From b56bd49b6e047ce77ba2bfcf90c1b4c55b4d1565 Mon Sep 17 00:00:00 2001 From: alex Date: Wed, 12 Dec 2001 18:24:21 +0000 Subject: hacked audio support to work with acm git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3472 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpdemux/demux_viv.c | 121 +++++++++++++++++++++++++++++++++++++------------ 1 file changed, 92 insertions(+), 29 deletions(-) (limited to 'libmpdemux/demux_viv.c') diff --git a/libmpdemux/demux_viv.c b/libmpdemux/demux_viv.c index 203e3963b3..180300fef3 100644 --- a/libmpdemux/demux_viv.c +++ b/libmpdemux/demux_viv.c @@ -1,5 +1,5 @@ // VIVO file parser by A'rpi -// VIVO text header parser by alex +// VIVO text header parser and audio support by alex #include #include @@ -13,9 +13,30 @@ #include "stream.h" #include "demuxer.h" #include "stheader.h" - #include "bswap.h" +/* VIVO audio standards from vivog723.acm: + + G.723: + FormatTag = 0x111 + Channels = 1 - mono + SamplesPerSec = 8000 - 8khz + AvgBytesPerSec = 800 + BlockAlign (bytes per block) = 24 + BitsPerSample = 8 + + Siren: + FormatTag = 0x112 + Channels = 1 - mono + SamplesPerSec = 16000 - 16khz + AvgBytesPerSec = 2000 + BlockAlign (bytes per block) = 40 + BitsPerSample = 8 +*/ + +#define VIVO_AUDIO_G723 1 +#define VIVO_AUDIO_SIREN 2 + typedef struct { /* generic */ char version; @@ -32,9 +53,10 @@ typedef struct { int disp_width; int disp_height; /* audio */ - int br; - int samplerate; - int audio_len; + int audio_codec; + int audio_bitrate; + int audio_samplerate; + int audio_bytesperblock; } vivo_priv_t; /* parse all possible extra headers */ @@ -75,9 +97,9 @@ static void vivo_parse_text_header(demuxer_t *demux, int header_len) token, stream_tell(demux->stream)); break; } - mp_msg(MSGT_DEMUX, MSGL_DBG3, "token: '%s' (%d bytes/%d bytes left)\n", + mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token: '%s' (%d bytes/%d bytes left)\n", token, strlen(token), header_len); - mp_msg(MSGT_DEMUX, MSGL_DBG3, "token => o: '%s', p: '%s'\n", + mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token => o: '%s', p: '%s'\n", opt, param); /* checking versions: only v1 or v2 is suitable (or known?:) */ @@ -122,7 +144,7 @@ static void vivo_parse_text_header(demuxer_t *demux, int header_len) /* audio specific */ if (!strcmp(opt, "RecordType")) { - /* 3 by Vivo/1.00, 4 by Vivo/2.00 */ + /* no audio recordblock by Vivo/1.00, 3 and 4 by Vivo/2.00 */ if ((atoi(param) == 3) || (atoi(param) == 4)) parser_in_audio_block = 1; else @@ -130,44 +152,50 @@ static void vivo_parse_text_header(demuxer_t *demux, int header_len) } if (!strcmp(opt, "NominalBitrate")) { - mp_msg(MSGT_DEMUX, MSGL_DBG2, "Bitrate: %d\n", atoi(param)); - priv->br = atoi(param); + priv->audio_bitrate = atoi(param); + if (priv->audio_bitrate == 2000) + priv->audio_codec = VIVO_AUDIO_SIREN; + if (priv->audio_bitrate == 800) + priv->audio_codec = VIVO_AUDIO_G723; } if (!strcmp(opt, "SamplingFrequency")) { - mp_msg(MSGT_DEMUX, MSGL_DBG2, "Samplerate: %d\n", atoi(param)); - priv->samplerate = atoi(param); + priv->audio_samplerate = atoi(param); + if (priv->audio_samplerate == 16000) + priv->audio_codec = VIVO_AUDIO_SIREN; + if (priv->audio_samplerate == 8000) + priv->audio_codec = VIVO_AUDIO_G723; } if (!strcmp(opt, "Length") && (parser_in_audio_block == 1)) { - priv->audio_len = atoi(param); /* 24 or 40 kbps */ + priv->audio_bytesperblock = atoi(param); /* 24 or 40 kbps */ + if (priv->audio_bytesperblock == 40) + priv->audio_codec = VIVO_AUDIO_SIREN; + if (priv->audio_bytesperblock == 24) + priv->audio_codec = VIVO_AUDIO_G723; } /* only for displaying some informations about movie*/ if (!strcmp(opt, "Title")) { -// mp_msg(MSGT_DEMUX, MSGL_INFO, " Title: %s\n", param); demux_info_add(demux, "name", param); priv->title = malloc(strlen(param)); strcpy(priv->title, param); } if (!strcmp(opt, "Author")) { -// mp_msg(MSGT_DEMUX, MSGL_INFO, " Author: %s\n", param); demux_info_add(demux, "author", param); priv->author = malloc(strlen(param)); strcpy(priv->author, param); } if (!strcmp(opt, "Copyright")) { -// mp_msg(MSGT_DEMUX, MSGL_INFO, " Copyright: %s\n", param); demux_info_add(demux, "copyright", param); priv->copyright = malloc(strlen(param)); strcpy(priv->copyright, param); } if (!strcmp(opt, "Producer")) { -// mp_msg(MSGT_DEMUX, MSGL_INFO, " Producer: %s\n", param); demux_info_add(demux, "encoder", param); priv->producer = malloc(strlen(param)); strcpy(priv->producer, param); @@ -568,29 +596,64 @@ if(demuxer->audio->id>=-1){ } else { sh_audio_t* sh=new_sh_audio(demuxer,1); - if (priv->version == '2') + if (priv->audio_codec == 0) + { + if (priv->version == '2') + priv->audio_codec = VIVO_AUDIO_SIREN; + else + priv->audio_codec = VIVO_AUDIO_G723; + } + +// if (priv->version == '2') +// if (priv->audio_bytesperblock == 40) + if (priv->audio_codec == VIVO_AUDIO_SIREN) sh->format=0x112; /* Vivo Siren */ else // if (priv->version == '1') sh->format=0x111; /* Vivo G.723 */ -// if (sh->format == 0x111) /* G.723 */ -// sh->samplesize = priv->audio_len; /* 24 or 40 kbps */ -// printf("samplesize: %d\n", sh->samplesize); - // Emulate WAVEFORMATEX struct: sh->wf=malloc(sizeof(WAVEFORMATEX)); memset(sh->wf,0,sizeof(WAVEFORMATEX)); sh->wf->wFormatTag=sh->format; sh->wf->nChannels=1; - sh->wf->wBitsPerSample=16; -// sh->wf->wBitsPerSample=8; - if (priv->samplerate) - sh->wf->nSamplesPerSec=priv->samplerate; + /* FIXME bits, samplerate, avgbytes, and blockalign */ + if (priv->audio_codec == VIVO_AUDIO_SIREN) +// if (priv->audio_len == 40) + sh->wf->wBitsPerSample=16; /* siren */ + else + sh->wf->wBitsPerSample=8; + if (priv->audio_samplerate) + sh->wf->nSamplesPerSec=priv->audio_samplerate; + else + { + if (priv->audio_codec == VIVO_AUDIO_SIREN) + sh->wf->nSamplesPerSec=16000; + else + sh->wf->nSamplesPerSec=8000; + } + if (priv->audio_bitrate) + sh->wf->nAvgBytesPerSec=priv->audio_bitrate; + else + { + if (priv->audio_codec == VIVO_AUDIO_SIREN) +// if (priv->version == '2') + sh->wf->nAvgBytesPerSec = 2000; + else + sh->wf->nAvgBytesPerSec = 800; + } +// sh->wf->nAvgBytesPerSec=sh->wf->nChannels*sh->wf->wBitsPerSample*sh->wf->nSamplesPerSec/8; +// sh->wf->nBlockAlign=2*sh->wf->nChannels; + if (!priv->audio_bytesperblock) + { + if (priv->audio_codec == VIVO_AUDIO_SIREN) +// if (priv->version == '2') + sh->wf->nBlockAlign=40; /* siren */ + else + sh->wf->nBlockAlign=24; + } else - sh->wf->nSamplesPerSec=22050; -// sh->wf->nSamplesPerSec=8000; - sh->wf->nAvgBytesPerSec=sh->wf->nChannels*sh->wf->wBitsPerSample*sh->wf->nSamplesPerSec/8; + sh->wf->nBlockAlign=priv->audio_bytesperblock; demuxer->audio->sh=sh; sh->ds=demuxer->audio; demuxer->audio->id=1; } -- cgit v1.2.3