diff options
Diffstat (limited to 'libmpdemux/demux_realaud.c')
-rw-r--r-- | libmpdemux/demux_realaud.c | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/libmpdemux/demux_realaud.c b/libmpdemux/demux_realaud.c deleted file mode 100644 index d42b98a023..0000000000 --- a/libmpdemux/demux_realaud.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - * Realaudio demuxer - * copyright (c) 2003, 2005 Roberto Togni - * - * This file is part of MPlayer. - * - * MPlayer is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * MPlayer is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with MPlayer; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include "config.h" -#include "mp_msg.h" - -#include "stream/stream.h" -#include "aviprint.h" -#include "demuxer.h" -#include "stheader.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') -#define FOURCC_SIPR mmioFOURCC('s','i','p','r') -#define INTLID_INT4 mmioFOURCC('I','n','t','4') -#define INTLID_SIPR mmioFOURCC('s','i','p','r') - - -static unsigned char sipr_swaps[38][2]={ - {0,63},{1,22},{2,44},{3,90},{5,81},{7,31},{8,86},{9,58},{10,36},{12,68}, - {13,39},{14,73},{15,53},{16,69},{17,57},{19,88},{20,34},{21,71},{24,46}, - {25,94},{26,54},{28,75},{29,50},{32,70},{33,92},{35,74},{38,85},{40,56}, - {42,87},{43,65},{45,59},{48,79},{49,93},{51,89},{55,95},{61,76},{67,83}, - {77,80} }; - -// Map flavour to bytes per second -static int sipr_fl2bps[4] = {813, 1062, 625, 2000}; // 6.5, 8.5, 5, 16 kbit per second - - -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; - unsigned intl_id; - unsigned char *audio_buf; -} ra_priv_t; - - - -static int ra_check_file(demuxer_t* demuxer) -{ - unsigned int chunk_id; - - chunk_id = stream_read_dword_le(demuxer->stream); - if (chunk_id == FOURCC_DOTRA) - return DEMUXER_TYPE_REALAUDIO; - else - return 0; -} - - - -// return value: -// 0 = EOF or no stream found -// 1 = successfully read a packet -static int demux_ra_fill_buffer(demuxer_t *demuxer, demux_stream_t *dsds) -{ - ra_priv_t *ra_priv = demuxer->priv; - int len; - demux_stream_t *ds = demuxer->audio; - sh_audio_t *sh = ds->sh; - WAVEFORMATEX *wf = sh->wf; - demux_packet_t *dp; - int x, y; - - if (demuxer->stream->eof) - return 0; - - len = wf->nBlockAlign; - demuxer->filepos = stream_tell(demuxer->stream); - - if ((ra_priv->intl_id == INTLID_INT4) || (ra_priv->intl_id == INTLID_SIPR)) { - if (ra_priv->intl_id == INTLID_SIPR) { - int n; - int bs = ra_priv->sub_packet_h * ra_priv->frame_size * 2 / 96; // nibbles per subpacket - stream_read(demuxer->stream, ra_priv->audio_buf, ra_priv->sub_packet_h * ra_priv->frame_size); - // Perform reordering - for(n = 0; n < 38; n++) { - int j; - int i = bs * sipr_swaps[n][0]; - int o = bs * sipr_swaps[n][1]; - // swap nibbles of block 'i' with 'o' TODO: optimize - for(j = 0; j < bs; j++) { - int x = (i & 1) ? (ra_priv->audio_buf[i >> 1] >> 4) : (ra_priv->audio_buf[i >> 1] & 0x0F); - int y = (o & 1) ? (ra_priv->audio_buf[o >> 1] >> 4) : (ra_priv->audio_buf[o >> 1] & 0x0F); - if(o & 1) - ra_priv->audio_buf[o >> 1] = (ra_priv->audio_buf[o >> 1] & 0x0F) | (x << 4); - else - ra_priv->audio_buf[o >> 1] = (ra_priv->audio_buf[o >> 1] & 0xF0) | x; - if(i & 1) - ra_priv->audio_buf[i >> 1] = (ra_priv->audio_buf[i >> 1] & 0x0F) | (y << 4); - else - ra_priv->audio_buf[i >> 1] = (ra_priv->audio_buf[i >> 1] & 0xF0) | y; - ++i; ++o; - } - } - } else { - for (y = 0; y < ra_priv->sub_packet_h; y++) - for (x = 0; x < ra_priv->sub_packet_h / 2; x++) - stream_read(demuxer->stream, ra_priv->audio_buf + x * 2 *ra_priv->frame_size + - y * ra_priv->coded_framesize, ra_priv->coded_framesize); - } - // Release all the audio packets - for (x = 0; x < ra_priv->sub_packet_h * ra_priv->frame_size / len; x++) { - dp = new_demux_packet(len); - memcpy(dp->buffer, ra_priv->audio_buf + x * len, len); - dp->pts = x ? 0 : demuxer->filepos / ra_priv->data_size; - dp->pos = demuxer->filepos; // all equal - dp->keyframe = !x; // Mark first packet as keyframe - ds_add_packet(ds, dp); - } - } else { - dp = new_demux_packet(len); - stream_read(demuxer->stream, dp->buffer, len); - - dp->pts = demuxer->filepos / ra_priv->data_size; - dp->pos = demuxer->filepos; - ds_add_packet(ds, dp); - } - - return 1; -} - - - -static demuxer_t* demux_open_ra(demuxer_t* demuxer) -{ - ra_priv_t* ra_priv = demuxer->priv; - sh_audio_t *sh; - int i; - char *buf; - - if ((ra_priv = malloc(sizeof(ra_priv_t))) == NULL) { - mp_msg(MSGT_DEMUX, MSGL_ERR, "[RealAudio] Can't allocate memory for private data.\n"); - return 0; - } - 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 0; - } - 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); - mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Flavor: %d\n", ra_priv->codec_flavor); - ra_priv->coded_framesize = stream_read_dword(demuxer->stream); - mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Coded frame size: %d\n", ra_priv->coded_framesize); - stream_skip(demuxer->stream, 4); // data size? - stream_skip(demuxer->stream, 8); - ra_priv->sub_packet_h = stream_read_word(demuxer->stream); - mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Sub packet h: %d\n", ra_priv->sub_packet_h); - 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); - ra_priv->intl_id = stream_read_dword_le(demuxer->stream); - if (i != 4) { - mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Interleaver Id 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) { - buf = malloc(i+1); - stream_read(demuxer->stream, buf, i); - buf[i] = 0; - demux_info_add(demuxer, "Comment", buf); - free(buf); - } - - if (ra_priv->version == 3) { - if(ra_priv->hdr_size + 8 > stream_tell(demuxer->stream)) { - 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); - } - - 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); - } - } else - // If a stream does not have fourcc, let's assume it's 14.4 - sh->format = FOURCC_LPCJ; - - sh->channels = 1; - sh->samplesize = 16; - sh->samplerate = 8000; - ra_priv->frame_size = 240; - sh->format = FOURCC_144; - } - - /* Fill WAVEFORMATEX */ - sh->wf = calloc(1, sizeof(*sh->wf)); - 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->nBlockAlign = 0x14; - break; - case FOURCC_288: - mp_msg(MSGT_DEMUX,MSGL_V,"Audio: 28_8\n"); - sh->wf->nBlockAlign = ra_priv->coded_framesize; - ra_priv->audio_buf = calloc(ra_priv->sub_packet_h, ra_priv->frame_size); - break; - case FOURCC_DNET: - mp_msg(MSGT_DEMUX,MSGL_V,"Audio: DNET -> AC3\n"); - break; - case FOURCC_SIPR: - mp_msg(MSGT_DEMUX,MSGL_V,"Audio: SIPR\n"); - sh->wf->nBlockAlign = ra_priv->coded_framesize; - sh->wf->nAvgBytesPerSec = sipr_fl2bps[ra_priv->codec_flavor]; - ra_priv->audio_buf = calloc(ra_priv->sub_packet_h, ra_priv->frame_size); - break; - default: - mp_msg(MSGT_DEMUX,MSGL_V,"Audio: Unknown (%d)\n", sh->format); - } - - print_wave_header(sh->wf, MSGL_V); - - /* disable seeking */ - demuxer->seekable = 0; - - if(!ds_fill_buffer(demuxer->audio)) - mp_msg(MSGT_DEMUXER,MSGL_INFO,"[RealAudio] No data.\n"); - - return demuxer; -} - - - -static void demux_close_ra(demuxer_t *demuxer) -{ - ra_priv_t* ra_priv = demuxer->priv; - - if (ra_priv) { - free(ra_priv->audio_buf); - free(ra_priv); - } -} - - -#if 0 -/* please upload RV10 samples WITH INDEX CHUNK */ -int demux_seek_ra(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, 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 - - -const demuxer_desc_t demuxer_desc_realaudio = { - "Realaudio demuxer", - "realaudio", - "REALAUDIO", - "Roberto Togni", - "handles old audio only .ra files", - DEMUXER_TYPE_REALAUDIO, - 1, // safe autodetect - ra_check_file, - demux_ra_fill_buffer, - demux_open_ra, - demux_close_ra, - NULL, - NULL -}; |