static muxer_stream_t* rawaudiofile_new_stream(muxer_t *muxer,int type){ muxer_stream_t* s; if (!muxer) return NULL; if(type==MUXER_TYPE_AUDIO && muxer->avih.dwStreams>=1){ mp_msg(MSGT_MUXER, MSGL_ERR, "%s %s", mp_gtext("Too many streams!"), mp_gtext("Rawaudio muxer supports only one audio stream!\n")); return NULL; } s=malloc(sizeof(muxer_stream_t)); memset(s,0,sizeof(muxer_stream_t)); if(!s) return NULL; // no mem!? muxer->streams[muxer->avih.dwStreams]=s; s->type=type; s->id=muxer->avih.dwStreams; s->timer=0.0; s->size=0; s->muxer=muxer; switch(type){ case MUXER_TYPE_AUDIO: s->ckid=mmioFOURCC(('0'+s->id/10),('0'+(s->id%10)),'d','c'); s->h.fccType=streamtypeAUDIO; muxer->avih.dwStreams++; break; case MUXER_TYPE_VIDEO: mp_tmsg(MSGT_MUXER,MSGL_WARN,"Ignoring video stream!\n"); s->ckid=mmioFOURCC(('0'+s->id/10),('0'+(s->id%10)),'d','c'); s->h.fccType=streamtypeAUDIO; break; default: mp_tmsg(MSGT_MUXER,MSGL_ERR,"Warning, unknown stream type: %d\n",type); return NULL; } return s; }
int demuxer_add_chapter(demuxer_t *demuxer, struct bstr name, uint64_t start, uint64_t end) { if (!(demuxer->num_chapters % 32)) demuxer->chapters = talloc_realloc(demuxer, demuxer->chapters, struct demux_chapter, demuxer->num_chapters + 32); demuxer->chapters[demuxer->num_chapters].start = start; demuxer->chapters[demuxer->num_chapters].end = end; demuxer->chapters[demuxer->num_chapters].name = name.len ? talloc_strndup(demuxer->chapters, name.start, name.len) : talloc_strdup(demuxer->chapters, mp_gtext("unknown")); return demuxer->num_chapters++; }
static demuxer_t* demux_open_avi(demuxer_t* demuxer){ demux_stream_t *d_audio=demuxer->audio; demux_stream_t *d_video=demuxer->video; sh_audio_t *sh_audio=NULL; sh_video_t *sh_video=NULL; avi_priv_t* priv=calloc(1, sizeof(avi_priv_t)); demuxer->priv=(void*)priv; //---- AVI header: read_avi_header(demuxer,(demuxer->stream->flags & MP_STREAM_SEEK_BW)?index_mode:-2); if(demuxer->audio->id>=0 && !demuxer->a_streams[demuxer->audio->id]){ mp_tmsg(MSGT_DEMUX,MSGL_WARN,"AVI: invalid audio stream ID: %d - ignoring (nosound)\n",demuxer->audio->id); demuxer->audio->id=-2; // disabled } if(demuxer->video->id>=0 && !demuxer->v_streams[demuxer->video->id]){ mp_tmsg(MSGT_DEMUX,MSGL_WARN,"AVI: invalid video stream ID: %d - ignoring (using default)\n",demuxer->video->id); demuxer->video->id=-1; // autodetect } stream_reset(demuxer->stream); stream_seek(demuxer->stream,demuxer->movi_start); if(priv->idx_size>1){ // decide index format: #if 1 if((AVI_IDX_OFFSET(&((AVIINDEXENTRY *)priv->idx)[0])<demuxer->movi_start || AVI_IDX_OFFSET(&((AVIINDEXENTRY *)priv->idx)[1])<demuxer->movi_start )&& !priv->isodml) priv->idx_offset=demuxer->movi_start-4; #else if(AVI_IDX_OFFSET(&((AVIINDEXENTRY *)priv->idx)[0])<demuxer->movi_start) priv->idx_offset=demuxer->movi_start-4; #endif mp_msg(MSGT_DEMUX,MSGL_V,"AVI index offset: 0x%X (movi=0x%X idx0=0x%X idx1=0x%X)\n", (int)priv->idx_offset,(int)demuxer->movi_start, (int)((AVIINDEXENTRY *)priv->idx)[0].dwChunkOffset, (int)((AVIINDEXENTRY *)priv->idx)[1].dwChunkOffset); } if(priv->idx_size>0){ // check that file is non-interleaved: int i; off_t a_pos=-1; off_t v_pos=-1; for(i=0;i<priv->idx_size;i++){ AVIINDEXENTRY* idx=&((AVIINDEXENTRY *)priv->idx)[i]; demux_stream_t* ds=demux_avi_select_stream(demuxer,idx->ckid); off_t pos = priv->idx_offset + AVI_IDX_OFFSET(idx); if(a_pos==-1 && ds==demuxer->audio){ a_pos=pos; if(v_pos!=-1) break; } if(v_pos==-1 && ds==demuxer->video){ v_pos=pos; if(a_pos!=-1) break; } } if(v_pos==-1){ mp_msg(MSGT_DEMUX, MSGL_ERR, "AVI_NI: %s", mp_gtext("No video stream found.\n")); return NULL; } if(a_pos==-1){ d_audio->sh=sh_audio=NULL; } else { if(force_ni || abs(a_pos-v_pos)>0x100000){ // distance > 1MB mp_tmsg(MSGT_DEMUX,MSGL_INFO,"%s NON-INTERLEAVED AVI file format.\n",force_ni?"Forced":"Detected"); demuxer->type=DEMUXER_TYPE_AVI_NI; // HACK!!!! demuxer->desc=&demuxer_desc_avi_ni; // HACK!!!! pts_from_bps=1; // force BPS sync! } } } else { // no index if(force_ni){ mp_tmsg(MSGT_DEMUX,MSGL_INFO,"Using NON-INTERLEAVED broken AVI file format.\n"); demuxer->type=DEMUXER_TYPE_AVI_NINI; // HACK!!!! demuxer->desc=&demuxer_desc_avi_nini; // HACK!!!! priv->idx_pos_a= priv->idx_pos_v=demuxer->movi_start; pts_from_bps=1; // force BPS sync! } demuxer->seekable=0; } if(!ds_fill_buffer(d_video)){ mp_msg(MSGT_DEMUX, MSGL_ERR, "AVI: %s", mp_gtext("Missing video stream!? Contact the author, " "it may be a bug :(\n")); return NULL; } sh_video=d_video->sh;sh_video->ds=d_video; if(d_audio->id!=-2){ mp_msg(MSGT_DEMUX,MSGL_V,"AVI: Searching for audio stream (id:%d)\n",d_audio->id); if(!priv->audio_streams || !ds_fill_buffer(d_audio)){ mp_msg(MSGT_DEMUX, MSGL_INFO, "AVI: %s", mp_gtext("No audio stream found -> no sound.\n")); d_audio->sh=sh_audio=NULL; } else { sh_audio=d_audio->sh;sh_audio->ds=d_audio; } } // calculating audio/video bitrate: if(priv->idx_size>0){ // we have index, let's count 'em! AVIINDEXENTRY *idx = priv->idx; int64_t vsize=0; int64_t asize=0; size_t vsamples=0; size_t asamples=0; int i; for(i=0;i<priv->idx_size;i++){ int id=avi_stream_id(idx[i].ckid); unsigned len=idx[i].dwChunkLength; if(sh_video->ds->id == id) { vsize+=len; ++vsamples; } else if(sh_audio && sh_audio->ds->id == id) { asize+=len; asamples+=(len+priv->audio_block_size-1)/priv->audio_block_size; } } mp_msg(MSGT_DEMUX,MSGL_V,"AVI video size=%"PRId64" (%u) audio size=%"PRId64" (%u)\n",vsize,vsamples,asize,asamples); priv->numberofframes=vsamples; sh_video->i_bps=((float)vsize/(float)vsamples)*(float)sh_video->video.dwRate/(float)sh_video->video.dwScale; if(sh_audio) sh_audio->i_bps=((float)asize/(float)asamples)*(float)sh_audio->audio.dwRate/(float)sh_audio->audio.dwScale; } else { // guessing, results may be inaccurate: int64_t vsize; int64_t asize=0; if((priv->numberofframes=sh_video->video.dwLength)<=1) // bad video header, try to get number of frames from audio if(sh_audio && sh_audio->wf->nAvgBytesPerSec) priv->numberofframes=sh_video->fps*sh_audio->audio.dwLength/sh_audio->audio.dwRate*sh_audio->audio.dwScale; if(priv->numberofframes<=1){ mp_tmsg(MSGT_SEEK,MSGL_WARN,"Could not determine number of frames (for absolute seek).\n"); priv->numberofframes=0; } if(sh_audio){ if(sh_audio->wf->nAvgBytesPerSec && sh_audio->audio.dwSampleSize!=1){ asize=(float)sh_audio->wf->nAvgBytesPerSec*sh_audio->audio.dwLength*sh_audio->audio.dwScale/sh_audio->audio.dwRate; } else { asize=sh_audio->audio.dwLength; sh_audio->i_bps=(float)asize/(sh_video->frametime*priv->numberofframes); } } vsize=demuxer->movi_end-demuxer->movi_start-asize-8*priv->numberofframes; mp_msg(MSGT_DEMUX,MSGL_V,"AVI video size=%"PRId64" (%u) audio size=%"PRId64"\n",vsize,priv->numberofframes,asize); sh_video->i_bps=(float)vsize/(sh_video->frametime*priv->numberofframes); } return demuxer; }
static int open_s(stream_t *stream,int mode, void* opts, int* file_format) { struct stream_priv_s* p = opts; int ret,ret2,f,sect,tmp; mp_vcd_priv_t* vcd; #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) int bsize = VCD_SECTOR_SIZE; #endif #if defined(__MINGW32__) || defined(__CYGWIN__) HANDLE hd; char device[] = "\\\\.\\?:"; #endif #if defined(__OS2__) char device[] = "X:"; HFILE hcd; ULONG ulAction; ULONG rc; #endif if(mode != STREAM_READ #if defined(__MINGW32__) || defined(__CYGWIN__) || GetVersion() > 0x80000000 // Win9x #endif ) { m_struct_free(&stream_opts,opts); return STREAM_UNSUPPORTED; } if (!p->device) { if(cdrom_device) p->device = strdup(cdrom_device); else p->device = strdup(DEFAULT_CDROM_DEVICE); } #if defined(__MINGW32__) || defined(__CYGWIN__) device[4] = p->device[0]; /* open() can't be used for devices so do it the complicated way */ hd = CreateFile(device, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL); f = _open_osfhandle((long)hd, _O_RDONLY); #elif defined(__OS2__) device[0] = p->device[0]; rc = DosOpen(device, &hcd, &ulAction, 0, FILE_NORMAL, OPEN_ACTION_OPEN_IF_EXISTS | OPEN_ACTION_FAIL_IF_NEW, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE | OPEN_FLAGS_DASD, NULL); f = rc ? -1 : hcd; #else f=open(p->device,O_RDONLY); #endif if(f<0){ mp_tmsg(MSGT_OPEN,MSGL_ERR,"CD-ROM Device '%s' not found.\n",p->device); m_struct_free(&stream_opts,opts); return STREAM_ERROR; } vcd = vcd_read_toc(f); if(!vcd) { mp_msg(MSGT_OPEN,MSGL_ERR,"Failed to get cd toc\n"); close(f); m_struct_free(&stream_opts,opts); return STREAM_ERROR; } ret2=vcd_get_track_end(vcd,p->track); if(ret2<0){ mp_msg(MSGT_OPEN, MSGL_ERR, "%s (get)\n", mp_gtext("Error selecting VCD track.")); close(f); free(vcd); m_struct_free(&stream_opts,opts); return STREAM_ERROR; } ret=vcd_seek_to_track(vcd,p->track); if(ret<0){ mp_msg(MSGT_OPEN, MSGL_ERR, "%s (seek)\n", mp_gtext("Error selecting VCD track.")); close(f); free(vcd); m_struct_free(&stream_opts,opts); return STREAM_ERROR; } /* search forward up to at most 3 seconds to skip leading margin */ sect = ret / VCD_SECTOR_DATA; for (tmp = sect; tmp < sect + 3 * 75; tmp++) { char mem[VCD_SECTOR_DATA]; //since MPEG packs are block-aligned we stop discarding sectors if they are non-null if (vcd_read(vcd, mem) != VCD_SECTOR_DATA || mem[2] || mem[3]) break; } mp_msg(MSGT_OPEN, MSGL_DBG2, "%d leading sectors skipped\n", tmp - sect); vcd_set_msf(vcd, tmp); ret = tmp * VCD_SECTOR_DATA; mp_msg(MSGT_OPEN,MSGL_V,"VCD start byte position: 0x%X end: 0x%X\n",ret,ret2); #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) if (ioctl (f, CDRIOCSETBLOCKSIZE, &bsize) == -1) { mp_msg(MSGT_OPEN,MSGL_WARN,"Error in CDRIOCSETBLOCKSIZE"); } #endif stream->fd = f; stream->type = STREAMTYPE_VCD; stream->sector_size = VCD_SECTOR_DATA; stream->start_pos=ret; stream->end_pos=ret2; stream->priv = vcd; stream->fill_buffer = fill_buffer; stream->seek = seek; stream->close = close_s; *file_format = DEMUXER_TYPE_MPEG_PS; m_struct_free(&stream_opts,opts); return STREAM_OK; }
// Initialization and runtime control static int control(struct af_instance* af, int cmd, void* arg) { af_scaletempo_t* s = af->setup; switch(cmd){ case AF_CONTROL_REINIT:{ struct mp_audio* data = (struct mp_audio*)arg; float srate = data->rate / 1000; int nch = data->nch; int bps; int use_int = 0; int frames_stride, frames_overlap; int i, j; mp_msg(MSGT_AFILTER, MSGL_V, "[scaletempo] %.3f speed * %.3f scale_nominal = %.3f\n", s->speed, s->scale_nominal, s->scale); mp_audio_copy_config(af->data, data); if (s->scale == 1.0) { if (s->speed_tempo && s->speed_pitch) return AF_DETACH; af->delay = 0; af->mul = 1; return af_test_output(af, data); } if (data->format == AF_FORMAT_S16_NE) { use_int = 1; } else { mp_audio_set_format(af->data, AF_FORMAT_FLOAT_NE); } bps = af->data->bps; frames_stride = srate * s->ms_stride; s->bytes_stride = frames_stride * bps * nch; s->bytes_stride_scaled = s->scale * s->bytes_stride; s->frames_stride_scaled = s->scale * frames_stride; s->frames_stride_error = 0; af->mul = (double)s->bytes_stride / s->bytes_stride_scaled; af->delay = 0; frames_overlap = frames_stride * s->percent_overlap; if (frames_overlap <= 0) { s->bytes_standing = s->bytes_stride; s->samples_standing = s->bytes_standing / bps; s->output_overlap = NULL; s->bytes_overlap = 0; } else { s->samples_overlap = frames_overlap * nch; s->bytes_overlap = frames_overlap * nch * bps; s->bytes_standing = s->bytes_stride - s->bytes_overlap; s->samples_standing = s->bytes_standing / bps; s->buf_overlap = realloc(s->buf_overlap, s->bytes_overlap); s->table_blend = realloc(s->table_blend, s->bytes_overlap * 4); if(!s->buf_overlap || !s->table_blend) { mp_msg(MSGT_AFILTER, MSGL_FATAL, "[scaletempo] Out of memory\n"); return AF_ERROR; } memset(s->buf_overlap, 0, s->bytes_overlap); if (use_int) { int32_t* pb = s->table_blend; int64_t blend = 0; for (i=0; i<frames_overlap; i++) { int32_t v = blend / frames_overlap; for (j=0; j<nch; j++) { *pb++ = v; } blend += 65536; // 2^16 } s->output_overlap = output_overlap_s16; } else { float* pb = s->table_blend; for (i=0; i<frames_overlap; i++) { float v = i / (float)frames_overlap; for (j=0; j<nch; j++) { *pb++ = v; } } s->output_overlap = output_overlap_float; } } s->frames_search = (frames_overlap > 1) ? srate * s->ms_search : 0; if (s->frames_search <= 0) { s->best_overlap_offset = NULL; } else { if (use_int) { int64_t t = frames_overlap; int32_t n = 8589934588LL / (t * t); // 4 * (2^31 - 1) / t^2 int32_t* pw; s->buf_pre_corr = realloc(s->buf_pre_corr, s->bytes_overlap * 2 + UNROLL_PADDING); s->table_window = realloc(s->table_window, s->bytes_overlap * 2 - nch * bps * 2); if(!s->buf_pre_corr || !s->table_window) { mp_msg(MSGT_AFILTER, MSGL_FATAL, "[scaletempo] Out of memory\n"); return AF_ERROR; } memset((char *)s->buf_pre_corr + s->bytes_overlap * 2, 0, UNROLL_PADDING); pw = s->table_window; for (i=1; i<frames_overlap; i++) { int32_t v = ( i * (t - i) * n ) >> 15; for (j=0; j<nch; j++) { *pw++ = v; } } s->best_overlap_offset = best_overlap_offset_s16; } else { float* pw; s->buf_pre_corr = realloc(s->buf_pre_corr, s->bytes_overlap); s->table_window = realloc(s->table_window, s->bytes_overlap - nch * bps); if(!s->buf_pre_corr || !s->table_window) { mp_msg(MSGT_AFILTER, MSGL_FATAL, "[scaletempo] Out of memory\n"); return AF_ERROR; } pw = s->table_window; for (i=1; i<frames_overlap; i++) { float v = i * (frames_overlap - i); for (j=0; j<nch; j++) { *pw++ = v; } } s->best_overlap_offset = best_overlap_offset_float; } } s->bytes_per_frame = bps * nch; s->num_channels = nch; s->bytes_queue = (s->frames_search + frames_stride + frames_overlap) * bps * nch; s->buf_queue = realloc(s->buf_queue, s->bytes_queue + UNROLL_PADDING); if(!s->buf_queue) { mp_msg(MSGT_AFILTER, MSGL_FATAL, "[scaletempo] Out of memory\n"); return AF_ERROR; } s->bytes_queued = 0; s->bytes_to_slide = 0; mp_msg (MSGT_AFILTER, MSGL_DBG2, "[scaletempo] " "%.2f stride_in, %i stride_out, %i standing, " "%i overlap, %i search, %i queue, %s mode\n", s->frames_stride_scaled, (int)(s->bytes_stride / nch / bps), (int)(s->bytes_standing / nch / bps), (int)(s->bytes_overlap / nch / bps), s->frames_search, (int)(s->bytes_queue / nch / bps), (use_int?"s16":"float")); return af_test_output(af, (struct mp_audio*)arg); } case AF_CONTROL_PLAYBACK_SPEED | AF_CONTROL_SET:{ if (s->speed_tempo) { if (s->speed_pitch) { break; } s->speed = *(float*)arg; s->scale = s->speed * s->scale_nominal; } else { if (s->speed_pitch) { s->speed = 1 / *(float*)arg; s->scale = s->speed * s->scale_nominal; break; } } return AF_OK; } case AF_CONTROL_SCALETEMPO_AMOUNT | AF_CONTROL_SET:{ s->scale = *(float*)arg; s->scale = s->speed * s->scale_nominal; return AF_OK; } case AF_CONTROL_SCALETEMPO_AMOUNT | AF_CONTROL_GET: *(float*)arg = s->scale; return AF_OK; case AF_CONTROL_COMMAND_LINE:{ strarg_t speed = {}; opt_t subopts[] = { {"scale", OPT_ARG_FLOAT, &s->scale_nominal, NULL}, {"stride", OPT_ARG_FLOAT, &s->ms_stride, NULL}, {"overlap", OPT_ARG_FLOAT, &s->percent_overlap, NULL}, {"search", OPT_ARG_FLOAT, &s->ms_search, NULL}, {"speed", OPT_ARG_STR, &speed, NULL}, {NULL}, }; if (subopt_parse(arg, subopts) != 0) { return AF_ERROR; } if (s->scale_nominal <= 0) { mp_msg(MSGT_AFILTER, MSGL_ERR, "[scaletempo] %s: %s: scale > 0\n", mp_gtext("error parsing command line"), mp_gtext("value out of range")); return AF_ERROR; } if (s->ms_stride <= 0) { mp_msg(MSGT_AFILTER, MSGL_ERR, "[scaletempo] %s: %s: stride > 0\n", mp_gtext("error parsing command line"), mp_gtext("value out of range")); return AF_ERROR; } if (s->percent_overlap < 0 || s->percent_overlap > 1) { mp_msg(MSGT_AFILTER, MSGL_ERR, "[scaletempo] %s: %s: 0 <= overlap <= 1\n", mp_gtext("error parsing command line"), mp_gtext("value out of range")); return AF_ERROR; } if (s->ms_search < 0) { mp_msg(MSGT_AFILTER, MSGL_ERR, "[scaletempo] %s: %s: search >= 0\n", mp_gtext("error parsing command line"), mp_gtext("value out of range")); return AF_ERROR; } if (speed.len > 0) { if (strcmp(speed.str, "pitch") == 0) { s->speed_tempo = 0; s->speed_pitch = 1; } else if (strcmp(speed.str, "tempo") == 0) { s->speed_tempo = 1; s->speed_pitch = 0; } else if (strcmp(speed.str, "none") == 0) { s->speed_tempo = 0; s->speed_pitch = 0; } else if (strcmp(speed.str, "both") == 0) { s->speed_tempo = 1; s->speed_pitch = 1; } else { mp_msg(MSGT_AFILTER, MSGL_ERR, "[scaletempo] %s: %s: speed=[pitch|tempo|none|both]\n", mp_gtext("error parsing command line"), mp_gtext("value out of range")); return AF_ERROR; } } s->scale = s->speed * s->scale_nominal; mp_msg(MSGT_AFILTER, MSGL_DBG2, "[scaletempo] %6.3f scale, %6.2f stride, %6.2f overlap, %6.2f search, speed = %s\n", s->scale_nominal, s->ms_stride, s->percent_overlap, s->ms_search, (s->speed_tempo?(s->speed_pitch?"tempo and speed":"tempo"):(s->speed_pitch?"pitch":"none"))); return AF_OK; } }