FFmpeg: libavformat/raw.c Source File

00001 /*
00002  * RAW muxer and demuxer
00003  * Copyright (c) 2001 Fabrice Bellard
00004  * Copyright (c) 2005 Alex Beregszaszi
00005  *
00006  * This file is part of FFmpeg.
00007  *
00008  * FFmpeg is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * FFmpeg is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with FFmpeg; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00023 #include "libavutil/crc.h"
00024 #include "libavcodec/ac3_parser.h"
00025 #include "libavcodec/get_bits.h"
00026 #include "libavcodec/bytestream.h"
00027 #include "avformat.h"
00028 #include "raw.h"
00029 #include "id3v2.h"
00030 #include "id3v1.h"
00031 
00032 /* simple formats */
00033 
00034 #if CONFIG_ROQ_MUXER
00035 static int roq_write_header(struct AVFormatContext *s)
00036 {
00037     static const uint8_t header[] = {
00038         0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0x1E, 0x00
00039     };
00040 
00041     put_buffer(s->pb, header, 8);
00042     put_flush_packet(s->pb);
00043 
00044     return 0;
00045 }
00046 #endif
00047 
00048 #if CONFIG_NULL_MUXER
00049 static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
00050 {
00051     return 0;
00052 }
00053 #endif
00054 
00055 #if CONFIG_MUXERS
00056 static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
00057 {
00058     put_buffer(s->pb, pkt->data, pkt->size);
00059     put_flush_packet(s->pb);
00060     return 0;
00061 }
00062 #endif
00063 
00064 #if CONFIG_DEMUXERS
00065 /* raw input */
00066 static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
00067 {
00068     AVStream *st;
00069     enum CodecID id;
00070 
00071     st = av_new_stream(s, 0);
00072     if (!st)
00073         return AVERROR(ENOMEM);
00074 
00075         id = s->iformat->value;
00076         if (id == CODEC_ID_RAWVIDEO) {
00077             st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
00078         } else {
00079             st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
00080         }
00081         st->codec->codec_id = id;
00082 
00083         switch(st->codec->codec_type) {
00084         case AVMEDIA_TYPE_AUDIO:
00085             st->codec->sample_rate = ap->sample_rate;
00086             if(ap->channels) st->codec->channels = ap->channels;
00087             else             st->codec->channels = 1;
00088             st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
00089             assert(st->codec->bits_per_coded_sample > 0);
00090             st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
00091             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
00092             break;
00093         case AVMEDIA_TYPE_VIDEO:
00094             if(ap->time_base.num)
00095                 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
00096             else
00097                 av_set_pts_info(st, 64, 1, 25);
00098             st->codec->width = ap->width;
00099             st->codec->height = ap->height;
00100             st->codec->pix_fmt = ap->pix_fmt;
00101             if(st->codec->pix_fmt == PIX_FMT_NONE)
00102                 st->codec->pix_fmt= PIX_FMT_YUV420P;
00103             break;
00104         default:
00105             return -1;
00106         }
00107     return 0;
00108 }
00109 
00110 #define RAW_PACKET_SIZE 1024
00111 #define RAW_SAMPLES     1024
00112 
00113 static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
00114 {
00115     int ret, size, bps;
00116     //    AVStream *st = s->streams[0];
00117 
00118     size= RAW_SAMPLES*s->streams[0]->codec->block_align;
00119 
00120     ret= av_get_packet(s->pb, pkt, size);
00121 
00122     pkt->stream_index = 0;
00123     if (ret < 0)
00124         return ret;
00125 
00126     bps= av_get_bits_per_sample(s->streams[0]->codec->codec_id);
00127     assert(bps); // if false there IS a bug elsewhere (NOT in this function)
00128     pkt->dts=
00129     pkt->pts= pkt->pos*8 / (bps * s->streams[0]->codec->channels);
00130 
00131     return ret;
00132 }
00133 
00134 int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
00135 {
00136     int ret, size;
00137 
00138     size = RAW_PACKET_SIZE;
00139 
00140     if (av_new_packet(pkt, size) < 0)
00141         return AVERROR(ENOMEM);
00142 
00143     pkt->pos= url_ftell(s->pb);
00144     pkt->stream_index = 0;
00145     ret = get_partial_buffer(s->pb, pkt->data, size);
00146     if (ret < 0) {
00147         av_free_packet(pkt);
00148         return ret;
00149     }
00150     pkt->size = ret;
00151     return ret;
00152 }
00153 #endif
00154 
00155 #if CONFIG_RAWVIDEO_DEMUXER
00156 static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
00157 {
00158     int packet_size, ret, width, height;
00159     AVStream *st = s->streams[0];
00160 
00161     width = st->codec->width;
00162     height = st->codec->height;
00163 
00164     packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
00165     if (packet_size < 0)
00166         return -1;
00167 
00168     ret= av_get_packet(s->pb, pkt, packet_size);
00169     pkt->pts=
00170     pkt->dts= pkt->pos / packet_size;
00171 
00172     pkt->stream_index = 0;
00173     if (ret < 0)
00174         return ret;
00175     return 0;
00176 }
00177 #endif
00178 
00179 #if CONFIG_INGENIENT_DEMUXER
00180 // http://www.artificis.hu/files/texts/ingenient.txt
00181 static int ingenient_read_packet(AVFormatContext *s, AVPacket *pkt)
00182 {
00183     int ret, size, w, h, unk1, unk2;
00184 
00185     if (get_le32(s->pb) != MKTAG('M', 'J', 'P', 'G'))
00186         return AVERROR(EIO); // FIXME
00187 
00188     size = get_le32(s->pb);
00189 
00190     w = get_le16(s->pb);
00191     h = get_le16(s->pb);
00192 
00193     url_fskip(s->pb, 8); // zero + size (padded?)
00194     url_fskip(s->pb, 2);
00195     unk1 = get_le16(s->pb);
00196     unk2 = get_le16(s->pb);
00197     url_fskip(s->pb, 22); // ASCII timestamp
00198 
00199     av_log(s, AV_LOG_DEBUG, "Ingenient packet: size=%d, width=%d, height=%d, unk1=%d unk2=%d\n",
00200         size, w, h, unk1, unk2);
00201 
00202     if (av_new_packet(pkt, size) < 0)
00203         return AVERROR(ENOMEM);
00204 
00205     pkt->pos = url_ftell(s->pb);
00206     pkt->stream_index = 0;
00207     ret = get_buffer(s->pb, pkt->data, size);
00208     if (ret < 0) {
00209         av_free_packet(pkt);
00210         return ret;
00211     }
00212     pkt->size = ret;
00213     return ret;
00214 }
00215 #endif
00216 
00217 #if CONFIG_DEMUXERS
00218 int pcm_read_seek(AVFormatContext *s,
00219                   int stream_index, int64_t timestamp, int flags)
00220 {
00221     AVStream *st;
00222     int block_align, byte_rate;
00223     int64_t pos, ret;
00224 
00225     st = s->streams[0];
00226 
00227     block_align = st->codec->block_align ? st->codec->block_align :
00228         (av_get_bits_per_sample(st->codec->codec_id) * st->codec->channels) >> 3;
00229     byte_rate = st->codec->bit_rate ? st->codec->bit_rate >> 3 :
00230         block_align * st->codec->sample_rate;
00231 
00232     if (block_align <= 0 || byte_rate <= 0)
00233         return -1;
00234     if (timestamp < 0) timestamp = 0;
00235 
00236     /* compute the position by aligning it to block_align */
00237     pos = av_rescale_rnd(timestamp * byte_rate,
00238                          st->time_base.num,
00239                          st->time_base.den * (int64_t)block_align,
00240                          (flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
00241     pos *= block_align;
00242 
00243     /* recompute exact position */
00244     st->cur_dts = av_rescale(pos, st->time_base.den, byte_rate * (int64_t)st->time_base.num);
00245     if ((ret = url_fseek(s->pb, pos + s->data_offset, SEEK_SET)) < 0)
00246         return ret;
00247     return 0;
00248 }
00249 
00250 static int audio_read_header(AVFormatContext *s,
00251                              AVFormatParameters *ap)
00252 {
00253     AVStream *st = av_new_stream(s, 0);
00254     if (!st)
00255         return AVERROR(ENOMEM);
00256     st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
00257     st->codec->codec_id = s->iformat->value;
00258     st->need_parsing = AVSTREAM_PARSE_FULL;
00259     /* the parameters will be extracted from the compressed bitstream */
00260 
00261     return 0;
00262 }
00263 
00264 /* MPEG-1/H.263 input */
00265 static int video_read_header(AVFormatContext *s,
00266                              AVFormatParameters *ap)
00267 {
00268     AVStream *st;
00269 
00270     st = av_new_stream(s, 0);
00271     if (!st)
00272         return AVERROR(ENOMEM);
00273 
00274     st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
00275     st->codec->codec_id = s->iformat->value;
00276     st->need_parsing = AVSTREAM_PARSE_FULL;
00277 
00278     /* for MJPEG, specify frame rate */
00279     /* for MPEG-4 specify it, too (most MPEG-4 streams do not have the fixed_vop_rate set ...)*/
00280     if (ap->time_base.num) {
00281         st->codec->time_base= ap->time_base;
00282     } else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
00283                 st->codec->codec_id == CODEC_ID_MPEG4 ||
00284                 st->codec->codec_id == CODEC_ID_DIRAC ||
00285                 st->codec->codec_id == CODEC_ID_DNXHD ||
00286                 st->codec->codec_id == CODEC_ID_H264) {
00287         st->codec->time_base= (AVRational){1,25};
00288     }
00289     av_set_pts_info(st, 64, 1, 1200000);
00290 
00291     return 0;
00292 }
00293 #endif
00294 
00295 #if CONFIG_MPEGVIDEO_DEMUXER
00296 #define SEQ_START_CODE          0x000001b3
00297 #define GOP_START_CODE          0x000001b8
00298 #define PICTURE_START_CODE      0x00000100
00299 #define SLICE_START_CODE        0x00000101
00300 #define PACK_START_CODE         0x000001ba
00301 #define VIDEO_ID                0x000001e0
00302 #define AUDIO_ID                0x000001c0
00303 
00304 static int mpegvideo_probe(AVProbeData *p)
00305 {
00306     uint32_t code= -1;
00307     int pic=0, seq=0, slice=0, pspack=0, pes=0;
00308     int i;
00309 
00310     for(i=0; i<p->buf_size; i++){
00311         code = (code<<8) + p->buf[i];
00312         if ((code & 0xffffff00) == 0x100) {
00313             switch(code){
00314             case     SEQ_START_CODE:   seq++; break;
00315             case PICTURE_START_CODE:   pic++; break;
00316             case   SLICE_START_CODE: slice++; break;
00317             case    PACK_START_CODE: pspack++; break;
00318             }
00319             if     ((code & 0x1f0) == VIDEO_ID)   pes++;
00320             else if((code & 0x1e0) == AUDIO_ID)   pes++;
00321         }
00322     }
00323     if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
00324         return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
00325     return 0;
00326 }
00327 #endif
00328 
00329 #if CONFIG_CAVSVIDEO_DEMUXER
00330 #define CAVS_SEQ_START_CODE       0x000001b0
00331 #define CAVS_PIC_I_START_CODE     0x000001b3
00332 #define CAVS_UNDEF_START_CODE     0x000001b4
00333 #define CAVS_PIC_PB_START_CODE    0x000001b6
00334 #define CAVS_VIDEO_EDIT_CODE      0x000001b7
00335 #define CAVS_PROFILE_JIZHUN       0x20
00336 
00337 static int cavsvideo_probe(AVProbeData *p)
00338 {
00339     uint32_t code= -1;
00340     int pic=0, seq=0, slice_pos = 0;
00341     int i;
00342 
00343     for(i=0; i<p->buf_size; i++){
00344         code = (code<<8) + p->buf[i];
00345         if ((code & 0xffffff00) == 0x100) {
00346             if(code < CAVS_SEQ_START_CODE) {
00347                 /* slices have to be consecutive */
00348                 if(code < slice_pos)
00349                     return 0;
00350                 slice_pos = code;
00351             } else {
00352                 slice_pos = 0;
00353             }
00354             if (code == CAVS_SEQ_START_CODE) {
00355                 seq++;
00356                 /* check for the only currently supported profile */
00357                 if(p->buf[i+1] != CAVS_PROFILE_JIZHUN)
00358                     return 0;
00359             } else if ((code == CAVS_PIC_I_START_CODE) ||
00360                        (code == CAVS_PIC_PB_START_CODE)) {
00361                 pic++;
00362             } else if ((code == CAVS_UNDEF_START_CODE) ||
00363                        (code >  CAVS_VIDEO_EDIT_CODE)) {
00364                 return 0;
00365             }
00366         }
00367     }
00368     if(seq && seq*9<=pic*10)
00369         return AVPROBE_SCORE_MAX/2;
00370     return 0;
00371 }
00372 #endif
00373 
00374 #if CONFIG_M4V_DEMUXER
00375 #define VISUAL_OBJECT_START_CODE       0x000001b5
00376 #define VOP_START_CODE                 0x000001b6
00377 
00378 static int mpeg4video_probe(AVProbeData *probe_packet)
00379 {
00380     uint32_t temp_buffer= -1;
00381     int VO=0, VOL=0, VOP = 0, VISO = 0, res=0;
00382     int i;
00383 
00384     for(i=0; i<probe_packet->buf_size; i++){
00385         temp_buffer = (temp_buffer<<8) + probe_packet->buf[i];
00386         if ((temp_buffer & 0xffffff00) != 0x100)
00387             continue;
00388 
00389         if (temp_buffer == VOP_START_CODE)                         VOP++;
00390         else if (temp_buffer == VISUAL_OBJECT_START_CODE)          VISO++;
00391         else if (temp_buffer < 0x120)                              VO++;
00392         else if (temp_buffer < 0x130)                              VOL++;
00393         else if (   !(0x1AF < temp_buffer && temp_buffer < 0x1B7)
00394                  && !(0x1B9 < temp_buffer && temp_buffer < 0x1C4)) res++;
00395     }
00396 
00397     if ( VOP >= VISO && VOP >= VOL && VO >= VOL && VOL > 0 && res==0)
00398         return AVPROBE_SCORE_MAX/2;
00399     return 0;
00400 }
00401 #endif
00402 
00403 #if CONFIG_H264_DEMUXER
00404 static int h264_probe(AVProbeData *p)
00405 {
00406     uint32_t code= -1;
00407     int sps=0, pps=0, idr=0, res=0, sli=0;
00408     int i;
00409 
00410     for(i=0; i<p->buf_size; i++){
00411         code = (code<<8) + p->buf[i];
00412         if ((code & 0xffffff00) == 0x100) {
00413             int ref_idc= (code>>5)&3;
00414             int type   = code & 0x1F;
00415             static const int8_t ref_zero[32]={
00416                 2, 0, 0, 0, 0,-1, 1,-1,
00417                -1, 1, 1, 1, 1,-1, 2, 2,
00418                 2, 2, 2, 0, 2, 2, 2, 2,
00419                 2, 2, 2, 2, 2, 2, 2, 2
00420             };
00421 
00422             if(code & 0x80) //forbidden bit
00423                 return 0;
00424 
00425             if(ref_zero[type] == 1 && ref_idc)
00426                 return 0;
00427             if(ref_zero[type] ==-1 && !ref_idc)
00428                 return 0;
00429             if(ref_zero[type] == 2)
00430                 res++;
00431 
00432             switch(type){
00433             case     1:   sli++; break;
00434             case     5:   idr++; break;
00435             case     7:
00436                 if(p->buf[i+2]&0x0F)
00437                     return 0;
00438                 sps++;
00439                 break;
00440             case     8:   pps++; break;
00441             }
00442         }
00443     }
00444     if(sps && pps && (idr||sli>3) && res<(sps+pps+idr))
00445         return AVPROBE_SCORE_MAX/2+1; // +1 for .mpg
00446     return 0;
00447 }
00448 #endif
00449 
00450 #if CONFIG_H263_DEMUXER
00451 static int h263_probe(AVProbeData *p)
00452 {
00453     uint64_t code= -1;
00454     int i;
00455     int valid_psc=0;
00456     int invalid_psc=0;
00457     int res_change=0;
00458     int src_fmt, last_src_fmt=-1;
00459 
00460     for(i=0; i<p->buf_size; i++){
00461         code = (code<<8) + p->buf[i];
00462         if ((code & 0xfffffc0000) == 0x800000) {
00463             src_fmt= (code>>2)&3;
00464             if(   src_fmt != last_src_fmt
00465                && last_src_fmt>0 && last_src_fmt<6
00466                && src_fmt<6)
00467                 res_change++;
00468 
00469             if((code&0x300)==0x200 && src_fmt){
00470                 valid_psc++;
00471             }else
00472                 invalid_psc++;
00473             last_src_fmt= src_fmt;
00474         }
00475     }
00476 //av_log(NULL, AV_LOG_ERROR, "h263_probe: psc:%d invalid:%d res_change:%d\n", valid_psc, invalid_psc, res_change);
00477 //h263_probe: psc:3 invalid:0 res_change:0 (1588/recent_ffmpeg_parses_mpg_incorrectly.mpg)
00478     if(valid_psc > 2*invalid_psc + 2*res_change + 3){
00479         return 50;
00480     }else if(valid_psc > 2*invalid_psc)
00481         return 25;
00482     return 0;
00483 }
00484 #endif
00485 
00486 #if CONFIG_H261_DEMUXER
00487 static int h261_probe(AVProbeData *p)
00488 {
00489     uint32_t code= -1;
00490     int i;
00491     int valid_psc=0;
00492     int invalid_psc=0;
00493     int next_gn=0;
00494     int src_fmt=0;
00495     GetBitContext gb;
00496 
00497     init_get_bits(&gb, p->buf, p->buf_size*8);
00498 
00499     for(i=0; i<p->buf_size*8; i++){
00500         if ((code & 0x01ff0000) || !(code & 0xff00)) {
00501             code = (code<<8) + get_bits(&gb, 8);
00502             i += 7;
00503         } else
00504             code = (code<<1) + get_bits1(&gb);
00505         if ((code & 0xffff0000) == 0x10000) {
00506             int gn= (code>>12)&0xf;
00507             if(!gn)
00508                 src_fmt= code&8;
00509             if(gn != next_gn) invalid_psc++;
00510             else              valid_psc++;
00511 
00512             if(src_fmt){ // CIF
00513                 next_gn= (gn+1     )%13;
00514             }else{       //QCIF
00515                 next_gn= (gn+1+!!gn)% 7;
00516             }
00517         }
00518     }
00519     if(valid_psc > 2*invalid_psc + 6){
00520         return 50;
00521     }else if(valid_psc > 2*invalid_psc + 2)
00522         return 25;
00523     return 0;
00524 }
00525 #endif
00526 
00527 #if CONFIG_DTS_DEMUXER
00528 #define DCA_MARKER_14B_BE 0x1FFFE800
00529 #define DCA_MARKER_14B_LE 0xFF1F00E8
00530 #define DCA_MARKER_RAW_BE 0x7FFE8001
00531 #define DCA_MARKER_RAW_LE 0xFE7F0180
00532 static int dts_probe(AVProbeData *p)
00533 {
00534     const uint8_t *buf, *bufp;
00535     uint32_t state = -1;
00536     int markers[3] = {0};
00537     int sum, max;
00538 
00539     buf = p->buf;
00540 
00541     for(; buf < (p->buf+p->buf_size)-2; buf+=2) {
00542         bufp = buf;
00543         state = (state << 16) | bytestream_get_be16(&bufp);
00544 
00545         /* regular bitstream */
00546         if (state == DCA_MARKER_RAW_BE || state == DCA_MARKER_RAW_LE)
00547             markers[0]++;
00548 
00549         /* 14 bits big-endian bitstream */
00550         if (state == DCA_MARKER_14B_BE)
00551             if ((bytestream_get_be16(&bufp) & 0xFFF0) == 0x07F0)
00552                 markers[1]++;
00553 
00554         /* 14 bits little-endian bitstream */
00555         if (state == DCA_MARKER_14B_LE)
00556             if ((bytestream_get_be16(&bufp) & 0xF0FF) == 0xF007)
00557                 markers[2]++;
00558     }
00559     sum = markers[0] + markers[1] + markers[2];
00560     max = markers[1] > markers[0];
00561     max = markers[2] > markers[max] ? 2 : max;
00562     if (markers[max] > 3 && p->buf_size / markers[max] < 32*1024 &&
00563         markers[max] * 4 > sum * 3)
00564         return AVPROBE_SCORE_MAX/2+1;
00565 
00566     return 0;
00567 }
00568 #endif
00569 
00570 #if CONFIG_DIRAC_DEMUXER
00571 static int dirac_probe(AVProbeData *p)
00572 {
00573     if (AV_RL32(p->buf) == MKTAG('B', 'B', 'C', 'D'))
00574         return AVPROBE_SCORE_MAX;
00575     else
00576         return 0;
00577 }
00578 #endif
00579 
00580 #if CONFIG_DNXHD_DEMUXER
00581 static int dnxhd_probe(AVProbeData *p)
00582 {
00583     static const uint8_t header[] = {0x00,0x00,0x02,0x80,0x01};
00584     int w, h, compression_id;
00585     if (p->buf_size < 0x2c)
00586         return 0;
00587     if (memcmp(p->buf, header, 5))
00588         return 0;
00589     h = AV_RB16(p->buf + 0x18);
00590     w = AV_RB16(p->buf + 0x1a);
00591     if (!w || !h)
00592         return 0;
00593     compression_id = AV_RB32(p->buf + 0x28);
00594     if (compression_id < 1237 || compression_id > 1253)
00595         return 0;
00596     return AVPROBE_SCORE_MAX;
00597 }
00598 #endif
00599 
00600 #if CONFIG_AC3_DEMUXER || CONFIG_EAC3_DEMUXER
00601 static int ac3_eac3_probe(AVProbeData *p, enum CodecID expected_codec_id)
00602 {
00603     int max_frames, first_frames = 0, frames;
00604     uint8_t *buf, *buf2, *end;
00605     AC3HeaderInfo hdr;
00606     GetBitContext gbc;
00607     enum CodecID codec_id = CODEC_ID_AC3;
00608 
00609     max_frames = 0;
00610     buf = p->buf;
00611     end = buf + p->buf_size;
00612 
00613     for(; buf < end; buf++) {
00614         buf2 = buf;
00615 
00616         for(frames = 0; buf2 < end; frames++) {
00617             init_get_bits(&gbc, buf2, 54);
00618             if(ff_ac3_parse_header(&gbc, &hdr) < 0)
00619                 break;
00620             if(buf2 + hdr.frame_size > end ||
00621                av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, buf2 + 2, hdr.frame_size - 2))
00622                 break;
00623             if (hdr.bitstream_id > 10)
00624                 codec_id = CODEC_ID_EAC3;
00625             buf2 += hdr.frame_size;
00626         }
00627         max_frames = FFMAX(max_frames, frames);
00628         if(buf == p->buf)
00629             first_frames = frames;
00630     }
00631     if(codec_id != expected_codec_id) return 0;
00632     // keep this in sync with mp3 probe, both need to avoid
00633     // issues with MPEG-files!
00634     if   (first_frames>=4) return AVPROBE_SCORE_MAX/2+1;
00635     else if(max_frames>500)return AVPROBE_SCORE_MAX/2;
00636     else if(max_frames>=4) return AVPROBE_SCORE_MAX/4;
00637     else if(max_frames>=1) return 1;
00638     else                   return 0;
00639 }
00640 #endif
00641 
00642 #if CONFIG_AC3_DEMUXER
00643 static int ac3_probe(AVProbeData *p)
00644 {
00645     return ac3_eac3_probe(p, CODEC_ID_AC3);
00646 }
00647 #endif
00648 
00649 #if CONFIG_EAC3_DEMUXER
00650 static int eac3_probe(AVProbeData *p)
00651 {
00652     return ac3_eac3_probe(p, CODEC_ID_EAC3);
00653 }
00654 #endif
00655 
00656 #if CONFIG_AAC_DEMUXER
00657 static int adts_aac_probe(AVProbeData *p)
00658 {
00659     int max_frames = 0, first_frames = 0;
00660     int fsize, frames;
00661     uint8_t *buf0 = p->buf;
00662     uint8_t *buf2;
00663     uint8_t *buf;
00664     uint8_t *end = buf0 + p->buf_size - 7;
00665 
00666     if (ff_id3v2_match(buf0)) {
00667         buf0 += ff_id3v2_tag_len(buf0);
00668     }
00669     buf = buf0;
00670 
00671     for(; buf < end; buf= buf2+1) {
00672         buf2 = buf;
00673 
00674         for(frames = 0; buf2 < end; frames++) {
00675             uint32_t header = AV_RB16(buf2);
00676             if((header&0xFFF6) != 0xFFF0)
00677                 break;
00678             fsize = (AV_RB32(buf2+3)>>13) & 0x8FFF;
00679             if(fsize < 7)
00680                 break;
00681             buf2 += fsize;
00682         }
00683         max_frames = FFMAX(max_frames, frames);
00684         if(buf == buf0)
00685             first_frames= frames;
00686     }
00687     if   (first_frames>=3) return AVPROBE_SCORE_MAX/2+1;
00688     else if(max_frames>500)return AVPROBE_SCORE_MAX/2;
00689     else if(max_frames>=3) return AVPROBE_SCORE_MAX/4;
00690     else if(max_frames>=1) return 1;
00691     else                   return 0;
00692 }
00693 
00694 static int adts_aac_read_header(AVFormatContext *s,
00695                                 AVFormatParameters *ap)
00696 {
00697     AVStream *st;
00698 
00699     st = av_new_stream(s, 0);
00700     if (!st)
00701         return AVERROR(ENOMEM);
00702 
00703     st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
00704     st->codec->codec_id = s->iformat->value;
00705     st->need_parsing = AVSTREAM_PARSE_FULL;
00706 
00707     ff_id3v1_read(s);
00708     ff_id3v2_read(s);
00709 
00710     return 0;
00711 }
00712 
00713 #endif
00714 
00715 /* Note: Do not forget to add new entries to the Makefile as well. */
00716 
00717 #if CONFIG_AAC_DEMUXER
00718 AVInputFormat aac_demuxer = {
00719     "aac",
00720     NULL_IF_CONFIG_SMALL("raw ADTS AAC"),
00721     0,
00722     adts_aac_probe,
00723     adts_aac_read_header,
00724     ff_raw_read_partial_packet,
00725     .flags= AVFMT_GENERIC_INDEX,
00726     .extensions = "aac",
00727     .value = CODEC_ID_AAC,
00728 };
00729 #endif
00730 
00731 #if CONFIG_AC3_DEMUXER
00732 AVInputFormat ac3_demuxer = {
00733     "ac3",
00734     NULL_IF_CONFIG_SMALL("raw AC-3"),
00735     0,
00736     ac3_probe,
00737     audio_read_header,
00738     ff_raw_read_partial_packet,
00739     .flags= AVFMT_GENERIC_INDEX,
00740     .extensions = "ac3",
00741     .value = CODEC_ID_AC3,
00742 };
00743 #endif
00744 
00745 #if CONFIG_AC3_MUXER
00746 AVOutputFormat ac3_muxer = {
00747     "ac3",
00748     NULL_IF_CONFIG_SMALL("raw AC-3"),
00749     "audio/x-ac3",
00750     "ac3",
00751     0,
00752     CODEC_ID_AC3,
00753     CODEC_ID_NONE,
00754     NULL,
00755     raw_write_packet,
00756     .flags= AVFMT_NOTIMESTAMPS,
00757 };
00758 #endif
00759 
00760 #if CONFIG_DIRAC_DEMUXER
00761 AVInputFormat dirac_demuxer = {
00762     "dirac",
00763     NULL_IF_CONFIG_SMALL("raw Dirac"),
00764     0,
00765     dirac_probe,
00766     video_read_header,
00767     ff_raw_read_partial_packet,
00768     .flags= AVFMT_GENERIC_INDEX,
00769     .value = CODEC_ID_DIRAC,
00770 };
00771 #endif
00772 
00773 #if CONFIG_DIRAC_MUXER
00774 AVOutputFormat dirac_muxer = {
00775     "dirac",
00776     NULL_IF_CONFIG_SMALL("raw Dirac"),
00777     NULL,
00778     "drc",
00779     0,
00780     CODEC_ID_NONE,
00781     CODEC_ID_DIRAC,
00782     NULL,
00783     raw_write_packet,
00784     .flags= AVFMT_NOTIMESTAMPS,
00785 };
00786 #endif
00787 
00788 #if CONFIG_DNXHD_DEMUXER
00789 AVInputFormat dnxhd_demuxer = {
00790     "dnxhd",
00791     NULL_IF_CONFIG_SMALL("raw DNxHD (SMPTE VC-3)"),
00792     0,
00793     dnxhd_probe,
00794     video_read_header,
00795     ff_raw_read_partial_packet,
00796     .flags= AVFMT_GENERIC_INDEX,
00797     .value = CODEC_ID_DNXHD,
00798 };
00799 #endif
00800 
00801 #if CONFIG_DNXHD_MUXER
00802 AVOutputFormat dnxhd_muxer = {
00803     "dnxhd",
00804     NULL_IF_CONFIG_SMALL("raw DNxHD (SMPTE VC-3)"),
00805     NULL,
00806     "dnxhd",
00807     0,
00808     CODEC_ID_NONE,
00809     CODEC_ID_DNXHD,
00810     NULL,
00811     raw_write_packet,
00812     .flags= AVFMT_NOTIMESTAMPS,
00813 };
00814 #endif
00815 
00816 #if CONFIG_DTS_DEMUXER
00817 AVInputFormat dts_demuxer = {
00818     "dts",
00819     NULL_IF_CONFIG_SMALL("raw DTS"),
00820     0,
00821     dts_probe,
00822     audio_read_header,
00823     ff_raw_read_partial_packet,
00824     .flags= AVFMT_GENERIC_INDEX,
00825     .extensions = "dts",
00826     .value = CODEC_ID_DTS,
00827 };
00828 #endif
00829 
00830 #if CONFIG_DTS_MUXER
00831 AVOutputFormat dts_muxer = {
00832     "dts",
00833     NULL_IF_CONFIG_SMALL("raw DTS"),
00834     "audio/x-dca",
00835     "dts",
00836     0,
00837     CODEC_ID_DTS,
00838     CODEC_ID_NONE,
00839     NULL,
00840     raw_write_packet,
00841     .flags= AVFMT_NOTIMESTAMPS,
00842 };
00843 #endif
00844 
00845 #if CONFIG_EAC3_DEMUXER
00846 AVInputFormat eac3_demuxer = {
00847     "eac3",
00848     NULL_IF_CONFIG_SMALL("raw E-AC-3"),
00849     0,
00850     eac3_probe,
00851     audio_read_header,
00852     ff_raw_read_partial_packet,
00853     .flags= AVFMT_GENERIC_INDEX,
00854     .extensions = "eac3",
00855     .value = CODEC_ID_EAC3,
00856 };
00857 #endif
00858 
00859 #if CONFIG_EAC3_MUXER
00860 AVOutputFormat eac3_muxer = {
00861     "eac3",
00862     NULL_IF_CONFIG_SMALL("raw E-AC-3"),
00863     "audio/x-eac3",
00864     "eac3",
00865     0,
00866     CODEC_ID_EAC3,
00867     CODEC_ID_NONE,
00868     NULL,
00869     raw_write_packet,
00870     .flags= AVFMT_NOTIMESTAMPS,
00871 };
00872 #endif
00873 
00874 #if CONFIG_GSM_DEMUXER
00875 AVInputFormat gsm_demuxer = {
00876     "gsm",
00877     NULL_IF_CONFIG_SMALL("raw GSM"),
00878     0,
00879     NULL,
00880     audio_read_header,
00881     ff_raw_read_partial_packet,
00882     .flags= AVFMT_GENERIC_INDEX,
00883     .extensions = "gsm",
00884     .value = CODEC_ID_GSM,
00885 };
00886 #endif
00887 
00888 #if CONFIG_H261_DEMUXER
00889 AVInputFormat h261_demuxer = {
00890     "h261",
00891     NULL_IF_CONFIG_SMALL("raw H.261"),
00892     0,
00893     h261_probe,
00894     video_read_header,
00895     ff_raw_read_partial_packet,
00896     .flags= AVFMT_GENERIC_INDEX,
00897     .extensions = "h261",
00898     .value = CODEC_ID_H261,
00899 };
00900 #endif
00901 
00902 #if CONFIG_H261_MUXER
00903 AVOutputFormat h261_muxer = {
00904     "h261",
00905     NULL_IF_CONFIG_SMALL("raw H.261"),
00906     "video/x-h261",
00907     "h261",
00908     0,
00909     CODEC_ID_NONE,
00910     CODEC_ID_H261,
00911     NULL,
00912     raw_write_packet,
00913     .flags= AVFMT_NOTIMESTAMPS,
00914 };
00915 #endif
00916 
00917 #if CONFIG_H263_DEMUXER
00918 AVInputFormat h263_demuxer = {
00919     "h263",
00920     NULL_IF_CONFIG_SMALL("raw H.263"),
00921     0,
00922     h263_probe,
00923     video_read_header,
00924     ff_raw_read_partial_packet,
00925     .flags= AVFMT_GENERIC_INDEX,
00926 //    .extensions = "h263", //FIXME remove after writing mpeg4_probe
00927     .value = CODEC_ID_H263,
00928 };
00929 #endif
00930 
00931 #if CONFIG_H263_MUXER
00932 AVOutputFormat h263_muxer = {
00933     "h263",
00934     NULL_IF_CONFIG_SMALL("raw H.263"),
00935     "video/x-h263",
00936     "h263",
00937     0,
00938     CODEC_ID_NONE,
00939     CODEC_ID_H263,
00940     NULL,
00941     raw_write_packet,
00942     .flags= AVFMT_NOTIMESTAMPS,
00943 };
00944 #endif
00945 
00946 #if CONFIG_H264_DEMUXER
00947 AVInputFormat h264_demuxer = {
00948     "h264",
00949     NULL_IF_CONFIG_SMALL("raw H.264 video format"),
00950     0,
00951     h264_probe,
00952     video_read_header,
00953     ff_raw_read_partial_packet,
00954     .flags= AVFMT_GENERIC_INDEX,
00955     .extensions = "h26l,h264,264", //FIXME remove after writing mpeg4_probe
00956     .value = CODEC_ID_H264,
00957 };
00958 #endif
00959 
00960 #if CONFIG_H264_MUXER
00961 AVOutputFormat h264_muxer = {
00962     "h264",
00963     NULL_IF_CONFIG_SMALL("raw H.264 video format"),
00964     NULL,
00965     "h264",
00966     0,
00967     CODEC_ID_NONE,
00968     CODEC_ID_H264,
00969     NULL,
00970     raw_write_packet,
00971     .flags= AVFMT_NOTIMESTAMPS,
00972 };
00973 #endif
00974 
00975 #if CONFIG_INGENIENT_DEMUXER
00976 AVInputFormat ingenient_demuxer = {
00977     "ingenient",
00978     NULL_IF_CONFIG_SMALL("raw Ingenient MJPEG"),
00979     0,
00980     NULL,
00981     video_read_header,
00982     ingenient_read_packet,
00983     .flags= AVFMT_GENERIC_INDEX,
00984     .extensions = "cgi", // FIXME
00985     .value = CODEC_ID_MJPEG,
00986 };
00987 #endif
00988 
00989 #if CONFIG_M4V_DEMUXER
00990 AVInputFormat m4v_demuxer = {
00991     "m4v",
00992     NULL_IF_CONFIG_SMALL("raw MPEG-4 video format"),
00993     0,
00994     mpeg4video_probe, 
00995     video_read_header,
00996     ff_raw_read_partial_packet,
00997     .flags= AVFMT_GENERIC_INDEX,
00998     .extensions = "m4v",
00999     .value = CODEC_ID_MPEG4,
01000 };
01001 #endif
01002 
01003 #if CONFIG_M4V_MUXER
01004 AVOutputFormat m4v_muxer = {
01005     "m4v",
01006     NULL_IF_CONFIG_SMALL("raw MPEG-4 video format"),
01007     NULL,
01008     "m4v",
01009     0,
01010     CODEC_ID_NONE,
01011     CODEC_ID_MPEG4,
01012     NULL,
01013     raw_write_packet,
01014     .flags= AVFMT_NOTIMESTAMPS,
01015 };
01016 #endif
01017 
01018 #if CONFIG_MJPEG_DEMUXER
01019 AVInputFormat mjpeg_demuxer = {
01020     "mjpeg",
01021     NULL_IF_CONFIG_SMALL("raw MJPEG video"),
01022     0,
01023     NULL,
01024     video_read_header,
01025     ff_raw_read_partial_packet,
01026     .flags= AVFMT_GENERIC_INDEX,
01027     .extensions = "mjpg,mjpeg",
01028     .value = CODEC_ID_MJPEG,
01029 };
01030 #endif
01031 
01032 #if CONFIG_MJPEG_MUXER
01033 AVOutputFormat mjpeg_muxer = {
01034     "mjpeg",
01035     NULL_IF_CONFIG_SMALL("raw MJPEG video"),
01036     "video/x-mjpeg",
01037     "mjpg,mjpeg",
01038     0,
01039     CODEC_ID_NONE,
01040     CODEC_ID_MJPEG,
01041     NULL,
01042     raw_write_packet,
01043     .flags= AVFMT_NOTIMESTAMPS,
01044 };
01045 #endif
01046 
01047 #if CONFIG_MLP_DEMUXER
01048 AVInputFormat mlp_demuxer = {
01049     "mlp",
01050     NULL_IF_CONFIG_SMALL("raw MLP"),
01051     0,
01052     NULL,
01053     audio_read_header,
01054     ff_raw_read_partial_packet,
01055     .flags= AVFMT_GENERIC_INDEX,
01056     .extensions = "mlp",
01057     .value = CODEC_ID_MLP,
01058 };
01059 #endif
01060 
01061 #if CONFIG_MLP_MUXER
01062 AVOutputFormat mlp_muxer = {
01063     "mlp",
01064     NULL_IF_CONFIG_SMALL("raw MLP"),
01065     NULL,
01066     "mlp",
01067     0,
01068     CODEC_ID_MLP,
01069     CODEC_ID_NONE,
01070     NULL,
01071     raw_write_packet,
01072     .flags= AVFMT_NOTIMESTAMPS,
01073 };
01074 #endif
01075 
01076 #if CONFIG_TRUEHD_DEMUXER
01077 AVInputFormat truehd_demuxer = {
01078     "truehd",
01079     NULL_IF_CONFIG_SMALL("raw TrueHD"),
01080     0,
01081     NULL,
01082     audio_read_header,
01083     ff_raw_read_partial_packet,
01084     .flags= AVFMT_GENERIC_INDEX,
01085     .extensions = "thd",
01086     .value = CODEC_ID_TRUEHD,
01087 };
01088 #endif
01089 
01090 #if CONFIG_TRUEHD_MUXER
01091 AVOutputFormat truehd_muxer = {
01092     "truehd",
01093     NULL_IF_CONFIG_SMALL("raw TrueHD"),
01094     NULL,
01095     "thd",
01096     0,
01097     CODEC_ID_TRUEHD,
01098     CODEC_ID_NONE,
01099     NULL,
01100     raw_write_packet,
01101     .flags= AVFMT_NOTIMESTAMPS,
01102 };
01103 #endif
01104 
01105 #if CONFIG_MPEG1VIDEO_MUXER
01106 AVOutputFormat mpeg1video_muxer = {
01107     "mpeg1video",
01108     NULL_IF_CONFIG_SMALL("raw MPEG-1 video"),
01109     "video/x-mpeg",
01110     "mpg,mpeg,m1v",
01111     0,
01112     CODEC_ID_NONE,
01113     CODEC_ID_MPEG1VIDEO,
01114     NULL,
01115     raw_write_packet,
01116     .flags= AVFMT_NOTIMESTAMPS,
01117 };
01118 #endif
01119 
01120 #if CONFIG_MPEG2VIDEO_MUXER
01121 AVOutputFormat mpeg2video_muxer = {
01122     "mpeg2video",
01123     NULL_IF_CONFIG_SMALL("raw MPEG-2 video"),
01124     NULL,
01125     "m2v",
01126     0,
01127     CODEC_ID_NONE,
01128     CODEC_ID_MPEG2VIDEO,
01129     NULL,
01130     raw_write_packet,
01131     .flags= AVFMT_NOTIMESTAMPS,
01132 };
01133 #endif
01134 
01135 #if CONFIG_MPEGVIDEO_DEMUXER
01136 AVInputFormat mpegvideo_demuxer = {
01137     "mpegvideo",
01138     NULL_IF_CONFIG_SMALL("raw MPEG video"),
01139     0,
01140     mpegvideo_probe,
01141     video_read_header,
01142     ff_raw_read_partial_packet,
01143     .flags= AVFMT_GENERIC_INDEX,
01144     .value = CODEC_ID_MPEG1VIDEO,
01145 };
01146 #endif
01147 
01148 #if CONFIG_CAVSVIDEO_DEMUXER
01149 AVInputFormat cavsvideo_demuxer = {
01150     "cavsvideo",
01151     NULL_IF_CONFIG_SMALL("raw Chinese AVS video"),
01152     0,
01153     cavsvideo_probe,
01154     video_read_header,
01155     ff_raw_read_partial_packet,
01156     .flags= AVFMT_GENERIC_INDEX,
01157     .value = CODEC_ID_CAVS,
01158 };
01159 #endif
01160 
01161 #if CONFIG_NULL_MUXER
01162 AVOutputFormat null_muxer = {
01163     "null",
01164     NULL_IF_CONFIG_SMALL("raw null video format"),
01165     NULL,
01166     NULL,
01167     0,
01168 #if HAVE_BIGENDIAN
01169     CODEC_ID_PCM_S16BE,
01170 #else
01171     CODEC_ID_PCM_S16LE,
01172 #endif
01173     CODEC_ID_RAWVIDEO,
01174     NULL,
01175     null_write_packet,
01176     .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE | AVFMT_NOTIMESTAMPS,
01177 };
01178 #endif
01179 
01180 #if CONFIG_RAWVIDEO_DEMUXER
01181 AVInputFormat rawvideo_demuxer = {
01182     "rawvideo",
01183     NULL_IF_CONFIG_SMALL("raw video format"),
01184     0,
01185     NULL,
01186     raw_read_header,
01187     rawvideo_read_packet,
01188     .flags= AVFMT_GENERIC_INDEX,
01189     .extensions = "yuv,cif,qcif,rgb",
01190     .value = CODEC_ID_RAWVIDEO,
01191 };
01192 #endif
01193 
01194 #if CONFIG_RAWVIDEO_MUXER
01195 AVOutputFormat rawvideo_muxer = {
01196     "rawvideo",
01197     NULL_IF_CONFIG_SMALL("raw video format"),
01198     NULL,
01199     "yuv,rgb",
01200     0,
01201     CODEC_ID_NONE,
01202     CODEC_ID_RAWVIDEO,
01203     NULL,
01204     raw_write_packet,
01205     .flags= AVFMT_NOTIMESTAMPS,
01206 };
01207 #endif
01208 
01209 #if CONFIG_ROQ_MUXER
01210 AVOutputFormat roq_muxer =
01211 {
01212     "RoQ",
01213     NULL_IF_CONFIG_SMALL("raw id RoQ format"),
01214     NULL,
01215     "roq",
01216     0,
01217     CODEC_ID_ROQ_DPCM,
01218     CODEC_ID_ROQ,
01219     roq_write_header,
01220     raw_write_packet,
01221 };
01222 #endif
01223 
01224 #if CONFIG_SHORTEN_DEMUXER
01225 AVInputFormat shorten_demuxer = {
01226     "shn",
01227     NULL_IF_CONFIG_SMALL("raw Shorten"),
01228     0,
01229     NULL,
01230     audio_read_header,
01231     ff_raw_read_partial_packet,
01232     .flags= AVFMT_GENERIC_INDEX,
01233     .extensions = "shn",
01234     .value = CODEC_ID_SHORTEN,
01235 };
01236 #endif
01237 
01238 #if CONFIG_VC1_DEMUXER
01239 AVInputFormat vc1_demuxer = {
01240     "vc1",
01241     NULL_IF_CONFIG_SMALL("raw VC-1"),
01242     0,
01243     NULL /* vc1_probe */,
01244     video_read_header,
01245     ff_raw_read_partial_packet,
01246     .extensions = "vc1",
01247     .value = CODEC_ID_VC1,
01248 };
01249 #endif
01250 
01251 /* PCM formats */
01252 
01253 #define PCMINPUTDEF(name, long_name, ext, codec) \
01254 AVInputFormat pcm_ ## name ## _demuxer = {\
01255     #name,\
01256     NULL_IF_CONFIG_SMALL(long_name),\
01257     0,\
01258     NULL,\
01259     raw_read_header,\
01260     raw_read_packet,\
01261     NULL,\
01262     pcm_read_seek,\
01263     .flags= AVFMT_GENERIC_INDEX,\
01264     .extensions = ext,\
01265     .value = codec,\
01266 };
01267 
01268 #define PCMOUTPUTDEF(name, long_name, ext, codec) \
01269 AVOutputFormat pcm_ ## name ## _muxer = {\
01270     #name,\
01271     NULL_IF_CONFIG_SMALL(long_name),\
01272     NULL,\
01273     ext,\
01274     0,\
01275     codec,\
01276     CODEC_ID_NONE,\
01277     NULL,\
01278     raw_write_packet,\
01279     .flags= AVFMT_NOTIMESTAMPS,\
01280 };
01281 
01282 
01283 #if  !CONFIG_MUXERS && CONFIG_DEMUXERS
01284 #define PCMDEF(name, long_name, ext, codec) \
01285         PCMINPUTDEF(name, long_name, ext, codec)
01286 #elif CONFIG_MUXERS && !CONFIG_DEMUXERS
01287 #define PCMDEF(name, long_name, ext, codec) \
01288         PCMOUTPUTDEF(name, long_name, ext, codec)
01289 #elif CONFIG_MUXERS && CONFIG_DEMUXERS
01290 #define PCMDEF(name, long_name, ext, codec) \
01291         PCMINPUTDEF(name, long_name, ext, codec)\
01292         PCMOUTPUTDEF(name, long_name, ext, codec)
01293 #else
01294 #define PCMDEF(name, long_name, ext, codec)
01295 #endif
01296 
01297 #if HAVE_BIGENDIAN
01298 #define BE_DEF(s) s
01299 #define LE_DEF(s) NULL
01300 #else
01301 #define BE_DEF(s) NULL
01302 #define LE_DEF(s) s
01303 #endif
01304 
01305 PCMDEF(f64be, "PCM 64 bit floating-point big-endian format",
01306        NULL, CODEC_ID_PCM_F64BE)
01307 
01308 PCMDEF(f64le, "PCM 64 bit floating-point little-endian format",
01309        NULL, CODEC_ID_PCM_F64LE)
01310 
01311 PCMDEF(f32be, "PCM 32 bit floating-point big-endian format",
01312        NULL, CODEC_ID_PCM_F32BE)
01313 
01314 PCMDEF(f32le, "PCM 32 bit floating-point little-endian format",
01315        NULL, CODEC_ID_PCM_F32LE)
01316 
01317 PCMDEF(s32be, "PCM signed 32 bit big-endian format",
01318        NULL, CODEC_ID_PCM_S32BE)
01319 
01320 PCMDEF(s32le, "PCM signed 32 bit little-endian format",
01321        NULL, CODEC_ID_PCM_S32LE)
01322 
01323 PCMDEF(s24be, "PCM signed 24 bit big-endian format",
01324        NULL, CODEC_ID_PCM_S24BE)
01325 
01326 PCMDEF(s24le, "PCM signed 24 bit little-endian format",
01327        NULL, CODEC_ID_PCM_S24LE)
01328 
01329 PCMDEF(s16be, "PCM signed 16 bit big-endian format",
01330        BE_DEF("sw"), CODEC_ID_PCM_S16BE)
01331 
01332 PCMDEF(s16le, "PCM signed 16 bit little-endian format",
01333        LE_DEF("sw"), CODEC_ID_PCM_S16LE)
01334 
01335 PCMDEF(s8, "PCM signed 8 bit format",
01336        "sb", CODEC_ID_PCM_S8)
01337 
01338 PCMDEF(u32be, "PCM unsigned 32 bit big-endian format",
01339        NULL, CODEC_ID_PCM_U32BE)
01340 
01341 PCMDEF(u32le, "PCM unsigned 32 bit little-endian format",
01342        NULL, CODEC_ID_PCM_U32LE)
01343 
01344 PCMDEF(u24be, "PCM unsigned 24 bit big-endian format",
01345        NULL, CODEC_ID_PCM_U24BE)
01346 
01347 PCMDEF(u24le, "PCM unsigned 24 bit little-endian format",
01348        NULL, CODEC_ID_PCM_U24LE)
01349 
01350 PCMDEF(u16be, "PCM unsigned 16 bit big-endian format",
01351        BE_DEF("uw"), CODEC_ID_PCM_U16BE)
01352 
01353 PCMDEF(u16le, "PCM unsigned 16 bit little-endian format",
01354        LE_DEF("uw"), CODEC_ID_PCM_U16LE)
01355 
01356 PCMDEF(u8, "PCM unsigned 8 bit format",
01357        "ub", CODEC_ID_PCM_U8)
01358 
01359 PCMDEF(alaw, "PCM A-law format",
01360        "al", CODEC_ID_PCM_ALAW)
01361 
01362 PCMDEF(mulaw, "PCM mu-law format",
01363        "ul", CODEC_ID_PCM_MULAW)