: if(sh_audio->samplesize!=2) sh_audio->sample_format=AF_FORMAT_U8;
- }
- if (!sh_audio->samplesize) // this would cause MPlayer to hang later
- sh_audio->samplesize = 2;
- sh_audio->context = talloc_zero(NULL, struct ad_pcm_context);
- return 1;
+ sh_audio->sample_format = AF_FORMAT_S32_LE;
+ sh_audio->samplesize = 4;
+ break;
+ default:
+ if (sh_audio->samplesize != 2)
+ sh_audio->sample_format = AF_FORMAT_U8;
+ }
+ if (!sh_audio->samplesize) // this would cause MPlayer to hang later
+ sh_audio->samplesize = 2;
+ sh_audio->context = talloc_zero(NULL, struct ad_pcm_context);
+ return 1;
}
-static int preinit(sh_audio_t *sh)
+static int preinit(sh_audio_t * sh)
{
- sh->audio_out_minsize=2048;
- return 1;
+ sh->audio_out_minsize = 2048;
+ return 1;
}
-static void uninit(sh_audio_t *sh)
+static void uninit(sh_audio_t * sh)
{
talloc_free(sh->context);
}
-static int control(sh_audio_t *sh,int cmd,void* arg, ...)
+static int control(sh_audio_t * sh, int cmd, void *arg, ...)
{
- int skip;
- switch(cmd)
- {
- case ADCTRL_SKIP_FRAME:
- skip=sh->i_bps/16;
- skip=skip&(~3);
- demux_read_data(sh->ds,NULL,skip);
- return CONTROL_TRUE;
+ int skip;
+ switch (cmd) {
+ case ADCTRL_SKIP_FRAME:
+ skip = sh->i_bps / 16;
+ skip = skip & (~3);
+ demux_read_data(sh->ds, NULL, skip);
+ return CONTROL_TRUE;
}
- return CONTROL_UNKNOWN;
+ return CONTROL_UNKNOWN;
}
-static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
+static int decode_audio(sh_audio_t * sh_audio, unsigned char *buf, int minlen,
+ int maxlen)
{
- unsigned len = sh_audio->channels*sh_audio->samplesize;
- minlen = (minlen + len - 1) / len * len;
- if (minlen > maxlen)
- // if someone needs hundreds of channels adjust audio_out_minsize
- // based on channels in preinit()
- return -1;
+ unsigned len = sh_audio->channels * sh_audio->samplesize;
+ minlen = (minlen + len - 1) / len * len;
+ if (minlen > maxlen)
+ // if someone needs hundreds of channels adjust audio_out_minsize
+ // based on channels in preinit()
+ return -1;
- len = 0;
- struct ad_pcm_context *ctx = sh_audio->context;
- while (len < minlen) {
- if (ctx->packet_len == 0) {
- double pts;
- int plen = ds_get_packet_pts(sh_audio->ds, &ctx->packet_ptr, &pts);
- if (plen < 0)
- break;
- ctx->packet_len = plen;
- if (pts != MP_NOPTS_VALUE) {
- sh_audio->pts = pts;
- sh_audio->pts_bytes = 0;
- }
- }
- int from_stored = ctx->packet_len;
- if (from_stored > minlen - len)
- from_stored = minlen - len;
- memcpy(buf + len, ctx->packet_ptr, from_stored);
- ctx->packet_len -= from_stored;
- ctx->packet_ptr += from_stored;
- sh_audio->pts_bytes += from_stored;
- len += from_stored;
- }
- if (len == 0)
- len = -1; // The loop above only exits at error/EOF
- if (len > 0 && sh_audio->channels >= 5) {
- reorder_channel_nch(buf, AF_CHANNEL_LAYOUT_WAVEEX_DEFAULT,
- AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT,
- sh_audio->channels,
- len / sh_audio->samplesize, sh_audio->samplesize);
- }
- return len;
+ len = 0;
+ struct ad_pcm_context *ctx = sh_audio->context;
+ while (len < minlen) {
+ if (ctx->packet_len == 0) {
+ double pts;
+ int plen = ds_get_packet_pts(sh_audio->ds, &ctx->packet_ptr, &pts);
+ if (plen < 0)
+ break;
+ ctx->packet_len = plen;
+ if (pts != MP_NOPTS_VALUE) {
+ sh_audio->pts = pts;
+ sh_audio->pts_bytes = 0;
+ }
+ }
+ int from_stored = ctx->packet_len;
+ if (from_stored > minlen - len)
+ from_stored = minlen - len;
+ memcpy(buf + len, ctx->packet_ptr, from_stored);
+ ctx->packet_len -= from_stored;
+ ctx->packet_ptr += from_stored;
+ sh_audio->pts_bytes += from_stored;
+ len += from_stored;
+ }
+ if (len == 0)
+ len = -1; // The loop above only exits at error/EOF
+ if (len > 0 && sh_audio->channels >= 5) {
+ reorder_channel_nch(buf, AF_CHANNEL_LAYOUT_WAVEEX_DEFAULT,
+ AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT,
+ sh_audio->channels, len / sh_audio->samplesize,
+ sh_audio->samplesize);
+ }
+ return len;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 18:44:11 +0000