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https://github.com/mpv-player/mpv
synced 2024-11-18 21:16:10 +01:00
mencoder lavc audio encoding support
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11376 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
ranma
parent
0287286214
commit
834c6ad746
@ -3251,6 +3251,8 @@ no encoding, just streamcopy
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encode to uncompressed PCM
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.IPs "\-oac mp3lame"
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encode to MP3 (using Lame)
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.IPs "\-oac lavc"
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encode with a libavcodec codecs
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.RE
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.PD 1
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.
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@ -3529,9 +3531,30 @@ For full details read the source.
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.RE
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.PD 1
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.TP
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.B acodec=<value>
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Audio codec (default: mp2):
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.PD 0
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.RSs
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.IPs mp2
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MPEG Layer 2
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.IPs mp3
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MPEG Layer 3
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.IPs ac3
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AC3
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.IPs adpcm_ima_wav
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IMA Adaptive PCM (4bits per sample, 4:1 compression)
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.RE
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.PD 1
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.TP
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.B abitrate=<value>
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Audio bitrate in kBit (default 224).
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.TP
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.B atag=<value>
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Use the specified windows audio format tag (e.g. atag=0x55).
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.TP
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.B vcodec=<value>
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use the specified codec (there is no default, you must specify it):
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use the specified codec (default: mpeg4):
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.PD 0
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.RSs
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.IPs mjpeg
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@ -107,12 +107,20 @@ m_option_t oac_conf[]={
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{"mp3lame", &out_audio_codec, CONF_TYPE_FLAG, 0, 0, ACODEC_VBRMP3, NULL},
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#else
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{"mp3lame", "MPlayer was compiled without libmp3lame support!\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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#endif
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#ifdef USE_LIBAVCODEC
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{"lavc", &out_audio_codec, CONF_TYPE_FLAG, 0, 0, ACODEC_LAVC, NULL},
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#else
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{"lavc", "MPlayer was compiled without libavcodec! See README or DOCS!\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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#endif
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{"help", "\nAvailable codecs:\n"
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" copy - frame copy, without re-encoding (useful for AC3)\n"
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" pcm - uncompressed PCM audio\n"
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#ifdef HAVE_MP3LAME
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" mp3lame - cbr/abr/vbr MP3 using libmp3lame\n"
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#endif
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#ifdef USE_LIBAVCODEC
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" lavc - ffmpeg audio encoder (mp2, ac3, ...)\n"
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#endif
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"\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
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{NULL, NULL, 0, 0, 0, 0, NULL}
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4
configure
vendored
4
configure
vendored
@ -5725,6 +5725,7 @@ VIDIX = $_vidix
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SHARED_PP = $_shared_pp
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CONFIG_PP = yes
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CONFIG_RISKY = yes
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CONFIG_MP3LAME = $_mp3lame
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LIBMENU = $_menu
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I18NLIBS = $_i18n_libs
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MATROSKA = $_matroska
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@ -5802,7 +5803,7 @@ MP1E_LIB = $_ld_mp1e
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ARCH_LIB = $_ld_arch $_ld_iconv
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XVID = $_xvid
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XVID_LIB = $_ld_xvid
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DECORE_LIB = $_ld_decore
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DECORE_LIB = $_ld_decore $_ld_mp3lame
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MENCODER = $_mencoder
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ENCORE_LIB = $_ld_encore $_ld_mp3lame
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DIRECTFB_INC = $_inc_directfb
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@ -5944,6 +5945,7 @@ $_def_encore
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/* Indicates if libmp3lame is available
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Note: for mencoder */
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$_def_mp3lame
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#define CONFIG_MP3LAME HAVE_MP3LAME
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/* Define libmp1e for realtime mpeg encoding (for DXR3 and DVB cards) */
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$_def_mp1e
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@ -135,10 +135,17 @@ static int lavc_param_cbp= 0;
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static int lavc_param_mv0= 0;
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static int lavc_param_noise_reduction= 0;
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char *lavc_param_acodec = "mp2";
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int lavc_param_atag = 0;
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int lavc_param_abitrate = 224;
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#include "m_option.h"
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#ifdef USE_LIBAVCODEC
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m_option_t lavcopts_conf[]={
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{"acodec", &lavc_param_acodec, CONF_TYPE_STRING, 0, 0, 0, NULL},
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{"abitrate", &lavc_param_abitrate, CONF_TYPE_INT, CONF_RANGE, 1, 1000, NULL},
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{"atag", &lavc_param_atag, CONF_TYPE_INT, CONF_RANGE, 0, 0xffff, NULL},
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{"vcodec", &lavc_param_vcodec, CONF_TYPE_STRING, 0, 0, 0, NULL},
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{"vbitrate", &lavc_param_vbitrate, CONF_TYPE_INT, CONF_RANGE, 4, 24000000, NULL},
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{"vratetol", &lavc_param_vrate_tolerance, CONF_TYPE_INT, CONF_RANGE, 4, 24000000, NULL},
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210
mencoder.c
210
mencoder.c
@ -14,6 +14,7 @@
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#define ACODEC_PCM 1
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#define ACODEC_VBRMP3 2
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#define ACODEC_NULL 3
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#define ACODEC_LAVC 4
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#include <stdio.h>
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#include <stdlib.h>
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@ -71,6 +72,21 @@
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#include "osdep/timer.h"
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#ifdef USE_LIBAVCODEC
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// for lavc audio encoding
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#include "libavcodec/avcodec.h"
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static AVCodec *lavc_acodec;
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static AVCodecContext *lavc_actx = NULL;
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extern char *lavc_param_acodec;
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extern int lavc_param_abitrate;
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extern int lavc_param_atag;
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// tmp buffer for lavc audio encoding (to free!!!!!)
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static void *lavc_abuf = NULL;
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extern int avcodec_inited;
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static uint32_t lavc_find_atag(char *codec);
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#endif
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int vo_doublebuffering=0;
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int vo_directrendering=0;
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int vo_config_count=0;
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@ -792,6 +808,145 @@ case ACODEC_VBRMP3:
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}
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break;
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#endif
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#ifdef USE_LIBAVCODEC
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case ACODEC_LAVC:
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if(!lavc_param_acodec)
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{
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mp_msg(MSGT_MENCODER, MSGL_FATAL, "Audio LAVC, Missing codec name!\n");
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exit(1);
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}
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if(!avcodec_inited){
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avcodec_init();
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avcodec_register_all();
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avcodec_inited=1;
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}
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lavc_acodec = avcodec_find_encoder_by_name(lavc_param_acodec);
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if (!lavc_acodec)
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{
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mp_msg(MSGT_MENCODER, MSGL_FATAL, "Audio LAVC, couldn't find encoder for codec %s\n", lavc_param_acodec);
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exit(1);
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}
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lavc_actx = avcodec_alloc_context();
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if(lavc_actx == NULL)
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{
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mp_msg(MSGT_MENCODER, MSGL_FATAL, "Audio LAVC, couldn't allocate context!\n");
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exit(1);
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}
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if(lavc_param_atag == 0)
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lavc_param_atag = lavc_find_atag(lavc_param_acodec);
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// put sample parameters
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lavc_actx->channels = audio_output_channels ? audio_output_channels : sh_audio->channels;
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lavc_actx->sample_rate = force_srate ? force_srate : sh_audio->samplerate;
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lavc_actx->bit_rate = lavc_param_abitrate * 1000;
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/*
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* Special case for imaadpcm.
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* The bitrate is only dependant on samplerate.
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* We have to known frame_size and block_align in advance,
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* so I just copied the code from libavcodec/adpcm.c
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*
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* However, ms imaadpcm uses a block_align of 2048,
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* lavc defaults to 1024
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*/
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if(lavc_param_atag == 0x11) {
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int blkalign = 2048;
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int framesize = (blkalign - 4 * lavc_actx->channels) * 8 / (4 * lavc_actx->channels) + 1;
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lavc_actx->bit_rate = lavc_actx->sample_rate*8*blkalign/framesize;
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}
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if(avcodec_open(lavc_actx, lavc_acodec) < 0)
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{
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mp_msg(MSGT_MENCODER, MSGL_FATAL, "Couldn't open codec %s, br=%d\n", lavc_param_acodec, lavc_param_abitrate);
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exit(1);
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}
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if(lavc_param_atag == 0x11) {
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lavc_actx->block_align = 2048;
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lavc_actx->frame_size = (lavc_actx->block_align - 4 * lavc_actx->channels) * 8 / (4 * lavc_actx->channels) + 1;
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}
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lavc_abuf = malloc(lavc_actx->frame_size * 2 * lavc_actx->channels);
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if(lavc_abuf == NULL)
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{
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fprintf(stderr, "Couldn't allocate %d bytes\n", lavc_actx->frame_size * 2 * lavc_actx->channels);
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exit(1);
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}
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if (sizeof(MPEGLAYER3WAVEFORMAT) != 30) // should be 30
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broken_c_compiler___size_of_MPEGLAYER3WAVEFORMAT_not_30();
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mux_a->wf = malloc(sizeof(MPEGLAYER3WAVEFORMAT));
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mux_a->wf->wFormatTag = lavc_param_atag;
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mux_a->wf->nChannels = lavc_actx->channels;
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mux_a->wf->nSamplesPerSec = lavc_actx->sample_rate;
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mux_a->wf->nAvgBytesPerSec = (lavc_actx->bit_rate / 8);
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mux_a->h.dwRate = mux_a->wf->nAvgBytesPerSec;
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if (lavc_actx->block_align) {
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mux_a->h.dwSampleSize = mux_a->h.dwScale = lavc_actx->block_align;
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} else {
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mux_a->h.dwScale = (mux_a->wf->nAvgBytesPerSec * lavc_actx->frame_size)/ mux_a->wf->nSamplesPerSec; /* for cbr */
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if ((mux_a->wf->nAvgBytesPerSec *
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lavc_actx->frame_size) % mux_a->wf->nSamplesPerSec) {
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mux_a->h.dwScale = lavc_actx->frame_size;
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mux_a->h.dwRate = lavc_actx->sample_rate;
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mux_a->h.dwSampleSize = 0; // Blocksize not constant
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} else {
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mux_a->h.dwSampleSize = mux_a->h.dwScale;
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}
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}
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mux_a->wf->nBlockAlign = mux_a->h.dwScale;
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mux_a->h.dwSuggestedBufferSize = audio_preload*mux_a->wf->nAvgBytesPerSec;
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mux_a->h.dwSuggestedBufferSize -= mux_a->h.dwSuggestedBufferSize % mux_a->wf->nBlockAlign;
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switch (lavc_param_atag) {
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case 0x11: /* imaadpcm */
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mux_a->wf->wBitsPerSample = 4;
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mux_a->wf->cbSize = 2;
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/*
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* Magic imaadpcm values, currently probably only valid
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* for 48KHz Stereo
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*/
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((unsigned char*)mux_a->wf)[sizeof(WAVEFORMATEX)] = 0xf9;
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((unsigned char*)mux_a->wf)[sizeof(WAVEFORMATEX)+1] = 0x07;
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break;
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case 0x55: /* mp3 */
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mux_a->wf->cbSize = 12;
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mux_a->wf->wBitsPerSample = 0; /* does not apply */
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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 = mux_a->wf->nBlockAlign;
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((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->nFramesPerBlock = 1;
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((MPEGLAYER3WAVEFORMAT *) (mux_a->wf))->nCodecDelay = 0;
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break;
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default:
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mux_a->wf->cbSize = 0;
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mux_a->wf->wBitsPerSample = 0; /* Unknown */
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break;
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}
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// setup filter:
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if (!init_audio_filters(
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sh_audio,
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sh_audio->samplerate, sh_audio->channels,
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sh_audio->sample_format, sh_audio->samplesize,
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mux_a->wf->nSamplesPerSec, mux_a->wf->nChannels,
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AFMT_S16_NE, 2,
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mux_a->h.dwSuggestedBufferSize,
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mux_a->h.dwSuggestedBufferSize*2)) {
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mp_msg(MSGT_CPLAYER, MSGL_ERR, "Couldn't find matching filter / ao format!\n");
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exit(1);
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}
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mp_msg(MSGT_MENCODER, MSGL_V, "FRAME_SIZE: %d, BUFFER_SIZE: %d, TAG: 0x%x\n", lavc_actx->frame_size, lavc_actx->frame_size * 2 * lavc_actx->channels, mux_a->wf->wFormatTag);
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break;
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#endif
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}
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if (verbose>1) print_wave_header(mux_a->wf);
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@ -919,6 +1074,33 @@ if(sh_audio){
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ptimer_start = GetTimerMS();
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#ifdef USE_LIBAVCODEC
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if(mux_a->codec == ACODEC_LAVC){
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int size, rd_len;
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size = lavc_actx->frame_size * 2 * mux_a->wf->nChannels;
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rd_len = dec_audio(sh_audio, lavc_abuf, size);
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if(rd_len != size)
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break;
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// Encode one frame
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mux_a->buffer_len += avcodec_encode_audio(lavc_actx, mux_a->buffer + mux_a->buffer_len, size, lavc_abuf);
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if (mux_a->h.dwSampleSize) { /* CBR */
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/*
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* work around peculiar lame behaviour
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*/
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if (mux_a->buffer_len < mux_a->wf->nBlockAlign) {
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len = 0;
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} else {
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len = mux_a->wf->nBlockAlign*(mux_a->buffer_len/mux_a->wf->nBlockAlign);
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}
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} else { /* VBR */
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len = mux_a->buffer_len;
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}
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if (mux_v->timer == 0) mux_a->h.dwInitialFrames++;
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}
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#endif
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if(mux_a->h.dwSampleSize){
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// CBR - copy 0.5 sec of audio
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switch(mux_a->codec){
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@ -1294,6 +1476,11 @@ if(sh_video){ uninit_video(sh_video);sh_video=NULL; }
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if(demuxer) free_demuxer(demuxer);
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if(stream) free_stream(stream); // kill cache thread
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#ifdef USE_LIBAVCODEC
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if(lavc_abuf != NULL)
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free(lavc_abuf);
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#endif
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return interrupted;
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}
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@ -1600,3 +1787,26 @@ static void lame_presets_longinfo_dm ( FILE* msgfp )
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mencoder_exit(0, NULL);
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}
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#endif
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#ifdef USE_LIBAVCODEC
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static uint32_t lavc_find_atag(char *codec)
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{
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if(codec == NULL)
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return 0;
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if(! strcasecmp(codec, "mp2"))
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return 0x50;
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if(! strcasecmp(codec, "mp3"))
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return 0x55;
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if(! strcasecmp(codec, "ac3"))
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return 0x2000;
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if(! strcasecmp(codec, "adpcm_ima_wav"))
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return 0x11;
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return 0;
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}
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#endif
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