X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Futils.c;h=59d41ccbb64db10eafb3f3752bf9e34867975716;hb=e1182fac1afba92a4975917823a5f644bee7e6e8;hp=b3a578110bbf796f9625f9ddd6005df5e80e31bd;hpb=0525722ca03aa6c3c8d828ad278e1870731bfafc;p=ffmpeg diff --git a/libavcodec/utils.c b/libavcodec/utils.c index b3a578110bb..59d41ccbb64 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -26,7 +26,6 @@ */ #include "config.h" -#include "libavutil/atomic.h" #include "libavutil/attributes.h" #include "libavutil/avassert.h" #include "libavutil/avstring.h" @@ -45,8 +44,8 @@ #include "libavutil/thread.h" #include "avcodec.h" #include "decode.h" +#include "hwaccel.h" #include "libavutil/opt.h" -#include "me_cmp.h" #include "mpegvideo.h" #include "thread.h" #include "frame_thread_encoder.h" @@ -56,6 +55,7 @@ #include "version.h" #include #include +#include #include #include #if CONFIG_ICONV @@ -65,58 +65,7 @@ #include "libavutil/ffversion.h" const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION; -#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS -static int default_lockmgr_cb(void **arg, enum AVLockOp op) -{ - void * volatile * mutex = arg; - int err; - - switch (op) { - case AV_LOCK_CREATE: - return 0; - case AV_LOCK_OBTAIN: - if (!*mutex) { - pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t)); - if (!tmp) - return AVERROR(ENOMEM); - if ((err = pthread_mutex_init(tmp, NULL))) { - av_free(tmp); - return AVERROR(err); - } - if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) { - pthread_mutex_destroy(tmp); - av_free(tmp); - } - } - - if ((err = pthread_mutex_lock(*mutex))) - return AVERROR(err); - - return 0; - case AV_LOCK_RELEASE: - if ((err = pthread_mutex_unlock(*mutex))) - return AVERROR(err); - - return 0; - case AV_LOCK_DESTROY: - if (*mutex) - pthread_mutex_destroy(*mutex); - av_free(*mutex); - avpriv_atomic_ptr_cas(mutex, *mutex, NULL); - return 0; - } - return 1; -} -static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb; -#else -static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL; -#endif - - -volatile int ff_avcodec_locked; -static int volatile entangled_thread_counter = 0; -static void *codec_mutex; -static void *avformat_mutex; +static AVMutex codec_mutex = AV_MUTEX_INITIALIZER; void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) { @@ -142,30 +91,6 @@ void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE); } -/* encoder management */ -static AVCodec *first_avcodec = NULL; -static AVCodec **last_avcodec = &first_avcodec; - -AVCodec *av_codec_next(const AVCodec *c) -{ - if (c) - return c->next; - else - return first_avcodec; -} - -static av_cold void avcodec_init(void) -{ - static int initialized = 0; - - if (initialized != 0) - return; - initialized = 1; - - if (CONFIG_ME_CMP) - ff_me_cmp_init_static(); -} - int av_codec_is_encoder(const AVCodec *codec) { return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame); @@ -176,21 +101,6 @@ int av_codec_is_decoder(const AVCodec *codec) return codec && (codec->decode || codec->receive_frame); } -av_cold void avcodec_register(AVCodec *codec) -{ - AVCodec **p; - avcodec_init(); - p = last_avcodec; - codec->next = NULL; - - while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec)) - p = &(*p)->next; - last_avcodec = &codec->next; - - if (codec->init_static_data) - codec->init_static_data(codec); -} - int ff_set_dimensions(AVCodecContext *s, int width, int height) { int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s); @@ -402,7 +312,10 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, *width = FFALIGN(*width, w_align); *height = FFALIGN(*height, h_align); - if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) { + if (s->codec_id == AV_CODEC_ID_H264 || s->lowres || + s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 || + s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A + ) { // some of the optimized chroma MC reads one line too much // which is also done in mpeg decoders with lowres > 0 *height += 2; @@ -552,6 +465,7 @@ enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, return AV_PIX_FMT_NONE; } +#if FF_API_CODEC_GET_SET MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) MAKE_ACCESSORS(AVCodecContext, codec, int, lowres) @@ -567,6 +481,7 @@ int av_codec_get_max_lowres(const AVCodec *codec) { return codec->max_lowres; } +#endif int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){ return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM); @@ -595,6 +510,19 @@ static int64_t get_bit_rate(AVCodecContext *ctx) return bit_rate; } + +static void ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec) +{ + if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) + ff_mutex_lock(&codec_mutex); +} + +static void ff_unlock_avcodec(const AVCodec *codec) +{ + if (!(codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE) && codec->init) + ff_mutex_unlock(&codec_mutex); +} + int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) { int ret = 0; @@ -634,11 +562,9 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code if (options) av_dict_copy(&tmp, *options, 0); - ret = ff_lock_avcodec(avctx, codec); - if (ret < 0) - return ret; + ff_lock_avcodec(avctx, codec); - avctx->internal = av_mallocz(sizeof(AVCodecInternal)); + avctx->internal = av_mallocz(sizeof(*avctx->internal)); if (!avctx->internal) { ret = AVERROR(ENOMEM); goto end; @@ -1129,7 +1055,7 @@ void avsubtitle_free(AVSubtitle *sub) av_freep(&sub->rects); - memset(sub, 0, sizeof(AVSubtitle)); + memset(sub, 0, sizeof(*sub)); } av_cold int avcodec_close(AVCodecContext *avctx) @@ -1198,71 +1124,6 @@ FF_ENABLE_DEPRECATION_WARNINGS return 0; } -static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) -{ - switch(id){ - //This is for future deprecatec codec ids, its empty since - //last major bump but will fill up again over time, please don't remove it - default : return id; - } -} - -static AVCodec *find_encdec(enum AVCodecID id, int encoder) -{ - AVCodec *p, *experimental = NULL; - p = first_avcodec; - id= remap_deprecated_codec_id(id); - while (p) { - if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) && - p->id == id) { - if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) { - experimental = p; - } else - return p; - } - p = p->next; - } - return experimental; -} - -AVCodec *avcodec_find_encoder(enum AVCodecID id) -{ - return find_encdec(id, 1); -} - -AVCodec *avcodec_find_encoder_by_name(const char *name) -{ - AVCodec *p; - if (!name) - return NULL; - p = first_avcodec; - while (p) { - if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - -AVCodec *avcodec_find_decoder(enum AVCodecID id) -{ - return find_encdec(id, 0); -} - -AVCodec *avcodec_find_decoder_by_name(const char *name) -{ - AVCodec *p; - if (!name) - return NULL; - p = first_avcodec; - while (p) { - if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - const char *avcodec_get_name(enum AVCodecID id) { const AVCodecDescriptor *cd; @@ -1883,114 +1744,34 @@ int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) return i; } -static AVHWAccel *first_hwaccel = NULL; -static AVHWAccel **last_hwaccel = &first_hwaccel; - -void av_register_hwaccel(AVHWAccel *hwaccel) +const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index) { - AVHWAccel **p = last_hwaccel; - hwaccel->next = NULL; - while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel)) - p = &(*p)->next; - last_hwaccel = &hwaccel->next; + int i; + if (!codec->hw_configs || index < 0) + return NULL; + for (i = 0; i <= index; i++) + if (!codec->hw_configs[i]) + return NULL; + return &codec->hw_configs[index]->public; } +#if FF_API_USER_VISIBLE_AVHWACCEL AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel) { - return hwaccel ? hwaccel->next : first_hwaccel; -} - -int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) -{ - if (lockmgr_cb) { - // There is no good way to rollback a failure to destroy the - // mutex, so we ignore failures. - lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY); - lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY); - lockmgr_cb = NULL; - codec_mutex = NULL; - avformat_mutex = NULL; - } - - if (cb) { - void *new_codec_mutex = NULL; - void *new_avformat_mutex = NULL; - int err; - if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) { - return err > 0 ? AVERROR_UNKNOWN : err; - } - if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) { - // Ignore failures to destroy the newly created mutex. - cb(&new_codec_mutex, AV_LOCK_DESTROY); - return err > 0 ? AVERROR_UNKNOWN : err; - } - lockmgr_cb = cb; - codec_mutex = new_codec_mutex; - avformat_mutex = new_avformat_mutex; - } - - return 0; -} - -int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec) -{ - if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) - return 0; - - if (lockmgr_cb) { - if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) - return -1; - } - - if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) { - av_log(log_ctx, AV_LOG_ERROR, - "Insufficient thread locking. At least %d threads are " - "calling avcodec_open2() at the same time right now.\n", - entangled_thread_counter); - if (!lockmgr_cb) - av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n"); - ff_avcodec_locked = 1; - ff_unlock_avcodec(codec); - return AVERROR(EINVAL); - } - av_assert0(!ff_avcodec_locked); - ff_avcodec_locked = 1; - return 0; -} - -int ff_unlock_avcodec(const AVCodec *codec) -{ - if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) - return 0; - - av_assert0(ff_avcodec_locked); - ff_avcodec_locked = 0; - avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1); - if (lockmgr_cb) { - if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE)) - return -1; - } - - return 0; + return NULL; } -int avpriv_lock_avformat(void) +void av_register_hwaccel(AVHWAccel *hwaccel) { - if (lockmgr_cb) { - if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) - return -1; - } - return 0; } +#endif -int avpriv_unlock_avformat(void) +#if FF_API_LOCKMGR +int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) { - if (lockmgr_cb) { - if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) - return -1; - } return 0; } +#endif unsigned int avpriv_toupper4(unsigned int x) {