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-rw-r--r--audio/decode/ad_pcm.c220
1 files changed, 0 insertions, 220 deletions
diff --git a/audio/decode/ad_pcm.c b/audio/decode/ad_pcm.c
deleted file mode 100644
index 01500b1274..0000000000
--- a/audio/decode/ad_pcm.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdbool.h>
-
-#include <libavutil/common.h>
-
-#include "talloc.h"
-#include "config.h"
-#include "ad_internal.h"
-#include "audio/format.h"
-#include "audio/reorder_ch.h"
-
-static const ad_info_t info = {
- "Uncompressed PCM audio decoder",
- "pcm",
- "Nick Kurshev",
- "A'rpi",
- ""
-};
-
-struct ad_pcm_context {
- unsigned char *buffer;
- int buffer_pos;
- int buffer_len;
- int buffer_size;
-};
-
-LIBAD_EXTERN(pcm)
-
-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: */
- 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 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;
- case 0x736F7774: // 'twos'
- 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;
- case 0x32336c66: // 'fl32', bigendian float32
- case 0x32334C46: // 'FL32', bigendian float32 in aiff
- sh_audio->sample_format = AF_FORMAT_FLOAT_BE;
- sh_audio->samplesize = 4;
- break;
- case 0x666c3332: // '23lf', little endian float32, MPlayer internal fourCC
- case 0x6D63706C: // 'lpcm'
- 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;
- break;
- case 0x666c3634: // '46lf', little endian float64, MPlayer internal fourCC
- sh_audio->sample_format=AF_FORMAT_FLOAT_LE;
- sh_audio->samplesize=8;
- break;*/
- case 0x34326e69: // 'in24', bigendian int24
- 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;
- case 0x32336e69: // 'in32', bigendian int32
- 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;
- case MKTAG('M', 'P', 'a', 'f'):
- sh_audio->sample_format = h->wFormatTag;
- sh_audio->samplesize = (af_fmt2bits(sh_audio->sample_format) + 7) / 8;
- 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)
-{
- sh->audio_out_minsize = 2048;
- return 1;
-}
-
-static void uninit(sh_audio_t *sh)
-{
- talloc_free(sh->context);
-}
-
-static int control(sh_audio_t *sh, int cmd, void *arg, ...)
-{
- struct ad_pcm_context *ctx = sh->context;
- int skip;
- switch (cmd) {
- case ADCTRL_RESYNC_STREAM:
- ctx->buffer_len = 0;
- return true;
- 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;
-}
-
-static int decode_audio(sh_audio_t *sh_audio, unsigned char *buf, int minlen,
- int maxlen)
-{
- int unitsize = sh_audio->channels * sh_audio->samplesize;
- minlen = (minlen + unitsize - 1) / unitsize * unitsize;
- if (minlen > maxlen)
- // if someone needs hundreds of channels adjust audio_out_minsize
- // based on channels in preinit()
- return -1;
-
- int len = 0;
- struct ad_pcm_context *ctx = sh_audio->context;
- while (len < minlen) {
- if (ctx->buffer_len - ctx->buffer_pos <= 0) {
- double pts;
- unsigned char *ptr;
- int plen = ds_get_packet_pts(sh_audio->ds, &ptr, &pts);
- if (plen < 0)
- break;
- if (ctx->buffer_size < plen) {
- talloc_free(ctx->buffer);
- ctx->buffer = talloc_size(ctx, plen);
- ctx->buffer_size = plen;
- }
- memcpy(ctx->buffer, ptr, plen);
- ctx->buffer_len = plen;
- ctx->buffer_pos = 0;
- if (pts != MP_NOPTS_VALUE) {
- sh_audio->pts = pts;
- sh_audio->pts_bytes = 0;
- }
- }
- int from_stored = ctx->buffer_len - ctx->buffer_pos;
- if (from_stored > minlen - len)
- from_stored = minlen - len;
- memcpy(buf + len, ctx->buffer + ctx->buffer_pos, from_stored);
- ctx->buffer_pos += from_stored;
- sh_audio->pts_bytes += from_stored;
- len += from_stored;
- }
- if (len % unitsize) {
- mp_msg(MSGT_DECAUDIO, MSGL_WARN, "[ad_pcm] discarding partial sample "
- "at end\n");
- len -= len % unitsize;
- }
- 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 2024-04-19 07:38:24 +0000