Update of /cvsroot/mplayer/main/libmpdemux In directory mail:/var/tmp.root/cvs-serv8421 Added Files: demux_realaud.c Log Message: Realaudio support --- NEW FILE --- /* Realaudio demuxer for MPlayer (c) 2003 Roberto Togni */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include "config.h" #include "mp_msg.h" #include "help_mp.h" #include "stream.h" #include "demuxer.h" #include "stheader.h" #include "bswap.h" #define FOURCC_DOTRA mmioFOURCC('.','r','a', 0xfd) #define FOURCC_144 mmioFOURCC('1','4','_','4') #define FOURCC_288 mmioFOURCC('2','8','_','8') #define FOURCC_DNET mmioFOURCC('d','n','e','t') #define FOURCC_LPCJ mmioFOURCC('l','p','c','J') typedef struct { unsigned short version; unsigned int dotranum; unsigned int data_size; unsigned short version2; unsigned int hdr_size; unsigned short codec_flavor; unsigned int coded_framesize; unsigned short sub_packet_h; unsigned short frame_size; unsigned short sub_packet_size; char genr[4]; } ra_priv_t; int ra_check_file(demuxer_t* demuxer) { unsigned int chunk_id; stream_reset(demuxer->stream); stream_seek(demuxer->stream, 0); chunk_id = stream_read_dword_le(demuxer->stream); if (chunk_id == FOURCC_DOTRA) return 1; else return 0; } void hexdump(char *, unsigned long); // return value: // 0 = EOF or no stream found // 1 = successfully read a packet int demux_ra_fill_buffer(demuxer_t *demuxer) { ra_priv_t *ra_priv = demuxer->priv; int len; int timestamp; int flags; demux_stream_t *ds = demuxer->audio; sh_audio_t *sh = ds->sh; WAVEFORMATEX *wf = sh->wf; demux_packet_t *dp; if (demuxer->stream->eof) return 0; len = wf->nBlockAlign; demuxer->filepos = stream_tell(demuxer->stream); dp = new_demux_packet(len); stream_read(demuxer->stream, dp->buffer, len); if (sh->format == 0x2000) { // if DNET, swap bytes, as DNET is byte-swapped AC3: char *ptr = dp->buffer; int i; for (i = 0; i < len; i += 2) { const char tmp = ptr[0]; ptr[0] = ptr[1]; ptr[1] = tmp; ptr += 2; } } dp->pts = demuxer->filepos / ra_priv->data_size;; dp->pos = demuxer->filepos; dp->flags = 0; ds_add_packet(ds, dp); return 1; } extern void print_wave_header(WAVEFORMATEX *h); void demux_open_ra(demuxer_t* demuxer) { ra_priv_t* ra_priv = demuxer->priv; sh_audio_t *sh; int i; char *buf; if ((ra_priv = (ra_priv_t *)malloc(sizeof(ra_priv_t))) == NULL) { mp_msg(MSGT_DEMUX, MSGL_ERR, "[RealAudio] Can't allocate memory for private data.\n"); return NULL; } memset(ra_priv, 0, sizeof(ra_priv_t)); demuxer->priv = ra_priv; sh = new_sh_audio(demuxer, 0); demuxer->audio->id = 0; sh->ds=demuxer->audio; demuxer->audio->sh = sh; ra_priv->version = stream_read_word(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] File version: %d\n", ra_priv->version); if ((ra_priv->version < 3) || (ra_priv->version > 4)) { mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] ra version %d is not supported yet, please " "contact MPlayer developers\n", ra_priv->version); return NULL; } if (ra_priv->version == 3) { ra_priv->hdr_size = stream_read_word(demuxer->stream); stream_skip(demuxer->stream, 10); ra_priv->data_size = stream_read_dword(demuxer->stream); } else { stream_skip(demuxer->stream, 2); ra_priv->dotranum = stream_read_dword(demuxer->stream); ra_priv->data_size = stream_read_dword(demuxer->stream); ra_priv->version2 = stream_read_word(demuxer->stream); ra_priv->hdr_size = stream_read_dword(demuxer->stream); ra_priv->codec_flavor = stream_read_word(demuxer->stream); ra_priv->coded_framesize = stream_read_dword(demuxer->stream); stream_skip(demuxer->stream, 4); // data size? stream_skip(demuxer->stream, 8); ra_priv->sub_packet_h = stream_read_word(demuxer->stream); ra_priv->frame_size = stream_read_word(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Frame size: %d\n", ra_priv->frame_size); ra_priv->sub_packet_size = stream_read_word(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Sub packet size: %d\n", ra_priv->sub_packet_size); stream_skip(demuxer->stream, 2); sh->samplerate = stream_read_word(demuxer->stream); stream_skip(demuxer->stream, 2); sh->samplesize = stream_read_word(demuxer->stream); sh->channels = stream_read_word(demuxer->stream); mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] %d channel, %d bit, %dHz\n", sh->channels, sh->samplesize, sh->samplerate); i = stream_read_char(demuxer->stream); *((unsigned int *)(ra_priv->genr)) = stream_read_dword(demuxer->stream); if (i != 4) { mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Genr size is not 4 (%d), please report to " "MPlayer developers\n", i); stream_skip(demuxer->stream, i - 4); } i = stream_read_char(demuxer->stream); sh->format = stream_read_dword_le(demuxer->stream); if (i != 4) { mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] FourCC size is not 4 (%d), please report to " "MPlayer developers\n", i); stream_skip(demuxer->stream, i - 4); } stream_skip(demuxer->stream, 3); } if ((i = stream_read_char(demuxer->stream)) != 0) { buf = malloc(i+1); stream_read(demuxer->stream, buf, i); buf[i] = 0; demux_info_add(demuxer, "Title", buf); free(buf); } if ((i = stream_read_char(demuxer->stream)) != 0) { buf = malloc(i+1); stream_read(demuxer->stream, buf, i); buf[i] = 0; demux_info_add(demuxer, "Author", buf); free(buf); } if ((i = stream_read_char(demuxer->stream)) != 0) { buf = malloc(i+1); stream_read(demuxer->stream, buf, i); buf[i] = 0; demux_info_add(demuxer, "Copyright", buf); free(buf); } if ((i = stream_read_char(demuxer->stream)) != 0) mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Last header byte is not zero!\n"); if (ra_priv->version == 3) { stream_skip(demuxer->stream, 1); i = stream_read_char(demuxer->stream); sh->format = stream_read_dword_le(demuxer->stream); if (i != 4) { mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] FourCC size is not 4 (%d), please report to " "MPlayer developers\n", i); stream_skip(demuxer->stream, i - 4); } // stream_skip(demuxer->stream, 3); if (sh->format != FOURCC_LPCJ) { mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Version 3 with FourCC %8x, please report to " "MPlayer developers\n", sh->format); } sh->channels = 1; sh->samplesize = 16; sh->samplerate = 8000; ra_priv->frame_size = 240; sh->format = FOURCC_144; } /* Fill WAVEFORMATEX */ sh->wf = malloc(sizeof(WAVEFORMATEX)); memset(sh->wf, 0, sizeof(WAVEFORMATEX)); sh->wf->nChannels = sh->channels; sh->wf->wBitsPerSample = sh->samplesize; sh->wf->nSamplesPerSec = sh->samplerate; sh->wf->nAvgBytesPerSec = sh->samplerate*sh->samplesize/8; sh->wf->nBlockAlign = ra_priv->frame_size; sh->wf->cbSize = 0; sh->wf->wFormatTag = sh->format; switch (sh->format) { case FOURCC_144: mp_msg(MSGT_DEMUX,MSGL_V,"Audio: 14_4\n"); sh->wf->cbSize = 10/*+codecdata_length*/; sh->wf = realloc(sh->wf, sizeof(WAVEFORMATEX)+sh->wf->cbSize); ((short*)(sh->wf+1))[0]=0; ((short*)(sh->wf+1))[1]=240; ((short*)(sh->wf+1))[2]=0; ((short*)(sh->wf+1))[3]=0x14; ((short*)(sh->wf+1))[4]=0; break; case FOURCC_288: mp_msg(MSGT_DEMUX,MSGL_V,"Audio: 28_8\n"); sh->wf->cbSize = 8/*+codecdata_length*/; sh->wf = realloc(sh->wf, sizeof(WAVEFORMATEX)+sh->wf->cbSize); ((short*)(sh->wf+1))[0]=0; ((short*)(sh->wf+1))[1]=ra_priv->sub_packet_h; ((short*)(sh->wf+1))[2]=ra_priv->codec_flavor; ((short*)(sh->wf+1))[3]=ra_priv->coded_framesize; ((short*)(sh->wf+1))[4]=0; break; case FOURCC_DNET: mp_msg(MSGT_DEMUX,MSGL_V,"Audio: DNET -> AC3\n"); sh->format = 0x2000; break; default: mp_msg(MSGT_DEMUX,MSGL_V,"Audio: Unknown (%d)\n", sh->format); } print_wave_header(sh->wf); /* disable seeking */ demuxer->seekable = 0; if(!ds_fill_buffer(demuxer->audio)) mp_msg(MSGT_DEMUXER,MSGL_INFO,"[RealAudio] No data.\n"); } void demux_close_ra(demuxer_t *demuxer) { ra_priv_t* ra_priv = demuxer->priv; if (ra_priv) free(ra_priv); return; } #if 0 /* please upload RV10 samples WITH INDEX CHUNK */ int demux_seek_ra(demuxer_t *demuxer, float rel_seek_secs, int flags) { real_priv_t *priv = demuxer->priv; demux_stream_t *d_audio = demuxer->audio; sh_audio_t *sh_audio = d_audio->sh; int aid = d_audio->id; int next_offset = 0; int rel_seek_frames = 0; int streams = 0; return stream_seek(demuxer->stream, next_offset); } #endif