mirror of
https://github.com/mpv-player/mpv
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494 lines
19 KiB
C
494 lines
19 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include "m_option.h"
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#include "mp_msg.h"
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#include "libmpdemux/aviheader.h"
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#include "libmpdemux/ms_hdr.h"
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#include "stream/stream.h"
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#include "libmpdemux/muxer.h"
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#include "ae_pcm.h"
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#include "libaf/af_format.h"
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#include "libmpdemux/mp3_hdr.h"
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#undef CDECL
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#include <lame/lame.h>
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lame_global_flags *lame;
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static int lame_param_quality=0; // best
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static int lame_param_algqual=5; // same as old default
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static int lame_param_vbr=vbr_default;
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static int lame_param_mode=-1; // unset
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static int lame_param_padding=-1; // unset
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static int lame_param_br=-1; // unset
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static int lame_param_ratio=-1; // unset
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static float lame_param_scale=-1; // unset
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static int lame_param_lowpassfreq = 0; //auto
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static int lame_param_highpassfreq = 0; //auto
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static int lame_param_free_format = 0; //disabled
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static int lame_param_br_min = 0; //not specified
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static int lame_param_br_max = 0; //not specified
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#ifdef CONFIG_MP3LAME_PRESET
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int lame_param_fast=0; // unset
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static char* lame_param_preset=NULL; // unset
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static int lame_presets_set( lame_t gfp, int fast, int cbr, const char* preset_name );
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#endif
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#define MEncoderMP3LameHelp _("\n\n"\
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" vbr=<0-4> variable bitrate method\n"\
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" 0: cbr (constant bitrate)\n"\
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" 1: mt (Mark Taylor VBR algorithm)\n"\
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" 2: rh (Robert Hegemann VBR algorithm - default)\n"\
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" 3: abr (average bitrate)\n"\
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" 4: mtrh (Mark Taylor Robert Hegemann VBR algorithm)\n"\
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"\n"\
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" abr average bitrate\n"\
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"\n"\
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" cbr constant bitrate\n"\
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" Also forces CBR mode encoding on subsequent ABR presets modes.\n"\
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"\n"\
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" br=<0-1024> specify bitrate in kBit (CBR and ABR only)\n"\
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"\n"\
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" q=<0-9> quality (0-highest, 9-lowest) (only for VBR)\n"\
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"\n"\
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" aq=<0-9> algorithmic quality (0-best/slowest, 9-worst/fastest)\n"\
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"\n"\
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" ratio=<1-100> compression ratio\n"\
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"\n"\
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" vol=<0-10> set audio input gain\n"\
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"\n"\
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" mode=<0-3> (default: auto)\n"\
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" 0: stereo\n"\
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" 1: joint-stereo\n"\
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" 2: dualchannel\n"\
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" 3: mono\n"\
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"\n"\
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" padding=<0-2>\n"\
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" 0: no\n"\
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" 1: all\n"\
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" 2: adjust\n"\
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"\n"\
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" fast Switch on faster encoding on subsequent VBR presets modes,\n"\
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" slightly lower quality and higher bitrates.\n"\
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"\n"\
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" preset=<value> Provide the highest possible quality settings.\n"\
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" medium: VBR encoding, good quality\n"\
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" (150-180 kbps bitrate range)\n"\
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" standard: VBR encoding, high quality\n"\
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" (170-210 kbps bitrate range)\n"\
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" extreme: VBR encoding, very high quality\n"\
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" (200-240 kbps bitrate range)\n"\
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" insane: CBR encoding, highest preset quality\n"\
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" (320 kbps bitrate)\n"\
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" <8-320>: ABR encoding at average given kbps bitrate.\n\n")
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const m_option_t lameopts_conf[] = {
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{"q", &lame_param_quality, CONF_TYPE_INT, CONF_RANGE, 0, 9, NULL},
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{"aq", &lame_param_algqual, CONF_TYPE_INT, CONF_RANGE, 0, 9, NULL},
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{"vbr", &lame_param_vbr, CONF_TYPE_INT, CONF_RANGE, 0, vbr_max_indicator, NULL},
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{"cbr", &lame_param_vbr, CONF_TYPE_FLAG, 0, 0, 0, NULL},
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{"abr", &lame_param_vbr, CONF_TYPE_FLAG, 0, 0, vbr_abr, NULL},
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{"mode", &lame_param_mode, CONF_TYPE_INT, CONF_RANGE, 0, MAX_INDICATOR, NULL},
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{"padding", &lame_param_padding, CONF_TYPE_INT, CONF_RANGE, 0, PAD_MAX_INDICATOR, NULL},
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{"br", &lame_param_br, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL},
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{"ratio", &lame_param_ratio, CONF_TYPE_INT, CONF_RANGE, 0, 100, NULL},
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{"vol", &lame_param_scale, CONF_TYPE_FLOAT, CONF_RANGE, 0, 10, NULL},
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{"lowpassfreq",&lame_param_lowpassfreq, CONF_TYPE_INT, CONF_RANGE, -1, 48000,0},
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{"highpassfreq",&lame_param_highpassfreq, CONF_TYPE_INT, CONF_RANGE, -1, 48000,0},
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{"nofree", &lame_param_free_format, CONF_TYPE_FLAG, 0, 0, 0, NULL},
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{"free", &lame_param_free_format, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"br_min", &lame_param_br_min, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL},
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{"br_max", &lame_param_br_max, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL},
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#ifdef CONFIG_MP3LAME_PRESET
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{"fast", &lame_param_fast, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"preset", &lame_param_preset, CONF_TYPE_STRING, 0, 0, 0, NULL},
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#else
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{"fast", "MPlayer was built without -lameopts fast support (requires libmp3lame >=3.92).\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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{"preset", "MPlayer was built without -lameopts preset support (requires libmp3lame >=3.92).\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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#endif
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{"help", MEncoderMP3LameHelp, CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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static int bind_lame(audio_encoder_t *encoder, muxer_stream_t *mux_a)
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{
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mp_tmsg(MSGT_MENCODER, MSGL_INFO, "MP3 audio selected.\n");
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mux_a->h.dwSampleSize=0; // VBR
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mux_a->h.dwRate=encoder->params.sample_rate;
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mux_a->h.dwScale=encoder->params.samples_per_frame; // samples/frame
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if(sizeof(MPEGLAYER3WAVEFORMAT)!=30) mp_tmsg(MSGT_MENCODER,MSGL_WARN,"sizeof(MPEGLAYER3WAVEFORMAT)==%d!=30, maybe broken C compiler?\n",sizeof(MPEGLAYER3WAVEFORMAT));
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mux_a->wf=malloc(sizeof(MPEGLAYER3WAVEFORMAT)); // should be 30
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mux_a->wf->wFormatTag=0x55; // MP3
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mux_a->wf->nChannels= (lame_param_mode<0) ? encoder->params.channels : ((lame_param_mode==3) ? 1 : 2);
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mux_a->wf->nSamplesPerSec=mux_a->h.dwRate;
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if(! lame_param_vbr)
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mux_a->wf->nAvgBytesPerSec=lame_param_br * 125;
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else
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mux_a->wf->nAvgBytesPerSec=192000/8; // FIXME!
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mux_a->wf->nBlockAlign=encoder->params.samples_per_frame; // required for l3codeca.acm + WMP 6.4
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mux_a->wf->wBitsPerSample=0; //16;
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// from NaNdub: (requires for l3codeca.acm)
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mux_a->wf->cbSize=12;
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((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->wID=1;
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((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->fdwFlags=2;
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((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nBlockSize=encoder->params.samples_per_frame; // ???
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((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nFramesPerBlock=1;
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((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nCodecDelay=0;
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encoder->input_format = AF_FORMAT_S16_NE;
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encoder->min_buffer_size = 4608;
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encoder->max_buffer_size = mux_a->h.dwRate * mux_a->wf->nChannels * 2;
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return 1;
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}
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#define min(a, b) ((a) <= (b) ? (a) : (b))
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static int get_frame_size(audio_encoder_t *encoder)
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{
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int sz;
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if(encoder->stream->buffer_len < 4)
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return 0;
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sz = mp_decode_mp3_header(encoder->stream->buffer);
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if(sz <= 0)
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return 0;
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return sz;
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}
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static int encode_lame(audio_encoder_t *encoder, uint8_t *dest, void *src, int len, int max_size)
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{
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int n = 0;
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if(encoder->params.channels == 1)
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n = lame_encode_buffer(lame, (short *)src, (short *)src, len/2, dest, max_size);
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else
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n = lame_encode_buffer_interleaved(lame,(short *)src, len/4, dest, max_size);
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return n < 0 ? 0 : n;
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}
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static int close_lame(audio_encoder_t *encoder)
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{
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return 1;
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}
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static void fixup(audio_encoder_t *encoder)
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{
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// fixup CBR mp3 audio header:
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if(!lame_param_vbr) {
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encoder->stream->h.dwSampleSize=1;
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if (encoder->stream->h.dwLength)
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((MPEGLAYER3WAVEFORMAT*)(encoder->stream->wf))->nBlockSize=
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(encoder->stream->size+(encoder->stream->h.dwLength>>1))/encoder->stream->h.dwLength;
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encoder->stream->h.dwLength=encoder->stream->size;
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encoder->stream->h.dwRate=encoder->stream->wf->nAvgBytesPerSec;
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encoder->stream->h.dwScale=1;
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encoder->stream->wf->nBlockAlign=1;
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mp_tmsg(MSGT_MENCODER, MSGL_V, "\n\nCBR audio: %d bytes/sec, %d bytes/block\n",
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encoder->stream->h.dwRate,((MPEGLAYER3WAVEFORMAT*)(encoder->stream->wf))->nBlockSize);
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}
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}
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int mpae_init_lame(audio_encoder_t *encoder)
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{
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encoder->params.bitrate = lame_param_br * 125;
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encoder->params.samples_per_frame = encoder->params.sample_rate < 32000 ? 576 : 1152;
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encoder->decode_buffer_size = 2304;
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lame=lame_init();
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lame_set_bWriteVbrTag(lame,0);
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lame_set_in_samplerate(lame,encoder->params.sample_rate);
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//lame_set_in_samplerate(lame,sh_audio->samplerate); // if resampling done by lame
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lame_set_num_channels(lame,encoder->params.channels);
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lame_set_out_samplerate(lame,encoder->params.sample_rate);
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lame_set_quality(lame,lame_param_algqual); // 0 = best q
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if(lame_param_free_format) lame_set_free_format(lame,1);
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if(lame_param_vbr){ // VBR:
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lame_set_VBR(lame,lame_param_vbr); // vbr mode
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lame_set_VBR_q(lame,lame_param_quality); // 0 = best vbr q 5=~128k
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if(lame_param_br>0) lame_set_VBR_mean_bitrate_kbps(lame,lame_param_br);
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if(lame_param_br_min>0) lame_set_VBR_min_bitrate_kbps(lame,lame_param_br_min);
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if(lame_param_br_max>0) lame_set_VBR_max_bitrate_kbps(lame,lame_param_br_max);
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} else { // CBR:
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if(lame_param_br>0) lame_set_brate(lame,lame_param_br);
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}
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if(lame_param_mode>=0) lame_set_mode(lame,lame_param_mode); // j-st
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if(lame_param_ratio>0) lame_set_compression_ratio(lame,lame_param_ratio);
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if(lame_param_scale>0) {
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mp_tmsg(MSGT_MENCODER, MSGL_V, "Setting audio input gain to %f.\n", lame_param_scale);
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lame_set_scale(lame,lame_param_scale);
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}
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if(lame_param_lowpassfreq>=-1) lame_set_lowpassfreq(lame,lame_param_lowpassfreq);
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if(lame_param_highpassfreq>=-1) lame_set_highpassfreq(lame,lame_param_highpassfreq);
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#ifdef CONFIG_MP3LAME_PRESET
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if(lame_param_preset != NULL) {
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mp_tmsg(MSGT_MENCODER, MSGL_V, "\npreset=%s\n\n",lame_param_preset);
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if(lame_presets_set(lame,lame_param_fast, (lame_param_vbr==0), lame_param_preset) < 0)
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return 0;
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}
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#endif
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if(lame_init_params(lame) == -1) {
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mp_tmsg(MSGT_MENCODER, MSGL_FATAL,
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"Cannot set LAME options, check bitrate/samplerate, some very low bitrates\n"\
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"(<32) need lower samplerates (i.e. -srate 8000).\n"\
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"If everything else fails, try a preset.");
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return 0;
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}
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if( mp_msg_test(MSGT_MENCODER,MSGL_V) ) {
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lame_print_config(lame);
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lame_print_internals(lame);
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}
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encoder->bind = bind_lame;
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encoder->get_frame_size = get_frame_size;
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encoder->encode = encode_lame;
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encoder->fixup = fixup;
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encoder->close = close_lame;
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return 1;
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}
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#ifdef CONFIG_MP3LAME_PRESET
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/* lame_presets_set
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taken out of presets_set in lame-3.93.1/frontend/parse.c and modified */
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static int lame_presets_set( lame_t gfp, int fast, int cbr, const char* preset_name )
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{
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int mono = 0;
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if (strcmp(preset_name, "help") == 0) {
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mp_tmsg(MSGT_MENCODER, MSGL_FATAL, "LAME version %s (%s)\n\n", get_lame_version(), get_lame_url());
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#define LamePresetsLongInfo _("\n"\
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"The preset switches are designed to provide the highest possible quality.\n"\
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"\n"\
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"They have for the most part been subjected to and tuned via rigorous double\n"\
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"blind listening tests to verify and achieve this objective.\n"\
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"\n"\
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"These are continually updated to coincide with the latest developments that\n"\
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"occur and as a result should provide you with nearly the best quality\n"\
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"currently possible from LAME.\n"\
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"\n"\
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"To activate these presets:\n"\
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"\n"\
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" For VBR modes (generally highest quality):\n"\
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"\n"\
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" \"preset=standard\" This preset should generally be transparent\n"\
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" to most people on most music and is already\n"\
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" quite high in quality.\n"\
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"\n"\
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" \"preset=extreme\" If you have extremely good hearing and similar\n"\
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" equipment, this preset will generally provide\n"\
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" slightly higher quality than the \"standard\"\n"\
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" mode.\n"\
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"\n"\
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" For CBR 320kbps (highest quality possible from the preset switches):\n"\
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"\n"\
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" \"preset=insane\" This preset will usually be overkill for most\n"\
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" people and most situations, but if you must\n"\
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" have the absolute highest quality with no\n"\
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" regard to filesize, this is the way to go.\n"\
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"\n"\
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" For ABR modes (high quality per given bitrate but not as high as VBR):\n"\
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"\n"\
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" \"preset=<kbps>\" Using this preset will usually give you good\n"\
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" quality at a specified bitrate. Depending on the\n"\
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" bitrate entered, this preset will determine the\n"\
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" optimal settings for that particular situation.\n"\
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" While this approach works, it is not nearly as\n"\
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" flexible as VBR, and usually will not attain the\n"\
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" same level of quality as VBR at higher bitrates.\n"\
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"\n"\
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"The following options are also available for the corresponding profiles:\n"\
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"\n"\
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" <fast> standard\n"\
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" <fast> extreme\n"\
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" insane\n"\
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" <cbr> (ABR Mode) - The ABR Mode is implied. To use it,\n"\
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" simply specify a bitrate. For example:\n"\
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" \"preset=185\" activates this\n"\
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" preset and uses 185 as an average kbps.\n"\
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"\n"\
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" \"fast\" - Enables the new fast VBR for a particular profile. The\n"\
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" disadvantage to the speed switch is that often times the\n"\
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" bitrate will be slightly higher than with the normal mode\n"\
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" and quality may be slightly lower also.\n"\
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" Warning: with the current version fast presets might result in too\n"\
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" high bitrate compared to regular presets.\n"\
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"\n"\
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" \"cbr\" - If you use the ABR mode (read above) with a significant\n"\
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" bitrate such as 80, 96, 112, 128, 160, 192, 224, 256, 320,\n"\
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" you can use the \"cbr\" option to force CBR mode encoding\n"\
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" instead of the standard abr mode. ABR does provide higher\n"\
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" quality but CBR may be useful in situations such as when\n"\
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" streaming an MP3 over the internet may be important.\n"\
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"\n"\
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" For example:\n"\
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"\n"\
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" \"-lameopts fast:preset=standard \"\n"\
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" or \"-lameopts cbr:preset=192 \"\n"\
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" or \"-lameopts preset=172 \"\n"\
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" or \"-lameopts preset=extreme \"\n"\
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"\n"\
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"\n"\
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"A few aliases are available for ABR mode:\n"\
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"phone => 16kbps/mono phon+/lw/mw-eu/sw => 24kbps/mono\n"\
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"mw-us => 40kbps/mono voice => 56kbps/mono\n"\
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"fm/radio/tape => 112kbps hifi => 160kbps\n"\
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"cd => 192kbps studio => 256kbps")
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mp_tmsg(MSGT_MENCODER, MSGL_FATAL, LamePresetsLongInfo);
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return -1;
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}
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//aliases for compatibility with old presets
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if (strcmp(preset_name, "phone") == 0) {
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preset_name = "16";
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mono = 1;
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}
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if ( (strcmp(preset_name, "phon+") == 0) ||
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(strcmp(preset_name, "lw") == 0) ||
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(strcmp(preset_name, "mw-eu") == 0) ||
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(strcmp(preset_name, "sw") == 0)) {
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preset_name = "24";
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mono = 1;
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}
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if (strcmp(preset_name, "mw-us") == 0) {
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preset_name = "40";
|
|
mono = 1;
|
|
}
|
|
if (strcmp(preset_name, "voice") == 0) {
|
|
preset_name = "56";
|
|
mono = 1;
|
|
}
|
|
if (strcmp(preset_name, "fm") == 0) {
|
|
preset_name = "112";
|
|
}
|
|
if ( (strcmp(preset_name, "radio") == 0) ||
|
|
(strcmp(preset_name, "tape") == 0)) {
|
|
preset_name = "112";
|
|
}
|
|
if (strcmp(preset_name, "hifi") == 0) {
|
|
preset_name = "160";
|
|
}
|
|
if (strcmp(preset_name, "cd") == 0) {
|
|
preset_name = "192";
|
|
}
|
|
if (strcmp(preset_name, "studio") == 0) {
|
|
preset_name = "256";
|
|
}
|
|
|
|
#ifdef CONFIG_MP3LAME_PRESET_MEDIUM
|
|
if (strcmp(preset_name, "medium") == 0) {
|
|
if (fast > 0)
|
|
lame_set_preset(gfp, MEDIUM_FAST);
|
|
else
|
|
lame_set_preset(gfp, MEDIUM);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
if (strcmp(preset_name, "standard") == 0) {
|
|
if (fast > 0)
|
|
lame_set_preset(gfp, STANDARD_FAST);
|
|
else
|
|
lame_set_preset(gfp, STANDARD);
|
|
|
|
return 0;
|
|
}
|
|
|
|
else if (strcmp(preset_name, "extreme") == 0){
|
|
if (fast > 0)
|
|
lame_set_preset(gfp, EXTREME_FAST);
|
|
else
|
|
lame_set_preset(gfp, EXTREME);
|
|
|
|
return 0;
|
|
}
|
|
|
|
else if (((strcmp(preset_name, "insane") == 0) ||
|
|
(strcmp(preset_name, "320" ) == 0)) && (fast < 1)) {
|
|
|
|
lame_set_preset(gfp, INSANE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Generic ABR Preset
|
|
if (((atoi(preset_name)) > 0) && (fast < 1)) {
|
|
if ((atoi(preset_name)) >= 8 && (atoi(preset_name)) <= 320){
|
|
lame_set_preset(gfp, atoi(preset_name));
|
|
|
|
if (cbr == 1 )
|
|
lame_set_VBR(gfp, vbr_off);
|
|
|
|
if (mono == 1 ) {
|
|
lame_set_mode(gfp, MONO);
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
else {
|
|
mp_tmsg(MSGT_MENCODER, MSGL_FATAL, "LAME version %s (%s)\n\n", get_lame_version(), get_lame_url());
|
|
mp_tmsg(MSGT_MENCODER, MSGL_FATAL,
|
|
"Error: The bitrate specified is out of the valid range for this preset.\n"\
|
|
"\n"\
|
|
"When using this mode you must enter a value between \"8\" and \"320\".\n"\
|
|
"\n"\
|
|
"For further information try: \"-lameopts preset=help\"\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
mp_tmsg(MSGT_MENCODER, MSGL_FATAL, "LAME version %s (%s)\n\n", get_lame_version(), get_lame_url());
|
|
#define InvalidLamePresetOptions _("Error: You did not enter a valid profile and/or options with preset.\n"\
|
|
"\n"\
|
|
"Available profiles are:\n"\
|
|
"\n"\
|
|
" <fast> standard\n"\
|
|
" <fast> extreme\n"\
|
|
" insane\n"\
|
|
" <cbr> (ABR Mode) - The ABR Mode is implied. To use it,\n"\
|
|
" simply specify a bitrate. For example:\n"\
|
|
" \"preset=185\" activates this\n"\
|
|
" preset and uses 185 as an average kbps.\n"\
|
|
"\n"\
|
|
" Some examples:\n"\
|
|
"\n"\
|
|
" \"-lameopts fast:preset=standard \"\n"\
|
|
" or \"-lameopts cbr:preset=192 \"\n"\
|
|
" or \"-lameopts preset=172 \"\n"\
|
|
" or \"-lameopts preset=extreme \"\n"\
|
|
"\n"\
|
|
"For further information try: \"-lameopts preset=help\"\n")
|
|
mp_tmsg(MSGT_MENCODER, MSGL_FATAL, InvalidLamePresetOptions);
|
|
return -1;
|
|
}
|
|
#endif
|