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00028 #include "libavutil/avstring.h"
00029 #include "libavutil/integer.h"
00030 #include "libavutil/crc.h"
00031 #include "libavutil/pixdesc.h"
00032 #include "libavutil/audioconvert.h"
00033 #include "libavutil/imgutils.h"
00034 #include "libavutil/samplefmt.h"
00035 #include "libavutil/dict.h"
00036 #include "avcodec.h"
00037 #include "dsputil.h"
00038 #include "libavutil/opt.h"
00039 #include "imgconvert.h"
00040 #include "thread.h"
00041 #include "audioconvert.h"
00042 #include "internal.h"
00043 #include <stdlib.h>
00044 #include <stdarg.h>
00045 #include <limits.h>
00046 #include <float.h>
00047
00048 static int volatile entangled_thread_counter=0;
00049 static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
00050 static void *codec_mutex;
00051
00052 void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
00053 {
00054 if(min_size < *size)
00055 return ptr;
00056
00057 min_size= FFMAX(17*min_size/16 + 32, min_size);
00058
00059 ptr= av_realloc(ptr, min_size);
00060 if(!ptr)
00061 min_size= 0;
00062
00063 *size= min_size;
00064
00065 return ptr;
00066 }
00067
00068 void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)
00069 {
00070 void **p = ptr;
00071 if (min_size < *size)
00072 return;
00073 min_size= FFMAX(17*min_size/16 + 32, min_size);
00074 av_free(*p);
00075 *p = av_malloc(min_size);
00076 if (!*p) min_size = 0;
00077 *size= min_size;
00078 }
00079
00080
00081 static AVCodec *first_avcodec = NULL;
00082
00083 AVCodec *av_codec_next(AVCodec *c){
00084 if(c) return c->next;
00085 else return first_avcodec;
00086 }
00087
00088 void avcodec_register(AVCodec *codec)
00089 {
00090 AVCodec **p;
00091 avcodec_init();
00092 p = &first_avcodec;
00093 while (*p != NULL) p = &(*p)->next;
00094 *p = codec;
00095 codec->next = NULL;
00096 }
00097
00098 #if LIBAVCODEC_VERSION_MAJOR < 53
00099 void register_avcodec(AVCodec *codec)
00100 {
00101 avcodec_register(codec);
00102 }
00103 #endif
00104
00105 unsigned avcodec_get_edge_width(void)
00106 {
00107 return EDGE_WIDTH;
00108 }
00109
00110 void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
00111 s->coded_width = width;
00112 s->coded_height= height;
00113 s->width = -((-width )>>s->lowres);
00114 s->height= -((-height)>>s->lowres);
00115 }
00116
00117 typedef struct InternalBuffer{
00118 int last_pic_num;
00119 uint8_t *base[4];
00120 uint8_t *data[4];
00121 int linesize[4];
00122 int width, height;
00123 enum PixelFormat pix_fmt;
00124 }InternalBuffer;
00125
00126 #define INTERNAL_BUFFER_SIZE (32+1)
00127
00128 void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, int linesize_align[4]){
00129 int w_align= 1;
00130 int h_align= 1;
00131
00132 switch(s->pix_fmt){
00133 case PIX_FMT_YUV420P:
00134 case PIX_FMT_YUYV422:
00135 case PIX_FMT_UYVY422:
00136 case PIX_FMT_YUV422P:
00137 case PIX_FMT_YUV440P:
00138 case PIX_FMT_YUV444P:
00139 case PIX_FMT_GRAY8:
00140 case PIX_FMT_GRAY16BE:
00141 case PIX_FMT_GRAY16LE:
00142 case PIX_FMT_YUVJ420P:
00143 case PIX_FMT_YUVJ422P:
00144 case PIX_FMT_YUVJ440P:
00145 case PIX_FMT_YUVJ444P:
00146 case PIX_FMT_YUVA420P:
00147 case PIX_FMT_YUV420P9LE:
00148 case PIX_FMT_YUV420P9BE:
00149 case PIX_FMT_YUV420P10LE:
00150 case PIX_FMT_YUV420P10BE:
00151 case PIX_FMT_YUV422P10LE:
00152 case PIX_FMT_YUV422P10BE:
00153 case PIX_FMT_YUV444P9LE:
00154 case PIX_FMT_YUV444P9BE:
00155 case PIX_FMT_YUV444P10LE:
00156 case PIX_FMT_YUV444P10BE:
00157 w_align= 16;
00158 h_align= 16;
00159 if(s->codec_id == CODEC_ID_MPEG2VIDEO || s->codec_id == CODEC_ID_MJPEG || s->codec_id == CODEC_ID_AMV || s->codec_id == CODEC_ID_THP || s->codec_id == CODEC_ID_H264)
00160 h_align= 32;
00161 break;
00162 case PIX_FMT_YUV411P:
00163 case PIX_FMT_UYYVYY411:
00164 w_align=32;
00165 h_align=8;
00166 break;
00167 case PIX_FMT_YUV410P:
00168 if(s->codec_id == CODEC_ID_SVQ1){
00169 w_align=64;
00170 h_align=64;
00171 }
00172 case PIX_FMT_RGB555:
00173 if(s->codec_id == CODEC_ID_RPZA){
00174 w_align=4;
00175 h_align=4;
00176 }
00177 case PIX_FMT_PAL8:
00178 case PIX_FMT_BGR8:
00179 case PIX_FMT_RGB8:
00180 if (s->codec_id == CODEC_ID_SMC ||
00181 s->codec_id == CODEC_ID_CINEPAK) {
00182 w_align = 4;
00183 h_align = 4;
00184 }
00185 break;
00186 case PIX_FMT_BGR24:
00187 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
00188 w_align=4;
00189 h_align=4;
00190 }
00191 break;
00192 case PIX_FMT_RGB24:
00193 if (s->codec_id == CODEC_ID_CINEPAK) {
00194 w_align = 4;
00195 h_align = 4;
00196 }
00197 break;
00198 default:
00199 w_align= 1;
00200 h_align= 1;
00201 break;
00202 }
00203
00204 *width = FFALIGN(*width , w_align);
00205 *height= FFALIGN(*height, h_align);
00206 if(s->codec_id == CODEC_ID_H264 || s->lowres)
00207 *height+=2;
00208
00209
00210 linesize_align[0] =
00211 linesize_align[1] =
00212 linesize_align[2] =
00213 linesize_align[3] = STRIDE_ALIGN;
00214
00215
00216
00217
00218 #if HAVE_MMX
00219 if(s->codec_id == CODEC_ID_SVQ1 || s->codec_id == CODEC_ID_VP5 ||
00220 s->codec_id == CODEC_ID_VP6 || s->codec_id == CODEC_ID_VP6F ||
00221 s->codec_id == CODEC_ID_VP6A) {
00222 linesize_align[0] =
00223 linesize_align[1] =
00224 linesize_align[2] = 16;
00225 }
00226 #endif
00227 }
00228
00229 void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
00230 int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].log2_chroma_w;
00231 int linesize_align[4];
00232 int align;
00233 avcodec_align_dimensions2(s, width, height, linesize_align);
00234 align = FFMAX(linesize_align[0], linesize_align[3]);
00235 linesize_align[1] <<= chroma_shift;
00236 linesize_align[2] <<= chroma_shift;
00237 align = FFMAX3(align, linesize_align[1], linesize_align[2]);
00238 *width=FFALIGN(*width, align);
00239 }
00240
00241 #if LIBAVCODEC_VERSION_MAJOR < 53
00242 int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
00243 return av_image_check_size(w, h, 0, av_log_ctx);
00244 }
00245 #endif
00246
00247 int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
00248 int i;
00249 int w= s->width;
00250 int h= s->height;
00251 InternalBuffer *buf;
00252 int *picture_number;
00253
00254 if(pic->data[0]!=NULL) {
00255 av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
00256 return -1;
00257 }
00258 if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
00259 av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
00260 return -1;
00261 }
00262
00263 if(av_image_check_size(w, h, 0, s))
00264 return -1;
00265
00266 if(s->internal_buffer==NULL){
00267 s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
00268 }
00269 #if 0
00270 s->internal_buffer= av_fast_realloc(
00271 s->internal_buffer,
00272 &s->internal_buffer_size,
00273 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)
00274 );
00275 #endif
00276
00277 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
00278 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num;
00279 (*picture_number)++;
00280
00281 if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
00282 if(s->active_thread_type&FF_THREAD_FRAME) {
00283 av_log_missing_feature(s, "Width/height changing with frame threads is", 0);
00284 return -1;
00285 }
00286
00287 for(i=0; i<4; i++){
00288 av_freep(&buf->base[i]);
00289 buf->data[i]= NULL;
00290 }
00291 }
00292
00293 if(buf->base[0]){
00294 pic->age= *picture_number - buf->last_pic_num;
00295 buf->last_pic_num= *picture_number;
00296 }else{
00297 int h_chroma_shift, v_chroma_shift;
00298 int size[4] = {0};
00299 int tmpsize;
00300 int unaligned;
00301 AVPicture picture;
00302 int stride_align[4];
00303 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
00304
00305 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
00306
00307 avcodec_align_dimensions2(s, &w, &h, stride_align);
00308
00309 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
00310 w+= EDGE_WIDTH*2;
00311 h+= EDGE_WIDTH*2;
00312 }
00313
00314 do {
00315
00316
00317 av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
00318
00319 w += w & ~(w-1);
00320
00321 unaligned = 0;
00322 for (i=0; i<4; i++){
00323 unaligned |= picture.linesize[i] % stride_align[i];
00324 }
00325 } while (unaligned);
00326
00327 tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
00328 if (tmpsize < 0)
00329 return -1;
00330
00331 for (i=0; i<3 && picture.data[i+1]; i++)
00332 size[i] = picture.data[i+1] - picture.data[i];
00333 size[i] = tmpsize - (picture.data[i] - picture.data[0]);
00334
00335 buf->last_pic_num= -256*256*256*64;
00336 memset(buf->base, 0, sizeof(buf->base));
00337 memset(buf->data, 0, sizeof(buf->data));
00338
00339 for(i=0; i<4 && size[i]; i++){
00340 const int h_shift= i==0 ? 0 : h_chroma_shift;
00341 const int v_shift= i==0 ? 0 : v_chroma_shift;
00342
00343 buf->linesize[i]= picture.linesize[i];
00344
00345 buf->base[i]= av_malloc(size[i]+16);
00346 if(buf->base[i]==NULL) return -1;
00347 memset(buf->base[i], 128, size[i]);
00348
00349
00350 if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
00351 buf->data[i] = buf->base[i];
00352 else
00353 buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
00354 }
00355 if(size[1] && !size[2])
00356 ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
00357 buf->width = s->width;
00358 buf->height = s->height;
00359 buf->pix_fmt= s->pix_fmt;
00360 pic->age= 256*256*256*64;
00361 }
00362 pic->type= FF_BUFFER_TYPE_INTERNAL;
00363
00364 for(i=0; i<4; i++){
00365 pic->base[i]= buf->base[i];
00366 pic->data[i]= buf->data[i];
00367 pic->linesize[i]= buf->linesize[i];
00368 }
00369 s->internal_buffer_count++;
00370
00371 if (s->pkt) {
00372 pic->pkt_pts = s->pkt->pts;
00373 pic->pkt_pos = s->pkt->pos;
00374 } else {
00375 pic->pkt_pts = AV_NOPTS_VALUE;
00376 pic->pkt_pos = -1;
00377 }
00378 pic->reordered_opaque= s->reordered_opaque;
00379 pic->sample_aspect_ratio = s->sample_aspect_ratio;
00380 pic->width = s->width;
00381 pic->height = s->height;
00382 pic->format = s->pix_fmt;
00383
00384 if(s->debug&FF_DEBUG_BUFFERS)
00385 av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
00386
00387 return 0;
00388 }
00389
00390 void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
00391 int i;
00392 InternalBuffer *buf, *last;
00393
00394 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
00395 assert(s->internal_buffer_count);
00396
00397 if(s->internal_buffer){
00398 buf = NULL;
00399 for(i=0; i<s->internal_buffer_count; i++){
00400 buf= &((InternalBuffer*)s->internal_buffer)[i];
00401 if(buf->data[0] == pic->data[0])
00402 break;
00403 }
00404 assert(i < s->internal_buffer_count);
00405 s->internal_buffer_count--;
00406 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
00407
00408 FFSWAP(InternalBuffer, *buf, *last);
00409 }
00410
00411 for(i=0; i<4; i++){
00412 pic->data[i]=NULL;
00413
00414 }
00415
00416
00417 if(s->debug&FF_DEBUG_BUFFERS)
00418 av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
00419 }
00420
00421 int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
00422 AVFrame temp_pic;
00423 int i;
00424
00425
00426 if(pic->data[0] == NULL) {
00427
00428 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
00429 return s->get_buffer(s, pic);
00430 }
00431
00432
00433 if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
00434 if(s->pkt) pic->pkt_pts= s->pkt->pts;
00435 else pic->pkt_pts= AV_NOPTS_VALUE;
00436 pic->reordered_opaque= s->reordered_opaque;
00437 return 0;
00438 }
00439
00440
00441
00442
00443 temp_pic = *pic;
00444 for(i = 0; i < 4; i++)
00445 pic->data[i] = pic->base[i] = NULL;
00446 pic->opaque = NULL;
00447
00448 if (s->get_buffer(s, pic))
00449 return -1;
00450
00451 av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
00452 s->height);
00453 s->release_buffer(s, &temp_pic);
00454 return 0;
00455 }
00456
00457 int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
00458 int i;
00459
00460 for(i=0; i<count; i++){
00461 int r= func(c, (char*)arg + i*size);
00462 if(ret) ret[i]= r;
00463 }
00464 return 0;
00465 }
00466
00467 int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr),void *arg, int *ret, int count){
00468 int i;
00469
00470 for(i=0; i<count; i++){
00471 int r= func(c, arg, i, 0);
00472 if(ret) ret[i]= r;
00473 }
00474 return 0;
00475 }
00476
00477 enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
00478 while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
00479 ++fmt;
00480 return fmt[0];
00481 }
00482
00483 void avcodec_get_frame_defaults(AVFrame *pic){
00484 memset(pic, 0, sizeof(AVFrame));
00485
00486 pic->pts = pic->best_effort_timestamp = AV_NOPTS_VALUE;
00487 pic->pkt_pos = -1;
00488 pic->key_frame= 1;
00489 pic->sample_aspect_ratio = (AVRational){0, 1};
00490 pic->format = -1;
00491 }
00492
00493 AVFrame *avcodec_alloc_frame(void){
00494 AVFrame *pic= av_malloc(sizeof(AVFrame));
00495
00496 if(pic==NULL) return NULL;
00497
00498 avcodec_get_frame_defaults(pic);
00499
00500 return pic;
00501 }
00502
00503 static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
00504 {
00505 memset(sub, 0, sizeof(*sub));
00506 sub->pts = AV_NOPTS_VALUE;
00507 }
00508
00509 #if FF_API_AVCODEC_OPEN
00510 int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
00511 {
00512 return avcodec_open2(avctx, codec, NULL);
00513 }
00514 #endif
00515
00516 int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options)
00517 {
00518 int ret = 0;
00519 AVDictionary *tmp = NULL;
00520
00521 if (options)
00522 av_dict_copy(&tmp, *options, 0);
00523
00524
00525 if (ff_lockmgr_cb) {
00526 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
00527 return -1;
00528 }
00529
00530 entangled_thread_counter++;
00531 if(entangled_thread_counter != 1){
00532 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
00533 ret = -1;
00534 goto end;
00535 }
00536
00537 if(avctx->codec || !codec) {
00538 ret = AVERROR(EINVAL);
00539 goto end;
00540 }
00541
00542 if (codec->priv_data_size > 0) {
00543 if(!avctx->priv_data){
00544 avctx->priv_data = av_mallocz(codec->priv_data_size);
00545 if (!avctx->priv_data) {
00546 ret = AVERROR(ENOMEM);
00547 goto end;
00548 }
00549 if (codec->priv_class) {
00550 *(AVClass**)avctx->priv_data= codec->priv_class;
00551 av_opt_set_defaults(avctx->priv_data);
00552 }
00553 }
00554 if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
00555 goto free_and_end;
00556 } else {
00557 avctx->priv_data = NULL;
00558 }
00559 if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
00560 goto free_and_end;
00561
00562 if(avctx->coded_width && avctx->coded_height)
00563 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
00564 else if(avctx->width && avctx->height)
00565 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
00566
00567 if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
00568 && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
00569 || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
00570 av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
00571 avcodec_set_dimensions(avctx, 0, 0);
00572 }
00573
00574
00575
00576 if (codec->decode)
00577 av_freep(&avctx->subtitle_header);
00578
00579 #define SANE_NB_CHANNELS 128U
00580 if (avctx->channels > SANE_NB_CHANNELS) {
00581 ret = AVERROR(EINVAL);
00582 goto free_and_end;
00583 }
00584
00585 avctx->codec = codec;
00586 if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
00587 avctx->codec_id == CODEC_ID_NONE) {
00588 avctx->codec_type = codec->type;
00589 avctx->codec_id = codec->id;
00590 }
00591 if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
00592 && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
00593 av_log(avctx, AV_LOG_ERROR, "codec type or id mismatches\n");
00594 ret = AVERROR(EINVAL);
00595 goto free_and_end;
00596 }
00597 avctx->frame_number = 0;
00598
00599 if (HAVE_THREADS && !avctx->thread_opaque) {
00600 ret = ff_thread_init(avctx);
00601 if (ret < 0) {
00602 goto free_and_end;
00603 }
00604 }
00605
00606 if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
00607 av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
00608 avctx->codec->max_lowres);
00609 ret = AVERROR(EINVAL);
00610 goto free_and_end;
00611 }
00612 if (avctx->codec->encode) {
00613 int i;
00614 if (avctx->codec->sample_fmts) {
00615 if (avctx->sample_fmt == AV_SAMPLE_FMT_NONE)
00616 avctx->sample_fmt = AV_SAMPLE_FMT_S16;
00617 for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++)
00618 if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
00619 break;
00620 if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
00621 av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
00622 ret = AVERROR(EINVAL);
00623 goto free_and_end;
00624 }
00625 }
00626 if (avctx->codec->supported_samplerates) {
00627 for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
00628 if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
00629 break;
00630 if (avctx->codec->supported_samplerates[i] == 0) {
00631 av_log(avctx, AV_LOG_ERROR, "Specified sample_rate is not supported\n");
00632 ret = AVERROR(EINVAL);
00633 goto free_and_end;
00634 }
00635 }
00636 if (avctx->codec->channel_layouts) {
00637 if (!avctx->channel_layout) {
00638 av_log(avctx, AV_LOG_WARNING, "channel_layout not specified\n");
00639 } else {
00640 for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
00641 if (avctx->channel_layout == avctx->codec->channel_layouts[i])
00642 break;
00643 if (avctx->codec->channel_layouts[i] == 0) {
00644 av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
00645 ret = AVERROR(EINVAL);
00646 goto free_and_end;
00647 }
00648 }
00649 }
00650 if (avctx->channel_layout && avctx->channels) {
00651 if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
00652 av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
00653 ret = AVERROR(EINVAL);
00654 goto free_and_end;
00655 }
00656 } else if (avctx->channel_layout) {
00657 avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
00658 }
00659 }
00660
00661 avctx->pts_correction_num_faulty_pts =
00662 avctx->pts_correction_num_faulty_dts = 0;
00663 avctx->pts_correction_last_pts =
00664 avctx->pts_correction_last_dts = INT64_MIN;
00665
00666 if(avctx->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
00667 ret = avctx->codec->init(avctx);
00668 if (ret < 0) {
00669 goto free_and_end;
00670 }
00671 }
00672
00673 ret=0;
00674 end:
00675 entangled_thread_counter--;
00676
00677
00678 if (ff_lockmgr_cb) {
00679 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
00680 }
00681 if (options) {
00682 av_dict_free(options);
00683 *options = tmp;
00684 }
00685
00686 return ret;
00687 free_and_end:
00688 av_dict_free(&tmp);
00689 av_freep(&avctx->priv_data);
00690 avctx->codec= NULL;
00691 goto end;
00692 }
00693
00694 int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00695 const short *samples)
00696 {
00697 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
00698 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
00699 return -1;
00700 }
00701 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
00702 int ret = avctx->codec->encode(avctx, buf, buf_size, samples);
00703 avctx->frame_number++;
00704 return ret;
00705 }else
00706 return 0;
00707 }
00708
00709 int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00710 const AVFrame *pict)
00711 {
00712 if(buf_size < FF_MIN_BUFFER_SIZE){
00713 av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
00714 return -1;
00715 }
00716 if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
00717 return -1;
00718 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
00719 int ret = avctx->codec->encode(avctx, buf, buf_size, pict);
00720 avctx->frame_number++;
00721 emms_c();
00722
00723 return ret;
00724 }else
00725 return 0;
00726 }
00727
00728 int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00729 const AVSubtitle *sub)
00730 {
00731 int ret;
00732 if(sub->start_display_time) {
00733 av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
00734 return -1;
00735 }
00736
00737 ret = avctx->codec->encode(avctx, buf, buf_size, sub);
00738 avctx->frame_number++;
00739 return ret;
00740 }
00741
00752 static int64_t guess_correct_pts(AVCodecContext *ctx,
00753 int64_t reordered_pts, int64_t dts)
00754 {
00755 int64_t pts = AV_NOPTS_VALUE;
00756
00757 if (dts != AV_NOPTS_VALUE) {
00758 ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
00759 ctx->pts_correction_last_dts = dts;
00760 }
00761 if (reordered_pts != AV_NOPTS_VALUE) {
00762 ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
00763 ctx->pts_correction_last_pts = reordered_pts;
00764 }
00765 if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
00766 && reordered_pts != AV_NOPTS_VALUE)
00767 pts = reordered_pts;
00768 else
00769 pts = dts;
00770
00771 return pts;
00772 }
00773
00774 #if FF_API_VIDEO_OLD
00775 int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
00776 int *got_picture_ptr,
00777 const uint8_t *buf, int buf_size)
00778 {
00779 AVPacket avpkt;
00780 av_init_packet(&avpkt);
00781 avpkt.data = buf;
00782 avpkt.size = buf_size;
00783
00784 avpkt.flags = AV_PKT_FLAG_KEY;
00785
00786 return avcodec_decode_video2(avctx, picture, got_picture_ptr, &avpkt);
00787 }
00788 #endif
00789
00790 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
00791 int *got_picture_ptr,
00792 AVPacket *avpkt)
00793 {
00794 int ret;
00795
00796 *got_picture_ptr= 0;
00797 if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
00798 return -1;
00799
00800 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
00801 avctx->pkt = avpkt;
00802 if (HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
00803 ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
00804 avpkt);
00805 else {
00806 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
00807 avpkt);
00808 picture->pkt_dts= avpkt->dts;
00809
00810 if(!avctx->has_b_frames){
00811 picture->pkt_pos= avpkt->pos;
00812 }
00813
00814 if (!picture->sample_aspect_ratio.num)
00815 picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
00816 if (!picture->width)
00817 picture->width = avctx->width;
00818 if (!picture->height)
00819 picture->height = avctx->height;
00820 if (picture->format == PIX_FMT_NONE)
00821 picture->format = avctx->pix_fmt;
00822 }
00823
00824 emms_c();
00825
00826
00827 if (*got_picture_ptr){
00828 avctx->frame_number++;
00829 picture->best_effort_timestamp = guess_correct_pts(avctx,
00830 picture->pkt_pts,
00831 picture->pkt_dts);
00832 }
00833 }else
00834 ret= 0;
00835
00836 return ret;
00837 }
00838
00839 #if FF_API_AUDIO_OLD
00840 int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
00841 int *frame_size_ptr,
00842 const uint8_t *buf, int buf_size)
00843 {
00844 AVPacket avpkt;
00845 av_init_packet(&avpkt);
00846 avpkt.data = buf;
00847 avpkt.size = buf_size;
00848
00849 return avcodec_decode_audio3(avctx, samples, frame_size_ptr, &avpkt);
00850 }
00851 #endif
00852
00853 int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
00854 int *frame_size_ptr,
00855 AVPacket *avpkt)
00856 {
00857 int ret;
00858
00859 avctx->pkt = avpkt;
00860
00861 if (!avpkt->data && avpkt->size) {
00862 av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
00863 return AVERROR(EINVAL);
00864 }
00865
00866 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size){
00867
00868 if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
00869 av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
00870 return -1;
00871 }
00872 if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
00873 *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
00874 av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
00875 return -1;
00876 }
00877
00878 ret = avctx->codec->decode(avctx, samples, frame_size_ptr, avpkt);
00879 avctx->frame_number++;
00880 }else{
00881 ret= 0;
00882 *frame_size_ptr=0;
00883 }
00884 return ret;
00885 }
00886
00887 #if FF_API_SUBTITLE_OLD
00888 int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
00889 int *got_sub_ptr,
00890 const uint8_t *buf, int buf_size)
00891 {
00892 AVPacket avpkt;
00893 av_init_packet(&avpkt);
00894 avpkt.data = buf;
00895 avpkt.size = buf_size;
00896
00897 return avcodec_decode_subtitle2(avctx, sub, got_sub_ptr, &avpkt);
00898 }
00899 #endif
00900
00901 int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
00902 int *got_sub_ptr,
00903 AVPacket *avpkt)
00904 {
00905 int ret;
00906
00907 avctx->pkt = avpkt;
00908 *got_sub_ptr = 0;
00909 avcodec_get_subtitle_defaults(sub);
00910 ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
00911 if (*got_sub_ptr)
00912 avctx->frame_number++;
00913 return ret;
00914 }
00915
00916 void avsubtitle_free(AVSubtitle *sub)
00917 {
00918 int i;
00919
00920 for (i = 0; i < sub->num_rects; i++)
00921 {
00922 av_freep(&sub->rects[i]->pict.data[0]);
00923 av_freep(&sub->rects[i]->pict.data[1]);
00924 av_freep(&sub->rects[i]->pict.data[2]);
00925 av_freep(&sub->rects[i]->pict.data[3]);
00926 av_freep(&sub->rects[i]->text);
00927 av_freep(&sub->rects[i]->ass);
00928 av_freep(&sub->rects[i]);
00929 }
00930
00931 av_freep(&sub->rects);
00932
00933 memset(sub, 0, sizeof(AVSubtitle));
00934 }
00935
00936 av_cold int avcodec_close(AVCodecContext *avctx)
00937 {
00938
00939 if (ff_lockmgr_cb) {
00940 if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
00941 return -1;
00942 }
00943
00944 entangled_thread_counter++;
00945 if(entangled_thread_counter != 1){
00946 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
00947 entangled_thread_counter--;
00948 return -1;
00949 }
00950
00951 if (HAVE_THREADS && avctx->thread_opaque)
00952 ff_thread_free(avctx);
00953 if (avctx->codec && avctx->codec->close)
00954 avctx->codec->close(avctx);
00955 avcodec_default_free_buffers(avctx);
00956 avctx->coded_frame = NULL;
00957 if (avctx->codec && avctx->codec->priv_class)
00958 av_opt_free(avctx->priv_data);
00959 av_opt_free(avctx);
00960 av_freep(&avctx->priv_data);
00961 if(avctx->codec && avctx->codec->encode)
00962 av_freep(&avctx->extradata);
00963 avctx->codec = NULL;
00964 avctx->active_thread_type = 0;
00965 entangled_thread_counter--;
00966
00967
00968 if (ff_lockmgr_cb) {
00969 (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
00970 }
00971 return 0;
00972 }
00973
00974 AVCodec *avcodec_find_encoder(enum CodecID id)
00975 {
00976 AVCodec *p, *experimental=NULL;
00977 p = first_avcodec;
00978 while (p) {
00979 if (p->encode != NULL && p->id == id) {
00980 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
00981 experimental = p;
00982 } else
00983 return p;
00984 }
00985 p = p->next;
00986 }
00987 return experimental;
00988 }
00989
00990 AVCodec *avcodec_find_encoder_by_name(const char *name)
00991 {
00992 AVCodec *p;
00993 if (!name)
00994 return NULL;
00995 p = first_avcodec;
00996 while (p) {
00997 if (p->encode != NULL && strcmp(name,p->name) == 0)
00998 return p;
00999 p = p->next;
01000 }
01001 return NULL;
01002 }
01003
01004 AVCodec *avcodec_find_decoder(enum CodecID id)
01005 {
01006 AVCodec *p, *experimental=NULL;
01007 p = first_avcodec;
01008 while (p) {
01009 if (p->decode != NULL && p->id == id) {
01010 if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
01011 experimental = p;
01012 } else
01013 return p;
01014 }
01015 p = p->next;
01016 }
01017 return experimental;
01018 }
01019
01020 AVCodec *avcodec_find_decoder_by_name(const char *name)
01021 {
01022 AVCodec *p;
01023 if (!name)
01024 return NULL;
01025 p = first_avcodec;
01026 while (p) {
01027 if (p->decode != NULL && strcmp(name,p->name) == 0)
01028 return p;
01029 p = p->next;
01030 }
01031 return NULL;
01032 }
01033
01034 static int get_bit_rate(AVCodecContext *ctx)
01035 {
01036 int bit_rate;
01037 int bits_per_sample;
01038
01039 switch(ctx->codec_type) {
01040 case AVMEDIA_TYPE_VIDEO:
01041 case AVMEDIA_TYPE_DATA:
01042 case AVMEDIA_TYPE_SUBTITLE:
01043 case AVMEDIA_TYPE_ATTACHMENT:
01044 bit_rate = ctx->bit_rate;
01045 break;
01046 case AVMEDIA_TYPE_AUDIO:
01047 bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
01048 bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
01049 break;
01050 default:
01051 bit_rate = 0;
01052 break;
01053 }
01054 return bit_rate;
01055 }
01056
01057 size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
01058 {
01059 int i, len, ret = 0;
01060
01061 for (i = 0; i < 4; i++) {
01062 len = snprintf(buf, buf_size,
01063 isprint(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
01064 buf += len;
01065 buf_size = buf_size > len ? buf_size - len : 0;
01066 ret += len;
01067 codec_tag>>=8;
01068 }
01069 return ret;
01070 }
01071
01072 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
01073 {
01074 const char *codec_name;
01075 const char *profile = NULL;
01076 AVCodec *p;
01077 char buf1[32];
01078 int bitrate;
01079 AVRational display_aspect_ratio;
01080
01081 if (encode)
01082 p = avcodec_find_encoder(enc->codec_id);
01083 else
01084 p = avcodec_find_decoder(enc->codec_id);
01085
01086 if (p) {
01087 codec_name = p->name;
01088 profile = av_get_profile_name(p, enc->profile);
01089 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
01090
01091
01092 codec_name = "mpeg2ts";
01093 } else if (enc->codec_name[0] != '\0') {
01094 codec_name = enc->codec_name;
01095 } else {
01096
01097 char tag_buf[32];
01098 av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
01099 snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
01100 codec_name = buf1;
01101 }
01102
01103 switch(enc->codec_type) {
01104 case AVMEDIA_TYPE_VIDEO:
01105 snprintf(buf, buf_size,
01106 "Video: %s%s",
01107 codec_name, enc->mb_decision ? " (hq)" : "");
01108 if (profile)
01109 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01110 " (%s)", profile);
01111 if (enc->pix_fmt != PIX_FMT_NONE) {
01112 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01113 ", %s",
01114 av_get_pix_fmt_name(enc->pix_fmt));
01115 }
01116 if (enc->width) {
01117 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01118 ", %dx%d",
01119 enc->width, enc->height);
01120 if (enc->sample_aspect_ratio.num) {
01121 av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
01122 enc->width*enc->sample_aspect_ratio.num,
01123 enc->height*enc->sample_aspect_ratio.den,
01124 1024*1024);
01125 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01126 " [PAR %d:%d DAR %d:%d]",
01127 enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
01128 display_aspect_ratio.num, display_aspect_ratio.den);
01129 }
01130 if(av_log_get_level() >= AV_LOG_DEBUG){
01131 int g= av_gcd(enc->time_base.num, enc->time_base.den);
01132 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01133 ", %d/%d",
01134 enc->time_base.num/g, enc->time_base.den/g);
01135 }
01136 }
01137 if (encode) {
01138 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01139 ", q=%d-%d", enc->qmin, enc->qmax);
01140 }
01141 break;
01142 case AVMEDIA_TYPE_AUDIO:
01143 snprintf(buf, buf_size,
01144 "Audio: %s",
01145 codec_name);
01146 if (profile)
01147 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01148 " (%s)", profile);
01149 if (enc->sample_rate) {
01150 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01151 ", %d Hz", enc->sample_rate);
01152 }
01153 av_strlcat(buf, ", ", buf_size);
01154 av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
01155 if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
01156 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01157 ", %s", av_get_sample_fmt_name(enc->sample_fmt));
01158 }
01159 break;
01160 case AVMEDIA_TYPE_DATA:
01161 snprintf(buf, buf_size, "Data: %s", codec_name);
01162 break;
01163 case AVMEDIA_TYPE_SUBTITLE:
01164 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
01165 break;
01166 case AVMEDIA_TYPE_ATTACHMENT:
01167 snprintf(buf, buf_size, "Attachment: %s", codec_name);
01168 break;
01169 default:
01170 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
01171 return;
01172 }
01173 if (encode) {
01174 if (enc->flags & CODEC_FLAG_PASS1)
01175 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01176 ", pass 1");
01177 if (enc->flags & CODEC_FLAG_PASS2)
01178 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01179 ", pass 2");
01180 }
01181 bitrate = get_bit_rate(enc);
01182 if (bitrate != 0) {
01183 snprintf(buf + strlen(buf), buf_size - strlen(buf),
01184 ", %d kb/s", bitrate / 1000);
01185 }
01186 }
01187
01188 const char *av_get_profile_name(const AVCodec *codec, int profile)
01189 {
01190 const AVProfile *p;
01191 if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
01192 return NULL;
01193
01194 for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
01195 if (p->profile == profile)
01196 return p->name;
01197
01198 return NULL;
01199 }
01200
01201 unsigned avcodec_version( void )
01202 {
01203 return LIBAVCODEC_VERSION_INT;
01204 }
01205
01206 const char *avcodec_configuration(void)
01207 {
01208 return FFMPEG_CONFIGURATION;
01209 }
01210
01211 const char *avcodec_license(void)
01212 {
01213 #define LICENSE_PREFIX "libavcodec license: "
01214 return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
01215 }
01216
01217 void avcodec_init(void)
01218 {
01219 static int initialized = 0;
01220
01221 if (initialized != 0)
01222 return;
01223 initialized = 1;
01224
01225 dsputil_static_init();
01226 }
01227
01228 void avcodec_flush_buffers(AVCodecContext *avctx)
01229 {
01230 if(HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
01231 ff_thread_flush(avctx);
01232 else if(avctx->codec->flush)
01233 avctx->codec->flush(avctx);
01234 }
01235
01236 void avcodec_default_free_buffers(AVCodecContext *s){
01237 int i, j;
01238
01239 if(s->internal_buffer==NULL) return;
01240
01241 if (s->internal_buffer_count)
01242 av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n", s->internal_buffer_count);
01243 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
01244 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
01245 for(j=0; j<4; j++){
01246 av_freep(&buf->base[j]);
01247 buf->data[j]= NULL;
01248 }
01249 }
01250 av_freep(&s->internal_buffer);
01251
01252 s->internal_buffer_count=0;
01253 }
01254
01255 #if FF_API_OLD_FF_PICT_TYPES
01256 char av_get_pict_type_char(int pict_type){
01257 return av_get_picture_type_char(pict_type);
01258 }
01259 #endif
01260
01261 int av_get_bits_per_sample(enum CodecID codec_id){
01262 switch(codec_id){
01263 case CODEC_ID_ADPCM_SBPRO_2:
01264 return 2;
01265 case CODEC_ID_ADPCM_SBPRO_3:
01266 return 3;
01267 case CODEC_ID_ADPCM_SBPRO_4:
01268 case CODEC_ID_ADPCM_CT:
01269 case CODEC_ID_ADPCM_IMA_WAV:
01270 case CODEC_ID_ADPCM_MS:
01271 case CODEC_ID_ADPCM_YAMAHA:
01272 return 4;
01273 case CODEC_ID_ADPCM_G722:
01274 case CODEC_ID_PCM_ALAW:
01275 case CODEC_ID_PCM_MULAW:
01276 case CODEC_ID_PCM_S8:
01277 case CODEC_ID_PCM_U8:
01278 case CODEC_ID_PCM_ZORK:
01279 return 8;
01280 case CODEC_ID_PCM_S16BE:
01281 case CODEC_ID_PCM_S16LE:
01282 case CODEC_ID_PCM_S16LE_PLANAR:
01283 case CODEC_ID_PCM_U16BE:
01284 case CODEC_ID_PCM_U16LE:
01285 return 16;
01286 case CODEC_ID_PCM_S24DAUD:
01287 case CODEC_ID_PCM_S24BE:
01288 case CODEC_ID_PCM_S24LE:
01289 case CODEC_ID_PCM_U24BE:
01290 case CODEC_ID_PCM_U24LE:
01291 return 24;
01292 case CODEC_ID_PCM_S32BE:
01293 case CODEC_ID_PCM_S32LE:
01294 case CODEC_ID_PCM_U32BE:
01295 case CODEC_ID_PCM_U32LE:
01296 case CODEC_ID_PCM_F32BE:
01297 case CODEC_ID_PCM_F32LE:
01298 return 32;
01299 case CODEC_ID_PCM_F64BE:
01300 case CODEC_ID_PCM_F64LE:
01301 return 64;
01302 default:
01303 return 0;
01304 }
01305 }
01306
01307 #if FF_API_OLD_SAMPLE_FMT
01308 int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt) {
01309 return av_get_bytes_per_sample(sample_fmt) << 3;
01310 }
01311 #endif
01312
01313 #if !HAVE_THREADS
01314 int ff_thread_init(AVCodecContext *s){
01315 return -1;
01316 }
01317 #endif
01318
01319 unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
01320 {
01321 unsigned int n = 0;
01322
01323 while(v >= 0xff) {
01324 *s++ = 0xff;
01325 v -= 0xff;
01326 n++;
01327 }
01328 *s = v;
01329 n++;
01330 return n;
01331 }
01332
01333 #if LIBAVCODEC_VERSION_MAJOR < 53
01334 #include "libavutil/parseutils.h"
01335
01336 int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
01337 {
01338 return av_parse_video_size(width_ptr, height_ptr, str);
01339 }
01340
01341 int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
01342 {
01343 return av_parse_video_rate(frame_rate, arg);
01344 }
01345 #endif
01346
01347 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b){
01348 int i;
01349 for(i=0; i<size && !(tab[i][0]==a && tab[i][1]==b); i++);
01350 return i;
01351 }
01352
01353 void av_log_missing_feature(void *avc, const char *feature, int want_sample)
01354 {
01355 av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
01356 "version to the newest one from Git. If the problem still "
01357 "occurs, it means that your file has a feature which has not "
01358 "been implemented.\n", feature);
01359 if(want_sample)
01360 av_log_ask_for_sample(avc, NULL);
01361 }
01362
01363 void av_log_ask_for_sample(void *avc, const char *msg, ...)
01364 {
01365 va_list argument_list;
01366
01367 va_start(argument_list, msg);
01368
01369 if (msg)
01370 av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
01371 av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
01372 "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
01373 "and contact the ffmpeg-devel mailing list.\n");
01374
01375 va_end(argument_list);
01376 }
01377
01378 static AVHWAccel *first_hwaccel = NULL;
01379
01380 void av_register_hwaccel(AVHWAccel *hwaccel)
01381 {
01382 AVHWAccel **p = &first_hwaccel;
01383 while (*p)
01384 p = &(*p)->next;
01385 *p = hwaccel;
01386 hwaccel->next = NULL;
01387 }
01388
01389 AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
01390 {
01391 return hwaccel ? hwaccel->next : first_hwaccel;
01392 }
01393
01394 AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
01395 {
01396 AVHWAccel *hwaccel=NULL;
01397
01398 while((hwaccel= av_hwaccel_next(hwaccel))){
01399 if ( hwaccel->id == codec_id
01400 && hwaccel->pix_fmt == pix_fmt)
01401 return hwaccel;
01402 }
01403 return NULL;
01404 }
01405
01406 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
01407 {
01408 if (ff_lockmgr_cb) {
01409 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
01410 return -1;
01411 }
01412
01413 ff_lockmgr_cb = cb;
01414
01415 if (ff_lockmgr_cb) {
01416 if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
01417 return -1;
01418 }
01419 return 0;
01420 }
01421
01422 unsigned int ff_toupper4(unsigned int x)
01423 {
01424 return toupper( x &0xFF)
01425 + (toupper((x>>8 )&0xFF)<<8 )
01426 + (toupper((x>>16)&0xFF)<<16)
01427 + (toupper((x>>24)&0xFF)<<24);
01428 }
01429
01430 #if !HAVE_PTHREADS
01431
01432 int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
01433 {
01434 f->owner = avctx;
01435 return avctx->get_buffer(avctx, f);
01436 }
01437
01438 void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
01439 {
01440 f->owner->release_buffer(f->owner, f);
01441 }
01442
01443 void ff_thread_finish_setup(AVCodecContext *avctx)
01444 {
01445 }
01446
01447 void ff_thread_report_progress(AVFrame *f, int progress, int field)
01448 {
01449 }
01450
01451 void ff_thread_await_progress(AVFrame *f, int progress, int field)
01452 {
01453 }
01454
01455 #endif
01456
01457 #if FF_API_THREAD_INIT
01458 int avcodec_thread_init(AVCodecContext *s, int thread_count)
01459 {
01460 s->thread_count = thread_count;
01461 return ff_thread_init(s);
01462 }
01463
01464 void avcodec_thread_free(AVCodecContext *s)
01465 {
01466 #if HAVE_THREADS
01467 ff_thread_free(s);
01468 #endif
01469 }
01470
01471 #endif