diff options
Diffstat (limited to 'libmpcodecs/ae_lame.c')
| -rw-r--r-- | libmpcodecs/ae_lame.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/libmpcodecs/ae_lame.c b/libmpcodecs/ae_lame.c new file mode 100644 index 0000000000..e5f6067067 --- /dev/null +++ b/libmpcodecs/ae_lame.c @@ -0,0 +1,329 @@ +#include <stdio.h> +#include <stdlib.h> +#include <inttypes.h> +#include <string.h> +#include "m_option.h" +#include "../mp_msg.h" +#include "aviheader.h" +#include "ms_hdr.h" +#include "muxer.h" +#include "../help_mp.h" +#include "ae_pcm.h" +#include "../libaf/af_format.h" +#include "../libmpdemux/mp3_hdr.h" + +#undef CDECL +#include <lame/lame.h> + +lame_global_flags *lame; +static int lame_param_quality=0; // best +static int lame_param_algqual=5; // same as old default +static int lame_param_vbr=vbr_default; +static int lame_param_mode=-1; // unset +static int lame_param_padding=-1; // unset +static int lame_param_br=-1; // unset +static int lame_param_ratio=-1; // unset +static float lame_param_scale=-1; // unset +static int lame_param_lowpassfreq = 0; //auto +static int lame_param_highpassfreq = 0; //auto +static int lame_param_free_format = 0; //disabled +static int lame_param_br_min = 0; //not specified +static int lame_param_br_max = 0; //not specified + +#if HAVE_MP3LAME >= 392 +int lame_param_fast=0; // unset +static char* lame_param_preset=NULL; // unset +static int lame_presets_set( lame_t gfp, int fast, int cbr, const char* preset_name ); +static void lame_presets_longinfo_dm ( FILE* msgfp ); +#endif + + +m_option_t lameopts_conf[]={ + {"q", &lame_param_quality, CONF_TYPE_INT, CONF_RANGE, 0, 9, NULL}, + {"aq", &lame_param_algqual, CONF_TYPE_INT, CONF_RANGE, 0, 9, NULL}, + {"vbr", &lame_param_vbr, CONF_TYPE_INT, CONF_RANGE, 0, vbr_max_indicator, NULL}, + {"cbr", &lame_param_vbr, CONF_TYPE_FLAG, 0, 0, 0, NULL}, + {"abr", &lame_param_vbr, CONF_TYPE_FLAG, 0, 0, vbr_abr, NULL}, + {"mode", &lame_param_mode, CONF_TYPE_INT, CONF_RANGE, 0, MAX_INDICATOR, NULL}, + {"padding", &lame_param_padding, CONF_TYPE_INT, CONF_RANGE, 0, PAD_MAX_INDICATOR, NULL}, + {"br", &lame_param_br, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL}, + {"ratio", &lame_param_ratio, CONF_TYPE_INT, CONF_RANGE, 0, 100, NULL}, + {"vol", &lame_param_scale, CONF_TYPE_FLOAT, CONF_RANGE, 0, 10, NULL}, + {"lowpassfreq",&lame_param_lowpassfreq, CONF_TYPE_INT, CONF_RANGE, -1, 48000,0}, + {"highpassfreq",&lame_param_highpassfreq, CONF_TYPE_INT, CONF_RANGE, -1, 48000,0}, + {"nofree", &lame_param_free_format, CONF_TYPE_FLAG, 0, 0, 0, NULL}, + {"free", &lame_param_free_format, CONF_TYPE_FLAG, 0, 0, 1, NULL}, + {"br_min", &lame_param_br_min, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL}, + {"br_max", &lame_param_br_max, CONF_TYPE_INT, CONF_RANGE, 0, 1024, NULL}, +#if HAVE_MP3LAME >= 392 + {"fast", &lame_param_fast, CONF_TYPE_FLAG, 0, 0, 1, NULL}, + {"preset", &lame_param_preset, CONF_TYPE_STRING, 0, 0, 0, NULL}, +#else + {"fast", "MPlayer was built without -lameopts fast support (requires libmp3lame >=3.92).\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL}, + {"preset", "MPlayer was built without -lameopts preset support (requires libmp3lame >=3.92).\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL}, +#endif + {"help", MSGTR_MEncoderMP3LameHelp, CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL}, + {NULL, NULL, 0, 0, 0, 0, NULL} +}; + + +static int pass; +extern int verbose; + +static int bind_lame(audio_encoder_t *encoder, muxer_stream_t *mux_a) +{ + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_MP3AudioSelected); + mux_a->h.dwSampleSize=0; // VBR + mux_a->h.dwRate=encoder->params.sample_rate; + mux_a->h.dwScale=encoder->params.samples_per_frame; // samples/frame + if(sizeof(MPEGLAYER3WAVEFORMAT)!=30) mp_msg(MSGT_MENCODER,MSGL_WARN,MSGTR_MP3WaveFormatSizeNot30,sizeof(MPEGLAYER3WAVEFORMAT)); + mux_a->wf=malloc(sizeof(MPEGLAYER3WAVEFORMAT)); // should be 30 + mux_a->wf->wFormatTag=0x55; // MP3 + mux_a->wf->nChannels= (lame_param_mode<0) ? encoder->params.channels : ((lame_param_mode==3) ? 1 : 2); + mux_a->wf->nSamplesPerSec=mux_a->h.dwRate; + if(! lame_param_vbr) + mux_a->wf->nAvgBytesPerSec=lame_param_br * 125; + else + mux_a->wf->nAvgBytesPerSec=192000/8; // FIXME! + mux_a->wf->nBlockAlign=encoder->params.samples_per_frame; // required for l3codeca.acm + WMP 6.4 + mux_a->wf->wBitsPerSample=0; //16; + // from NaNdub: (requires for l3codeca.acm) + mux_a->wf->cbSize=12; + ((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->wID=1; + ((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->fdwFlags=2; + ((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nBlockSize=encoder->params.samples_per_frame; // ??? + ((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nFramesPerBlock=1; + ((MPEGLAYER3WAVEFORMAT*)(mux_a->wf))->nCodecDelay=0; + + encoder->input_format = AF_FORMAT_S16_LE; + encoder->min_buffer_size = 4608; + encoder->max_buffer_size = mux_a->h.dwRate * mux_a->wf->nChannels * 2; + + return 1; +} + +#define min(a, b) ((a) <= (b) ? (a) : (b)) + +static int get_frame_size(audio_encoder_t *encoder) +{ + int sz; + if(encoder->stream->buffer_len < 4) + return 0; + sz = mp_decode_mp3_header(encoder->stream->buffer); + if(sz <= 0) + return 0; + return sz; +} + +static int encode_lame(audio_encoder_t *encoder, uint8_t *dest, void *src, int len, int max_size) +{ + int n = 0; + if(encoder->params.channels == 1) + n = lame_encode_buffer(lame, (short *)src, (short *)src, len/2, dest, max_size); + else + n = lame_encode_buffer_interleaved(lame,(short *)src, len/4, dest, max_size); + + return (n < 0 ? 0 : n); +} + + +static int close_lame(audio_encoder_t *encoder) +{ + return 1; +} + +static void fixup(audio_encoder_t *encoder) +{ + // fixup CBR mp3 audio header: + if(!lame_param_vbr) { + encoder->stream->h.dwSampleSize=1; + ((MPEGLAYER3WAVEFORMAT*)(encoder->stream->wf))->nBlockSize= + (encoder->stream->size+(encoder->stream->h.dwLength>>1))/encoder->stream->h.dwLength; + encoder->stream->h.dwLength=encoder->stream->size; + encoder->stream->h.dwRate=encoder->stream->wf->nAvgBytesPerSec; + encoder->stream->h.dwScale=1; + encoder->stream->wf->nBlockAlign=1; + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_CBRAudioByterate, + encoder->stream->h.dwRate,((MPEGLAYER3WAVEFORMAT*)(encoder->stream->wf))->nBlockSize); + } +} + +int mpae_init_lame(audio_encoder_t *encoder) +{ + encoder->params.bitrate = lame_param_br * 125; + encoder->params.samples_per_frame = encoder->params.sample_rate < 32000 ? 576 : 1152; + encoder->decode_buffer_size = 2304; + + lame=lame_init(); + lame_set_bWriteVbrTag(lame,0); + lame_set_in_samplerate(lame,encoder->params.sample_rate); + //lame_set_in_samplerate(lame,sh_audio->samplerate); // if resampling done by lame + lame_set_num_channels(lame,encoder->params.channels); + lame_set_out_samplerate(lame,encoder->params.sample_rate); + lame_set_quality(lame,lame_param_algqual); // 0 = best q + if(lame_param_free_format) lame_set_free_format(lame,1); + if(lame_param_vbr){ // VBR: + lame_set_VBR(lame,lame_param_vbr); // vbr mode + lame_set_VBR_q(lame,lame_param_quality); // 0 = best vbr q 5=~128k + if(lame_param_br>0) lame_set_VBR_mean_bitrate_kbps(lame,lame_param_br); + if(lame_param_br_min>0) lame_set_VBR_min_bitrate_kbps(lame,lame_param_br_min); + if(lame_param_br_max>0) lame_set_VBR_max_bitrate_kbps(lame,lame_param_br_max); + } else { // CBR: + if(lame_param_br>0) lame_set_brate(lame,lame_param_br); + } + if(lame_param_mode>=0) lame_set_mode(lame,lame_param_mode); // j-st + if(lame_param_ratio>0) lame_set_compression_ratio(lame,lame_param_ratio); + if(lame_param_scale>0) { + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_SettingAudioInputGain, lame_param_scale); + lame_set_scale(lame,lame_param_scale); + } + if(lame_param_lowpassfreq>=-1) lame_set_lowpassfreq(lame,lame_param_lowpassfreq); + if(lame_param_highpassfreq>=-1) lame_set_highpassfreq(lame,lame_param_highpassfreq); +#if HAVE_MP3LAME >= 392 + if(lame_param_preset != NULL) { + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_LamePresetEquals,lame_param_preset); + if(lame_presets_set(lame,lame_param_fast, (lame_param_vbr==0), lame_param_preset) < 0) + return 0; + } +#endif + if(lame_init_params(lame) == -1) { + mp_msg(MSGT_MENCODER, MSGL_FATAL, MSGTR_LameCantInit); + return 0; + } + if(verbose>0) { + lame_print_config(lame); + lame_print_internals(lame); + } + + encoder->bind = bind_lame; + encoder->get_frame_size = get_frame_size; + encoder->encode = encode_lame; + encoder->fixup = fixup; + encoder->close = close_lame; + return 1; +} + +#if HAVE_MP3LAME >= 392 +/* lame_presets_set + taken out of presets_set in lame-3.93.1/frontend/parse.c and modified */ +static int lame_presets_set( lame_t gfp, int fast, int cbr, const char* preset_name ) +{ + int mono = 0; + + if (strcmp(preset_name, "help") == 0) { + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_LameVersion, get_lame_version(), get_lame_url()); + lame_presets_longinfo_dm(stderr); + return -1; + } + + //aliases for compatibility with old presets + + if (strcmp(preset_name, "phone") == 0) { + preset_name = "16"; + mono = 1; + } + if ( (strcmp(preset_name, "phon+") == 0) || + (strcmp(preset_name, "lw") == 0) || + (strcmp(preset_name, "mw-eu") == 0) || + (strcmp(preset_name, "sw") == 0)) { + preset_name = "24"; + mono = 1; + } + if (strcmp(preset_name, "mw-us") == 0) { + 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"; + } + +#if HAVE_MP3LAME >= 393 + 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_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_LameVersion, get_lame_version(), get_lame_url()); + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_InvalidBitrateForLamePreset); + return -1; + } + } + + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_LameVersion, get_lame_version(), get_lame_url()); + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_InvalidLamePresetOptions); + return -1; +} +#endif + +#if HAVE_MP3LAME >= 392 +/* lame_presets_longinfo_dm + taken out of presets_longinfo_dm in lame-3.93.1/frontend/parse.c and modified */ +static void lame_presets_longinfo_dm ( FILE* msgfp ) +{ + mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_LamePresetsLongInfo); +} +#endif |