diff options
Diffstat (limited to 'libmpcodecs/ad_pcm.c')
-rw-r--r-- | libmpcodecs/ad_pcm.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/libmpcodecs/ad_pcm.c b/libmpcodecs/ad_pcm.c deleted file mode 100644 index 9ff4d6a90c..0000000000 --- a/libmpcodecs/ad_pcm.c +++ /dev/null @@ -1,214 +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 "talloc.h" -#include "config.h" -#include "ad_internal.h" -#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", - "" -}; - -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; - 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; -} |