mirror of https://git.ffmpeg.org/ffmpeg.git
2417 lines
79 KiB
C
2417 lines
79 KiB
C
/*
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* utils for libavcodec
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* Copyright (c) 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* utils.
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*/
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#include "config.h"
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#include "libavutil/atomic.h"
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/bprint.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/crc.h"
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#include "libavutil/frame.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/internal.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/mem_internal.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/dict.h"
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#include "libavutil/thread.h"
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#include "avcodec.h"
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#include "decode.h"
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#include "libavutil/opt.h"
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#include "me_cmp.h"
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#include "mpegvideo.h"
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#include "thread.h"
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#include "frame_thread_encoder.h"
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#include "internal.h"
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#include "raw.h"
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#include "bytestream.h"
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#include "version.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <limits.h>
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#include <float.h>
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#if CONFIG_ICONV
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# include <iconv.h>
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#endif
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#include "libavutil/ffversion.h"
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const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
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#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
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static int default_lockmgr_cb(void **arg, enum AVLockOp op)
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{
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void * volatile * mutex = arg;
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int err;
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switch (op) {
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case AV_LOCK_CREATE:
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return 0;
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case AV_LOCK_OBTAIN:
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if (!*mutex) {
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pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t));
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if (!tmp)
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return AVERROR(ENOMEM);
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if ((err = pthread_mutex_init(tmp, NULL))) {
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av_free(tmp);
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return AVERROR(err);
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}
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if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) {
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pthread_mutex_destroy(tmp);
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av_free(tmp);
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}
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}
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if ((err = pthread_mutex_lock(*mutex)))
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return AVERROR(err);
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return 0;
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case AV_LOCK_RELEASE:
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if ((err = pthread_mutex_unlock(*mutex)))
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return AVERROR(err);
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return 0;
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case AV_LOCK_DESTROY:
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if (*mutex)
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pthread_mutex_destroy(*mutex);
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av_free(*mutex);
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avpriv_atomic_ptr_cas(mutex, *mutex, NULL);
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return 0;
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}
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return 1;
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}
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static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb;
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#else
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static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL;
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#endif
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volatile int ff_avcodec_locked;
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static int volatile entangled_thread_counter = 0;
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static void *codec_mutex;
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static void *avformat_mutex;
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void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
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{
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uint8_t **p = ptr;
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if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
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av_freep(p);
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*size = 0;
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return;
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}
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if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
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}
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void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
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{
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uint8_t **p = ptr;
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if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
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av_freep(p);
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*size = 0;
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return;
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}
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if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
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}
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/* encoder management */
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static AVCodec *first_avcodec = NULL;
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static AVCodec **last_avcodec = &first_avcodec;
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AVCodec *av_codec_next(const AVCodec *c)
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{
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if (c)
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return c->next;
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else
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return first_avcodec;
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}
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static av_cold void avcodec_init(void)
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{
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static int initialized = 0;
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if (initialized != 0)
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return;
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initialized = 1;
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if (CONFIG_ME_CMP)
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ff_me_cmp_init_static();
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}
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int av_codec_is_encoder(const AVCodec *codec)
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{
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return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
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}
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int av_codec_is_decoder(const AVCodec *codec)
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{
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return codec && (codec->decode || codec->receive_frame);
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}
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av_cold void avcodec_register(AVCodec *codec)
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{
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AVCodec **p;
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avcodec_init();
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p = last_avcodec;
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codec->next = NULL;
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while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec))
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p = &(*p)->next;
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last_avcodec = &codec->next;
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if (codec->init_static_data)
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codec->init_static_data(codec);
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}
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int ff_set_dimensions(AVCodecContext *s, int width, int height)
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{
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int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
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if (ret < 0)
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width = height = 0;
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s->coded_width = width;
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s->coded_height = height;
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s->width = AV_CEIL_RSHIFT(width, s->lowres);
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s->height = AV_CEIL_RSHIFT(height, s->lowres);
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return ret;
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}
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int ff_set_sar(AVCodecContext *avctx, AVRational sar)
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{
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int ret = av_image_check_sar(avctx->width, avctx->height, sar);
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if (ret < 0) {
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av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
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sar.num, sar.den);
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avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
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return ret;
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} else {
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avctx->sample_aspect_ratio = sar;
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}
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return 0;
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}
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int ff_side_data_update_matrix_encoding(AVFrame *frame,
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enum AVMatrixEncoding matrix_encoding)
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{
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AVFrameSideData *side_data;
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enum AVMatrixEncoding *data;
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side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
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if (!side_data)
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side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
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sizeof(enum AVMatrixEncoding));
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if (!side_data)
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return AVERROR(ENOMEM);
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data = (enum AVMatrixEncoding*)side_data->data;
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*data = matrix_encoding;
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return 0;
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}
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void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
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int linesize_align[AV_NUM_DATA_POINTERS])
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{
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int i;
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int w_align = 1;
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int h_align = 1;
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AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
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if (desc) {
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w_align = 1 << desc->log2_chroma_w;
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h_align = 1 << desc->log2_chroma_h;
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}
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switch (s->pix_fmt) {
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case AV_PIX_FMT_YUV420P:
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case AV_PIX_FMT_YUYV422:
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case AV_PIX_FMT_YVYU422:
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case AV_PIX_FMT_UYVY422:
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case AV_PIX_FMT_YUV422P:
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case AV_PIX_FMT_YUV440P:
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case AV_PIX_FMT_YUV444P:
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case AV_PIX_FMT_GBRP:
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case AV_PIX_FMT_GBRAP:
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case AV_PIX_FMT_GRAY8:
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case AV_PIX_FMT_GRAY16BE:
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case AV_PIX_FMT_GRAY16LE:
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case AV_PIX_FMT_YUVJ420P:
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case AV_PIX_FMT_YUVJ422P:
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case AV_PIX_FMT_YUVJ440P:
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case AV_PIX_FMT_YUVJ444P:
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case AV_PIX_FMT_YUVA420P:
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case AV_PIX_FMT_YUVA422P:
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case AV_PIX_FMT_YUVA444P:
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case AV_PIX_FMT_YUV420P9LE:
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case AV_PIX_FMT_YUV420P9BE:
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case AV_PIX_FMT_YUV420P10LE:
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case AV_PIX_FMT_YUV420P10BE:
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case AV_PIX_FMT_YUV420P12LE:
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case AV_PIX_FMT_YUV420P12BE:
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case AV_PIX_FMT_YUV420P14LE:
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case AV_PIX_FMT_YUV420P14BE:
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case AV_PIX_FMT_YUV420P16LE:
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case AV_PIX_FMT_YUV420P16BE:
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case AV_PIX_FMT_YUVA420P9LE:
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case AV_PIX_FMT_YUVA420P9BE:
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case AV_PIX_FMT_YUVA420P10LE:
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case AV_PIX_FMT_YUVA420P10BE:
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case AV_PIX_FMT_YUVA420P16LE:
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case AV_PIX_FMT_YUVA420P16BE:
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case AV_PIX_FMT_YUV422P9LE:
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case AV_PIX_FMT_YUV422P9BE:
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case AV_PIX_FMT_YUV422P10LE:
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case AV_PIX_FMT_YUV422P10BE:
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case AV_PIX_FMT_YUV422P12LE:
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case AV_PIX_FMT_YUV422P12BE:
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case AV_PIX_FMT_YUV422P14LE:
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case AV_PIX_FMT_YUV422P14BE:
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case AV_PIX_FMT_YUV422P16LE:
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case AV_PIX_FMT_YUV422P16BE:
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case AV_PIX_FMT_YUVA422P9LE:
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case AV_PIX_FMT_YUVA422P9BE:
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case AV_PIX_FMT_YUVA422P10LE:
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case AV_PIX_FMT_YUVA422P10BE:
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case AV_PIX_FMT_YUVA422P16LE:
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case AV_PIX_FMT_YUVA422P16BE:
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case AV_PIX_FMT_YUV440P10LE:
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case AV_PIX_FMT_YUV440P10BE:
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case AV_PIX_FMT_YUV440P12LE:
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case AV_PIX_FMT_YUV440P12BE:
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case AV_PIX_FMT_YUV444P9LE:
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case AV_PIX_FMT_YUV444P9BE:
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case AV_PIX_FMT_YUV444P10LE:
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case AV_PIX_FMT_YUV444P10BE:
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case AV_PIX_FMT_YUV444P12LE:
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case AV_PIX_FMT_YUV444P12BE:
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case AV_PIX_FMT_YUV444P14LE:
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case AV_PIX_FMT_YUV444P14BE:
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case AV_PIX_FMT_YUV444P16LE:
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case AV_PIX_FMT_YUV444P16BE:
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case AV_PIX_FMT_YUVA444P9LE:
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case AV_PIX_FMT_YUVA444P9BE:
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case AV_PIX_FMT_YUVA444P10LE:
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case AV_PIX_FMT_YUVA444P10BE:
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case AV_PIX_FMT_YUVA444P16LE:
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case AV_PIX_FMT_YUVA444P16BE:
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case AV_PIX_FMT_GBRP9LE:
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case AV_PIX_FMT_GBRP9BE:
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case AV_PIX_FMT_GBRP10LE:
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case AV_PIX_FMT_GBRP10BE:
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case AV_PIX_FMT_GBRP12LE:
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case AV_PIX_FMT_GBRP12BE:
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case AV_PIX_FMT_GBRP14LE:
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case AV_PIX_FMT_GBRP14BE:
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case AV_PIX_FMT_GBRP16LE:
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case AV_PIX_FMT_GBRP16BE:
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case AV_PIX_FMT_GBRAP12LE:
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case AV_PIX_FMT_GBRAP12BE:
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case AV_PIX_FMT_GBRAP16LE:
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case AV_PIX_FMT_GBRAP16BE:
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w_align = 16; //FIXME assume 16 pixel per macroblock
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h_align = 16 * 2; // interlaced needs 2 macroblocks height
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break;
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case AV_PIX_FMT_YUV411P:
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case AV_PIX_FMT_YUVJ411P:
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case AV_PIX_FMT_UYYVYY411:
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w_align = 32;
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h_align = 16 * 2;
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break;
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case AV_PIX_FMT_YUV410P:
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if (s->codec_id == AV_CODEC_ID_SVQ1) {
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w_align = 64;
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h_align = 64;
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}
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break;
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case AV_PIX_FMT_RGB555:
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if (s->codec_id == AV_CODEC_ID_RPZA) {
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w_align = 4;
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h_align = 4;
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}
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if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
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w_align = 8;
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h_align = 8;
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}
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break;
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case AV_PIX_FMT_PAL8:
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case AV_PIX_FMT_BGR8:
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case AV_PIX_FMT_RGB8:
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if (s->codec_id == AV_CODEC_ID_SMC ||
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s->codec_id == AV_CODEC_ID_CINEPAK) {
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w_align = 4;
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h_align = 4;
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}
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if (s->codec_id == AV_CODEC_ID_JV ||
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s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
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w_align = 8;
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h_align = 8;
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}
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break;
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case AV_PIX_FMT_BGR24:
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if ((s->codec_id == AV_CODEC_ID_MSZH) ||
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(s->codec_id == AV_CODEC_ID_ZLIB)) {
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w_align = 4;
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h_align = 4;
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}
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break;
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case AV_PIX_FMT_RGB24:
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if (s->codec_id == AV_CODEC_ID_CINEPAK) {
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w_align = 4;
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h_align = 4;
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}
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break;
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default:
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break;
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}
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if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
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w_align = FFMAX(w_align, 8);
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}
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*width = FFALIGN(*width, w_align);
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*height = FFALIGN(*height, h_align);
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if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) {
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// some of the optimized chroma MC reads one line too much
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// which is also done in mpeg decoders with lowres > 0
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*height += 2;
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// H.264 uses edge emulation for out of frame motion vectors, for this
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// it requires a temporary area large enough to hold a 21x21 block,
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// increasing witdth ensure that the temporary area is large enough,
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// the next rounded up width is 32
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*width = FFMAX(*width, 32);
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}
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for (i = 0; i < 4; i++)
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linesize_align[i] = STRIDE_ALIGN;
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}
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void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
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int chroma_shift = desc->log2_chroma_w;
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int linesize_align[AV_NUM_DATA_POINTERS];
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int align;
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avcodec_align_dimensions2(s, width, height, linesize_align);
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align = FFMAX(linesize_align[0], linesize_align[3]);
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linesize_align[1] <<= chroma_shift;
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linesize_align[2] <<= chroma_shift;
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align = FFMAX3(align, linesize_align[1], linesize_align[2]);
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*width = FFALIGN(*width, align);
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}
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int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
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{
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if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
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return AVERROR(EINVAL);
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pos--;
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*xpos = (pos&1) * 128;
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*ypos = ((pos>>1)^(pos<4)) * 128;
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return 0;
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}
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|
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enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
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{
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int pos, xout, yout;
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for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
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if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
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return pos;
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}
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return AVCHROMA_LOC_UNSPECIFIED;
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}
|
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|
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int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
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enum AVSampleFormat sample_fmt, const uint8_t *buf,
|
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int buf_size, int align)
|
|
{
|
|
int ch, planar, needed_size, ret = 0;
|
|
|
|
needed_size = av_samples_get_buffer_size(NULL, nb_channels,
|
|
frame->nb_samples, sample_fmt,
|
|
align);
|
|
if (buf_size < needed_size)
|
|
return AVERROR(EINVAL);
|
|
|
|
planar = av_sample_fmt_is_planar(sample_fmt);
|
|
if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
|
|
if (!(frame->extended_data = av_mallocz_array(nb_channels,
|
|
sizeof(*frame->extended_data))))
|
|
return AVERROR(ENOMEM);
|
|
} else {
|
|
frame->extended_data = frame->data;
|
|
}
|
|
|
|
if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
|
|
(uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
|
|
sample_fmt, align)) < 0) {
|
|
if (frame->extended_data != frame->data)
|
|
av_freep(&frame->extended_data);
|
|
return ret;
|
|
}
|
|
if (frame->extended_data != frame->data) {
|
|
for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
|
|
frame->data[ch] = frame->extended_data[ch];
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void ff_color_frame(AVFrame *frame, const int c[4])
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
|
|
int p, y, x;
|
|
|
|
av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
|
|
|
|
for (p = 0; p<desc->nb_components; p++) {
|
|
uint8_t *dst = frame->data[p];
|
|
int is_chroma = p == 1 || p == 2;
|
|
int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
|
|
int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
|
|
for (y = 0; y < height; y++) {
|
|
if (desc->comp[0].depth >= 9) {
|
|
for (x = 0; x<bytes; x++)
|
|
((uint16_t*)dst)[x] = c[p];
|
|
}else
|
|
memset(dst, c[p], bytes);
|
|
dst += frame->linesize[p];
|
|
}
|
|
}
|
|
}
|
|
|
|
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
int r = func(c, (char *)arg + i * size);
|
|
if (ret)
|
|
ret[i] = r;
|
|
}
|
|
emms_c();
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
int r = func(c, arg, i, 0);
|
|
if (ret)
|
|
ret[i] = r;
|
|
}
|
|
emms_c();
|
|
return 0;
|
|
}
|
|
|
|
enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
|
|
unsigned int fourcc)
|
|
{
|
|
while (tags->pix_fmt >= 0) {
|
|
if (tags->fourcc == fourcc)
|
|
return tags->pix_fmt;
|
|
tags++;
|
|
}
|
|
return AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
|
|
MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
|
|
MAKE_ACCESSORS(AVCodecContext, codec, int, lowres)
|
|
MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll)
|
|
MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix)
|
|
|
|
unsigned av_codec_get_codec_properties(const AVCodecContext *codec)
|
|
{
|
|
return codec->properties;
|
|
}
|
|
|
|
int av_codec_get_max_lowres(const AVCodec *codec)
|
|
{
|
|
return codec->max_lowres;
|
|
}
|
|
|
|
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
|
|
return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
|
|
}
|
|
|
|
static int64_t get_bit_rate(AVCodecContext *ctx)
|
|
{
|
|
int64_t bit_rate;
|
|
int bits_per_sample;
|
|
|
|
switch (ctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
case AVMEDIA_TYPE_DATA:
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
case AVMEDIA_TYPE_ATTACHMENT:
|
|
bit_rate = ctx->bit_rate;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
|
|
bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
|
|
break;
|
|
default:
|
|
bit_rate = 0;
|
|
break;
|
|
}
|
|
return bit_rate;
|
|
}
|
|
|
|
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
|
|
ff_unlock_avcodec(codec);
|
|
|
|
ret = avcodec_open2(avctx, codec, options);
|
|
|
|
ff_lock_avcodec(avctx, codec);
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
AVDictionary *tmp = NULL;
|
|
const AVPixFmtDescriptor *pixdesc;
|
|
|
|
if (avcodec_is_open(avctx))
|
|
return 0;
|
|
|
|
if ((!codec && !avctx->codec)) {
|
|
av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if ((codec && avctx->codec && codec != avctx->codec)) {
|
|
av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
|
|
"but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (!codec)
|
|
codec = avctx->codec;
|
|
|
|
if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
|
|
return AVERROR(EINVAL);
|
|
|
|
if (options)
|
|
av_dict_copy(&tmp, *options, 0);
|
|
|
|
ret = ff_lock_avcodec(avctx, codec);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
avctx->internal = av_mallocz(sizeof(AVCodecInternal));
|
|
if (!avctx->internal) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
|
|
avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool));
|
|
if (!avctx->internal->pool) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->to_free = av_frame_alloc();
|
|
if (!avctx->internal->to_free) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->compat_decode_frame = av_frame_alloc();
|
|
if (!avctx->internal->compat_decode_frame) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->buffer_frame = av_frame_alloc();
|
|
if (!avctx->internal->buffer_frame) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->buffer_pkt = av_packet_alloc();
|
|
if (!avctx->internal->buffer_pkt) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->ds.in_pkt = av_packet_alloc();
|
|
if (!avctx->internal->ds.in_pkt) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->last_pkt_props = av_packet_alloc();
|
|
if (!avctx->internal->last_pkt_props) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->internal->skip_samples_multiplier = 1;
|
|
|
|
if (codec->priv_data_size > 0) {
|
|
if (!avctx->priv_data) {
|
|
avctx->priv_data = av_mallocz(codec->priv_data_size);
|
|
if (!avctx->priv_data) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
if (codec->priv_class) {
|
|
*(const AVClass **)avctx->priv_data = codec->priv_class;
|
|
av_opt_set_defaults(avctx->priv_data);
|
|
}
|
|
}
|
|
if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
|
|
goto free_and_end;
|
|
} else {
|
|
avctx->priv_data = NULL;
|
|
}
|
|
if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
|
|
goto free_and_end;
|
|
|
|
if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
|
|
// only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions
|
|
if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height &&
|
|
(avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) {
|
|
if (avctx->coded_width && avctx->coded_height)
|
|
ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
|
|
else if (avctx->width && avctx->height)
|
|
ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
|
|
if (ret < 0)
|
|
goto free_and_end;
|
|
}
|
|
|
|
if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
|
|
&& ( av_image_check_size2(avctx->coded_width, avctx->coded_height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0
|
|
|| av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx) < 0)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
|
|
ff_set_dimensions(avctx, 0, 0);
|
|
}
|
|
|
|
if (avctx->width > 0 && avctx->height > 0) {
|
|
if (av_image_check_sar(avctx->width, avctx->height,
|
|
avctx->sample_aspect_ratio) < 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
|
|
avctx->sample_aspect_ratio.num,
|
|
avctx->sample_aspect_ratio.den);
|
|
avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
|
|
}
|
|
}
|
|
|
|
/* if the decoder init function was already called previously,
|
|
* free the already allocated subtitle_header before overwriting it */
|
|
if (av_codec_is_decoder(codec))
|
|
av_freep(&avctx->subtitle_header);
|
|
|
|
if (avctx->channels > FF_SANE_NB_CHANNELS) {
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->codec = codec;
|
|
if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
|
|
avctx->codec_id == AV_CODEC_ID_NONE) {
|
|
avctx->codec_type = codec->type;
|
|
avctx->codec_id = codec->id;
|
|
}
|
|
if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
|
|
&& avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
|
|
av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
avctx->frame_number = 0;
|
|
avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
|
|
|
|
if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) &&
|
|
avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
|
|
const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
|
|
AVCodec *codec2;
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"The %s '%s' is experimental but experimental codecs are not enabled, "
|
|
"add '-strict %d' if you want to use it.\n",
|
|
codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
|
|
codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
|
|
if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
|
|
av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
|
|
codec_string, codec2->name);
|
|
ret = AVERROR_EXPERIMENTAL;
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
|
|
(!avctx->time_base.num || !avctx->time_base.den)) {
|
|
avctx->time_base.num = 1;
|
|
avctx->time_base.den = avctx->sample_rate;
|
|
}
|
|
|
|
if (!HAVE_THREADS)
|
|
av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
|
|
|
|
if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) {
|
|
ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem
|
|
ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
|
|
ff_lock_avcodec(avctx, codec);
|
|
if (ret < 0)
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (HAVE_THREADS
|
|
&& !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
|
|
ret = ff_thread_init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS))
|
|
avctx->thread_count = 1;
|
|
|
|
if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
|
|
avctx->codec->max_lowres);
|
|
avctx->lowres = avctx->codec->max_lowres;
|
|
}
|
|
|
|
if (av_codec_is_encoder(avctx->codec)) {
|
|
int i;
|
|
#if FF_API_CODED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
avctx->coded_frame = av_frame_alloc();
|
|
if (!avctx->coded_frame) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto free_and_end;
|
|
}
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
|
|
if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (avctx->codec->sample_fmts) {
|
|
for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
|
|
if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
|
|
break;
|
|
if (avctx->channels == 1 &&
|
|
av_get_planar_sample_fmt(avctx->sample_fmt) ==
|
|
av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
|
|
avctx->sample_fmt = avctx->codec->sample_fmts[i];
|
|
break;
|
|
}
|
|
}
|
|
if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
|
|
char buf[128];
|
|
snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
|
|
(char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->codec->pix_fmts) {
|
|
for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
|
|
if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
|
|
break;
|
|
if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
|
|
&& !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
|
|
&& avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
|
|
char buf[128];
|
|
snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
|
|
(char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P ||
|
|
avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P ||
|
|
avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P ||
|
|
avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P ||
|
|
avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P)
|
|
avctx->color_range = AVCOL_RANGE_JPEG;
|
|
}
|
|
if (avctx->codec->supported_samplerates) {
|
|
for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
|
|
if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
|
|
break;
|
|
if (avctx->codec->supported_samplerates[i] == 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
|
|
avctx->sample_rate);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->sample_rate < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
|
|
avctx->sample_rate);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if (avctx->codec->channel_layouts) {
|
|
if (!avctx->channel_layout) {
|
|
av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
|
|
} else {
|
|
for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
|
|
if (avctx->channel_layout == avctx->codec->channel_layouts[i])
|
|
break;
|
|
if (avctx->codec->channel_layouts[i] == 0) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
}
|
|
if (avctx->channel_layout && avctx->channels) {
|
|
int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
if (channels != avctx->channels) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Channel layout '%s' with %d channels does not match number of specified channels %d\n",
|
|
buf, channels, avctx->channels);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
} else if (avctx->channel_layout) {
|
|
avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
}
|
|
if (avctx->channels < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n",
|
|
avctx->channels);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
if ( avctx->bits_per_raw_sample < 0
|
|
|| (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n",
|
|
avctx->bits_per_raw_sample, pixdesc->comp[0].depth);
|
|
avctx->bits_per_raw_sample = pixdesc->comp[0].depth;
|
|
}
|
|
if (avctx->width <= 0 || avctx->height <= 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
&& avctx->bit_rate>0 && avctx->bit_rate<1000) {
|
|
av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", avctx->bit_rate, avctx->bit_rate);
|
|
}
|
|
|
|
if (!avctx->rc_initial_buffer_occupancy)
|
|
avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4;
|
|
|
|
if (avctx->ticks_per_frame && avctx->time_base.num &&
|
|
avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"ticks_per_frame %d too large for the timebase %d/%d.",
|
|
avctx->ticks_per_frame,
|
|
avctx->time_base.num,
|
|
avctx->time_base.den);
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (avctx->hw_frames_ctx) {
|
|
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
|
|
if (frames_ctx->format != avctx->pix_fmt) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if (avctx->sw_pix_fmt != AV_PIX_FMT_NONE &&
|
|
avctx->sw_pix_fmt != frames_ctx->sw_format) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Mismatching AVCodecContext.sw_pix_fmt (%s) "
|
|
"and AVHWFramesContext.sw_format (%s)\n",
|
|
av_get_pix_fmt_name(avctx->sw_pix_fmt),
|
|
av_get_pix_fmt_name(frames_ctx->sw_format));
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
avctx->sw_pix_fmt = frames_ctx->sw_format;
|
|
}
|
|
}
|
|
|
|
avctx->pts_correction_num_faulty_pts =
|
|
avctx->pts_correction_num_faulty_dts = 0;
|
|
avctx->pts_correction_last_pts =
|
|
avctx->pts_correction_last_dts = INT64_MIN;
|
|
|
|
if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
|
|
&& avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"gray decoding requested but not enabled at configuration time\n");
|
|
|
|
if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
|
|
|| avctx->internal->frame_thread_encoder)) {
|
|
ret = avctx->codec->init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
|
|
ret=0;
|
|
|
|
if (av_codec_is_decoder(avctx->codec)) {
|
|
if (!avctx->bit_rate)
|
|
avctx->bit_rate = get_bit_rate(avctx);
|
|
/* validate channel layout from the decoder */
|
|
if (avctx->channel_layout) {
|
|
int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
if (!avctx->channels)
|
|
avctx->channels = channels;
|
|
else if (channels != avctx->channels) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Channel layout '%s' with %d channels does not match specified number of channels %d: "
|
|
"ignoring specified channel layout\n",
|
|
buf, channels, avctx->channels);
|
|
avctx->channel_layout = 0;
|
|
}
|
|
}
|
|
if (avctx->channels && avctx->channels < 0 ||
|
|
avctx->channels > FF_SANE_NB_CHANNELS) {
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if (avctx->sub_charenc) {
|
|
if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
|
|
"supported with subtitles codecs\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
} else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
|
|
av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
|
|
"subtitles character encoding will be ignored\n",
|
|
avctx->codec_descriptor->name);
|
|
avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
|
|
} else {
|
|
/* input character encoding is set for a text based subtitle
|
|
* codec at this point */
|
|
if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
|
|
avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
|
|
|
|
if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
|
|
#if CONFIG_ICONV
|
|
iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
|
|
if (cd == (iconv_t)-1) {
|
|
ret = AVERROR(errno);
|
|
av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
|
|
"with input character encoding \"%s\"\n", avctx->sub_charenc);
|
|
goto free_and_end;
|
|
}
|
|
iconv_close(cd);
|
|
#else
|
|
av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
|
|
"conversion needs a libavcodec built with iconv support "
|
|
"for this codec\n");
|
|
ret = AVERROR(ENOSYS);
|
|
goto free_and_end;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
#if FF_API_AVCTX_TIMEBASE
|
|
if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
|
|
avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
|
|
#endif
|
|
}
|
|
if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) {
|
|
av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
|
|
}
|
|
|
|
end:
|
|
ff_unlock_avcodec(codec);
|
|
if (options) {
|
|
av_dict_free(options);
|
|
*options = tmp;
|
|
}
|
|
|
|
return ret;
|
|
free_and_end:
|
|
if (avctx->codec &&
|
|
(avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
|
|
avctx->codec->close(avctx);
|
|
|
|
if (codec->priv_class && codec->priv_data_size)
|
|
av_opt_free(avctx->priv_data);
|
|
av_opt_free(avctx);
|
|
|
|
#if FF_API_CODED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
av_frame_free(&avctx->coded_frame);
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
|
|
av_dict_free(&tmp);
|
|
av_freep(&avctx->priv_data);
|
|
if (avctx->internal) {
|
|
av_frame_free(&avctx->internal->to_free);
|
|
av_frame_free(&avctx->internal->compat_decode_frame);
|
|
av_frame_free(&avctx->internal->buffer_frame);
|
|
av_packet_free(&avctx->internal->buffer_pkt);
|
|
av_packet_free(&avctx->internal->last_pkt_props);
|
|
|
|
av_packet_free(&avctx->internal->ds.in_pkt);
|
|
|
|
av_freep(&avctx->internal->pool);
|
|
}
|
|
av_freep(&avctx->internal);
|
|
avctx->codec = NULL;
|
|
goto end;
|
|
}
|
|
|
|
void avsubtitle_free(AVSubtitle *sub)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sub->num_rects; i++) {
|
|
av_freep(&sub->rects[i]->data[0]);
|
|
av_freep(&sub->rects[i]->data[1]);
|
|
av_freep(&sub->rects[i]->data[2]);
|
|
av_freep(&sub->rects[i]->data[3]);
|
|
av_freep(&sub->rects[i]->text);
|
|
av_freep(&sub->rects[i]->ass);
|
|
av_freep(&sub->rects[i]);
|
|
}
|
|
|
|
av_freep(&sub->rects);
|
|
|
|
memset(sub, 0, sizeof(AVSubtitle));
|
|
}
|
|
|
|
av_cold int avcodec_close(AVCodecContext *avctx)
|
|
{
|
|
int i;
|
|
|
|
if (!avctx)
|
|
return 0;
|
|
|
|
if (avcodec_is_open(avctx)) {
|
|
FramePool *pool = avctx->internal->pool;
|
|
if (CONFIG_FRAME_THREAD_ENCODER &&
|
|
avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
|
|
ff_frame_thread_encoder_free(avctx);
|
|
}
|
|
if (HAVE_THREADS && avctx->internal->thread_ctx)
|
|
ff_thread_free(avctx);
|
|
if (avctx->codec && avctx->codec->close)
|
|
avctx->codec->close(avctx);
|
|
avctx->internal->byte_buffer_size = 0;
|
|
av_freep(&avctx->internal->byte_buffer);
|
|
av_frame_free(&avctx->internal->to_free);
|
|
av_frame_free(&avctx->internal->compat_decode_frame);
|
|
av_frame_free(&avctx->internal->buffer_frame);
|
|
av_packet_free(&avctx->internal->buffer_pkt);
|
|
av_packet_free(&avctx->internal->last_pkt_props);
|
|
|
|
av_packet_free(&avctx->internal->ds.in_pkt);
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
|
|
av_buffer_pool_uninit(&pool->pools[i]);
|
|
av_freep(&avctx->internal->pool);
|
|
|
|
if (avctx->hwaccel && avctx->hwaccel->uninit)
|
|
avctx->hwaccel->uninit(avctx);
|
|
av_freep(&avctx->internal->hwaccel_priv_data);
|
|
|
|
ff_decode_bsfs_uninit(avctx);
|
|
|
|
av_freep(&avctx->internal);
|
|
}
|
|
|
|
for (i = 0; i < avctx->nb_coded_side_data; i++)
|
|
av_freep(&avctx->coded_side_data[i].data);
|
|
av_freep(&avctx->coded_side_data);
|
|
avctx->nb_coded_side_data = 0;
|
|
|
|
av_buffer_unref(&avctx->hw_frames_ctx);
|
|
av_buffer_unref(&avctx->hw_device_ctx);
|
|
|
|
if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
|
|
av_opt_free(avctx->priv_data);
|
|
av_opt_free(avctx);
|
|
av_freep(&avctx->priv_data);
|
|
if (av_codec_is_encoder(avctx->codec)) {
|
|
av_freep(&avctx->extradata);
|
|
#if FF_API_CODED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
av_frame_free(&avctx->coded_frame);
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
}
|
|
avctx->codec = NULL;
|
|
avctx->active_thread_type = 0;
|
|
|
|
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;
|
|
AVCodec *codec;
|
|
|
|
if (id == AV_CODEC_ID_NONE)
|
|
return "none";
|
|
cd = avcodec_descriptor_get(id);
|
|
if (cd)
|
|
return cd->name;
|
|
av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
|
|
codec = avcodec_find_decoder(id);
|
|
if (codec)
|
|
return codec->name;
|
|
codec = avcodec_find_encoder(id);
|
|
if (codec)
|
|
return codec->name;
|
|
return "unknown_codec";
|
|
}
|
|
|
|
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
|
|
{
|
|
int i, len, ret = 0;
|
|
|
|
#define TAG_PRINT(x) \
|
|
(((x) >= '0' && (x) <= '9') || \
|
|
((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
|
|
((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
len = snprintf(buf, buf_size,
|
|
TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
|
|
buf += len;
|
|
buf_size = buf_size > len ? buf_size - len : 0;
|
|
ret += len;
|
|
codec_tag >>= 8;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
|
|
{
|
|
const char *codec_type;
|
|
const char *codec_name;
|
|
const char *profile = NULL;
|
|
int64_t bitrate;
|
|
int new_line = 0;
|
|
AVRational display_aspect_ratio;
|
|
const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", ";
|
|
|
|
if (!buf || buf_size <= 0)
|
|
return;
|
|
codec_type = av_get_media_type_string(enc->codec_type);
|
|
codec_name = avcodec_get_name(enc->codec_id);
|
|
profile = avcodec_profile_name(enc->codec_id, enc->profile);
|
|
|
|
snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown",
|
|
codec_name);
|
|
buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
|
|
|
|
if (enc->codec && strcmp(enc->codec->name, codec_name))
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name);
|
|
|
|
if (profile)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
|
|
if ( enc->codec_type == AVMEDIA_TYPE_VIDEO
|
|
&& av_log_get_level() >= AV_LOG_VERBOSE
|
|
&& enc->refs)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d reference frame%s",
|
|
enc->refs, enc->refs > 1 ? "s" : "");
|
|
|
|
if (enc->codec_tag)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s / 0x%04X)",
|
|
av_fourcc2str(enc->codec_tag), enc->codec_tag);
|
|
|
|
switch (enc->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
{
|
|
char detail[256] = "(";
|
|
|
|
av_strlcat(buf, separator, buf_size);
|
|
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
"%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" :
|
|
av_get_pix_fmt_name(enc->pix_fmt));
|
|
if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE &&
|
|
enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth)
|
|
av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample);
|
|
if (enc->color_range != AVCOL_RANGE_UNSPECIFIED)
|
|
av_strlcatf(detail, sizeof(detail), "%s, ",
|
|
av_color_range_name(enc->color_range));
|
|
|
|
if (enc->colorspace != AVCOL_SPC_UNSPECIFIED ||
|
|
enc->color_primaries != AVCOL_PRI_UNSPECIFIED ||
|
|
enc->color_trc != AVCOL_TRC_UNSPECIFIED) {
|
|
if (enc->colorspace != (int)enc->color_primaries ||
|
|
enc->colorspace != (int)enc->color_trc) {
|
|
new_line = 1;
|
|
av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ",
|
|
av_color_space_name(enc->colorspace),
|
|
av_color_primaries_name(enc->color_primaries),
|
|
av_color_transfer_name(enc->color_trc));
|
|
} else
|
|
av_strlcatf(detail, sizeof(detail), "%s, ",
|
|
av_get_colorspace_name(enc->colorspace));
|
|
}
|
|
|
|
if (enc->field_order != AV_FIELD_UNKNOWN) {
|
|
const char *field_order = "progressive";
|
|
if (enc->field_order == AV_FIELD_TT)
|
|
field_order = "top first";
|
|
else if (enc->field_order == AV_FIELD_BB)
|
|
field_order = "bottom first";
|
|
else if (enc->field_order == AV_FIELD_TB)
|
|
field_order = "top coded first (swapped)";
|
|
else if (enc->field_order == AV_FIELD_BT)
|
|
field_order = "bottom coded first (swapped)";
|
|
|
|
av_strlcatf(detail, sizeof(detail), "%s, ", field_order);
|
|
}
|
|
|
|
if (av_log_get_level() >= AV_LOG_VERBOSE &&
|
|
enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
|
|
av_strlcatf(detail, sizeof(detail), "%s, ",
|
|
av_chroma_location_name(enc->chroma_sample_location));
|
|
|
|
if (strlen(detail) > 1) {
|
|
detail[strlen(detail) - 2] = 0;
|
|
av_strlcatf(buf, buf_size, "%s)", detail);
|
|
}
|
|
}
|
|
|
|
if (enc->width) {
|
|
av_strlcat(buf, new_line ? separator : ", ", buf_size);
|
|
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
"%dx%d",
|
|
enc->width, enc->height);
|
|
|
|
if (av_log_get_level() >= AV_LOG_VERBOSE &&
|
|
(enc->width != enc->coded_width ||
|
|
enc->height != enc->coded_height))
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%dx%d)", enc->coded_width, enc->coded_height);
|
|
|
|
if (enc->sample_aspect_ratio.num) {
|
|
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
|
|
enc->width * (int64_t)enc->sample_aspect_ratio.num,
|
|
enc->height * (int64_t)enc->sample_aspect_ratio.den,
|
|
1024 * 1024);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" [SAR %d:%d DAR %d:%d]",
|
|
enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
|
|
display_aspect_ratio.num, display_aspect_ratio.den);
|
|
}
|
|
if (av_log_get_level() >= AV_LOG_DEBUG) {
|
|
int g = av_gcd(enc->time_base.num, enc->time_base.den);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d/%d",
|
|
enc->time_base.num / g, enc->time_base.den / g);
|
|
}
|
|
}
|
|
if (encode) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", q=%d-%d", enc->qmin, enc->qmax);
|
|
} else {
|
|
if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", Closed Captions");
|
|
if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", lossless");
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
av_strlcat(buf, separator, buf_size);
|
|
|
|
if (enc->sample_rate) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
"%d Hz, ", enc->sample_rate);
|
|
}
|
|
av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
|
|
if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %s", av_get_sample_fmt_name(enc->sample_fmt));
|
|
}
|
|
if ( enc->bits_per_raw_sample > 0
|
|
&& enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%d bit)", enc->bits_per_raw_sample);
|
|
if (av_log_get_level() >= AV_LOG_VERBOSE) {
|
|
if (enc->initial_padding)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", delay %d", enc->initial_padding);
|
|
if (enc->trailing_padding)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", padding %d", enc->trailing_padding);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_DATA:
|
|
if (av_log_get_level() >= AV_LOG_DEBUG) {
|
|
int g = av_gcd(enc->time_base.num, enc->time_base.den);
|
|
if (g)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d/%d",
|
|
enc->time_base.num / g, enc->time_base.den / g);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
if (enc->width)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %dx%d", enc->width, enc->height);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
if (encode) {
|
|
if (enc->flags & AV_CODEC_FLAG_PASS1)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", pass 1");
|
|
if (enc->flags & AV_CODEC_FLAG_PASS2)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", pass 2");
|
|
}
|
|
bitrate = get_bit_rate(enc);
|
|
if (bitrate != 0) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %"PRId64" kb/s", bitrate / 1000);
|
|
} else if (enc->rc_max_rate > 0) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", max. %"PRId64" kb/s", enc->rc_max_rate / 1000);
|
|
}
|
|
}
|
|
|
|
const char *av_get_profile_name(const AVCodec *codec, int profile)
|
|
{
|
|
const AVProfile *p;
|
|
if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
|
|
return NULL;
|
|
|
|
for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
|
|
if (p->profile == profile)
|
|
return p->name;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
|
|
{
|
|
const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
|
|
const AVProfile *p;
|
|
|
|
if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
|
|
return NULL;
|
|
|
|
for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
|
|
if (p->profile == profile)
|
|
return p->name;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
unsigned avcodec_version(void)
|
|
{
|
|
// av_assert0(AV_CODEC_ID_V410==164);
|
|
av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
|
|
av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
|
|
// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
|
|
av_assert0(AV_CODEC_ID_SRT==94216);
|
|
av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
|
|
|
|
return LIBAVCODEC_VERSION_INT;
|
|
}
|
|
|
|
const char *avcodec_configuration(void)
|
|
{
|
|
return FFMPEG_CONFIGURATION;
|
|
}
|
|
|
|
const char *avcodec_license(void)
|
|
{
|
|
#define LICENSE_PREFIX "libavcodec license: "
|
|
return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
|
|
}
|
|
|
|
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
|
|
{
|
|
switch (codec_id) {
|
|
case AV_CODEC_ID_8SVX_EXP:
|
|
case AV_CODEC_ID_8SVX_FIB:
|
|
case AV_CODEC_ID_ADPCM_CT:
|
|
case AV_CODEC_ID_ADPCM_IMA_APC:
|
|
case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
|
|
case AV_CODEC_ID_ADPCM_IMA_OKI:
|
|
case AV_CODEC_ID_ADPCM_IMA_WS:
|
|
case AV_CODEC_ID_ADPCM_G722:
|
|
case AV_CODEC_ID_ADPCM_YAMAHA:
|
|
case AV_CODEC_ID_ADPCM_AICA:
|
|
return 4;
|
|
case AV_CODEC_ID_DSD_LSBF:
|
|
case AV_CODEC_ID_DSD_MSBF:
|
|
case AV_CODEC_ID_DSD_LSBF_PLANAR:
|
|
case AV_CODEC_ID_DSD_MSBF_PLANAR:
|
|
case AV_CODEC_ID_PCM_ALAW:
|
|
case AV_CODEC_ID_PCM_MULAW:
|
|
case AV_CODEC_ID_PCM_S8:
|
|
case AV_CODEC_ID_PCM_S8_PLANAR:
|
|
case AV_CODEC_ID_PCM_U8:
|
|
case AV_CODEC_ID_PCM_ZORK:
|
|
case AV_CODEC_ID_SDX2_DPCM:
|
|
return 8;
|
|
case AV_CODEC_ID_PCM_S16BE:
|
|
case AV_CODEC_ID_PCM_S16BE_PLANAR:
|
|
case AV_CODEC_ID_PCM_S16LE:
|
|
case AV_CODEC_ID_PCM_S16LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U16BE:
|
|
case AV_CODEC_ID_PCM_U16LE:
|
|
return 16;
|
|
case AV_CODEC_ID_PCM_S24DAUD:
|
|
case AV_CODEC_ID_PCM_S24BE:
|
|
case AV_CODEC_ID_PCM_S24LE:
|
|
case AV_CODEC_ID_PCM_S24LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U24BE:
|
|
case AV_CODEC_ID_PCM_U24LE:
|
|
return 24;
|
|
case AV_CODEC_ID_PCM_S32BE:
|
|
case AV_CODEC_ID_PCM_S32LE:
|
|
case AV_CODEC_ID_PCM_S32LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U32BE:
|
|
case AV_CODEC_ID_PCM_U32LE:
|
|
case AV_CODEC_ID_PCM_F32BE:
|
|
case AV_CODEC_ID_PCM_F32LE:
|
|
case AV_CODEC_ID_PCM_F24LE:
|
|
case AV_CODEC_ID_PCM_F16LE:
|
|
return 32;
|
|
case AV_CODEC_ID_PCM_F64BE:
|
|
case AV_CODEC_ID_PCM_F64LE:
|
|
case AV_CODEC_ID_PCM_S64BE:
|
|
case AV_CODEC_ID_PCM_S64LE:
|
|
return 64;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
|
|
{
|
|
static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
|
|
[AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
|
|
[AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
|
|
[AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
|
|
[AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
|
|
[AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
|
|
[AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
|
|
[AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
|
|
[AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
|
|
[AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
|
|
[AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
|
|
[AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
|
|
};
|
|
if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
|
|
return AV_CODEC_ID_NONE;
|
|
if (be < 0 || be > 1)
|
|
be = AV_NE(1, 0);
|
|
return map[fmt][be];
|
|
}
|
|
|
|
int av_get_bits_per_sample(enum AVCodecID codec_id)
|
|
{
|
|
switch (codec_id) {
|
|
case AV_CODEC_ID_ADPCM_SBPRO_2:
|
|
return 2;
|
|
case AV_CODEC_ID_ADPCM_SBPRO_3:
|
|
return 3;
|
|
case AV_CODEC_ID_ADPCM_SBPRO_4:
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
case AV_CODEC_ID_ADPCM_IMA_QT:
|
|
case AV_CODEC_ID_ADPCM_SWF:
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
return 4;
|
|
default:
|
|
return av_get_exact_bits_per_sample(codec_id);
|
|
}
|
|
}
|
|
|
|
static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
|
|
uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
|
|
uint8_t * extradata, int frame_size, int frame_bytes)
|
|
{
|
|
int bps = av_get_exact_bits_per_sample(id);
|
|
int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
|
|
|
|
/* codecs with an exact constant bits per sample */
|
|
if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
|
|
return (frame_bytes * 8LL) / (bps * ch);
|
|
bps = bits_per_coded_sample;
|
|
|
|
/* codecs with a fixed packet duration */
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_ADX: return 32;
|
|
case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
|
|
case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
|
|
case AV_CODEC_ID_AMR_NB:
|
|
case AV_CODEC_ID_EVRC:
|
|
case AV_CODEC_ID_GSM:
|
|
case AV_CODEC_ID_QCELP:
|
|
case AV_CODEC_ID_RA_288: return 160;
|
|
case AV_CODEC_ID_AMR_WB:
|
|
case AV_CODEC_ID_GSM_MS: return 320;
|
|
case AV_CODEC_ID_MP1: return 384;
|
|
case AV_CODEC_ID_ATRAC1: return 512;
|
|
case AV_CODEC_ID_ATRAC3: return 1024 * framecount;
|
|
case AV_CODEC_ID_ATRAC3P: return 2048;
|
|
case AV_CODEC_ID_MP2:
|
|
case AV_CODEC_ID_MUSEPACK7: return 1152;
|
|
case AV_CODEC_ID_AC3: return 1536;
|
|
}
|
|
|
|
if (sr > 0) {
|
|
/* calc from sample rate */
|
|
if (id == AV_CODEC_ID_TTA)
|
|
return 256 * sr / 245;
|
|
else if (id == AV_CODEC_ID_DST)
|
|
return 588 * sr / 44100;
|
|
|
|
if (ch > 0) {
|
|
/* calc from sample rate and channels */
|
|
if (id == AV_CODEC_ID_BINKAUDIO_DCT)
|
|
return (480 << (sr / 22050)) / ch;
|
|
}
|
|
|
|
if (id == AV_CODEC_ID_MP3)
|
|
return sr <= 24000 ? 576 : 1152;
|
|
}
|
|
|
|
if (ba > 0) {
|
|
/* calc from block_align */
|
|
if (id == AV_CODEC_ID_SIPR) {
|
|
switch (ba) {
|
|
case 20: return 160;
|
|
case 19: return 144;
|
|
case 29: return 288;
|
|
case 37: return 480;
|
|
}
|
|
} else if (id == AV_CODEC_ID_ILBC) {
|
|
switch (ba) {
|
|
case 38: return 160;
|
|
case 50: return 240;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (frame_bytes > 0) {
|
|
/* calc from frame_bytes only */
|
|
if (id == AV_CODEC_ID_TRUESPEECH)
|
|
return 240 * (frame_bytes / 32);
|
|
if (id == AV_CODEC_ID_NELLYMOSER)
|
|
return 256 * (frame_bytes / 64);
|
|
if (id == AV_CODEC_ID_RA_144)
|
|
return 160 * (frame_bytes / 20);
|
|
if (id == AV_CODEC_ID_G723_1)
|
|
return 240 * (frame_bytes / 24);
|
|
|
|
if (bps > 0) {
|
|
/* calc from frame_bytes and bits_per_coded_sample */
|
|
if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
|
|
return frame_bytes * 8 / bps;
|
|
}
|
|
|
|
if (ch > 0 && ch < INT_MAX/16) {
|
|
/* calc from frame_bytes and channels */
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_AFC:
|
|
return frame_bytes / (9 * ch) * 16;
|
|
case AV_CODEC_ID_ADPCM_PSX:
|
|
case AV_CODEC_ID_ADPCM_DTK:
|
|
return frame_bytes / (16 * ch) * 28;
|
|
case AV_CODEC_ID_ADPCM_4XM:
|
|
case AV_CODEC_ID_ADPCM_IMA_DAT4:
|
|
case AV_CODEC_ID_ADPCM_IMA_ISS:
|
|
return (frame_bytes - 4 * ch) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
|
|
return (frame_bytes - 4) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_IMA_AMV:
|
|
return (frame_bytes - 8) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_THP:
|
|
case AV_CODEC_ID_ADPCM_THP_LE:
|
|
if (extradata)
|
|
return frame_bytes * 14 / (8 * ch);
|
|
break;
|
|
case AV_CODEC_ID_ADPCM_XA:
|
|
return (frame_bytes / 128) * 224 / ch;
|
|
case AV_CODEC_ID_INTERPLAY_DPCM:
|
|
return (frame_bytes - 6 - ch) / ch;
|
|
case AV_CODEC_ID_ROQ_DPCM:
|
|
return (frame_bytes - 8) / ch;
|
|
case AV_CODEC_ID_XAN_DPCM:
|
|
return (frame_bytes - 2 * ch) / ch;
|
|
case AV_CODEC_ID_MACE3:
|
|
return 3 * frame_bytes / ch;
|
|
case AV_CODEC_ID_MACE6:
|
|
return 6 * frame_bytes / ch;
|
|
case AV_CODEC_ID_PCM_LXF:
|
|
return 2 * (frame_bytes / (5 * ch));
|
|
case AV_CODEC_ID_IAC:
|
|
case AV_CODEC_ID_IMC:
|
|
return 4 * frame_bytes / ch;
|
|
}
|
|
|
|
if (tag) {
|
|
/* calc from frame_bytes, channels, and codec_tag */
|
|
if (id == AV_CODEC_ID_SOL_DPCM) {
|
|
if (tag == 3)
|
|
return frame_bytes / ch;
|
|
else
|
|
return frame_bytes * 2 / ch;
|
|
}
|
|
}
|
|
|
|
if (ba > 0) {
|
|
/* calc from frame_bytes, channels, and block_align */
|
|
int blocks = frame_bytes / ba;
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
if (bps < 2 || bps > 5)
|
|
return 0;
|
|
return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8);
|
|
case AV_CODEC_ID_ADPCM_IMA_DK3:
|
|
return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
|
|
case AV_CODEC_ID_ADPCM_IMA_DK4:
|
|
return blocks * (1 + (ba - 4 * ch) * 2 / ch);
|
|
case AV_CODEC_ID_ADPCM_IMA_RAD:
|
|
return blocks * ((ba - 4 * ch) * 2 / ch);
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
return blocks * (2 + (ba - 7 * ch) * 2 / ch);
|
|
case AV_CODEC_ID_ADPCM_MTAF:
|
|
return blocks * (ba - 16) * 2 / ch;
|
|
}
|
|
}
|
|
|
|
if (bps > 0) {
|
|
/* calc from frame_bytes, channels, and bits_per_coded_sample */
|
|
switch (id) {
|
|
case AV_CODEC_ID_PCM_DVD:
|
|
if(bps<4 || frame_bytes<3)
|
|
return 0;
|
|
return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
|
|
case AV_CODEC_ID_PCM_BLURAY:
|
|
if(bps<4 || frame_bytes<4)
|
|
return 0;
|
|
return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
|
|
case AV_CODEC_ID_S302M:
|
|
return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fall back on using frame_size */
|
|
if (frame_size > 1 && frame_bytes)
|
|
return frame_size;
|
|
|
|
//For WMA we currently have no other means to calculate duration thus we
|
|
//do it here by assuming CBR, which is true for all known cases.
|
|
if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
|
|
if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
|
|
return (frame_bytes * 8LL * sr) / bitrate;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
|
|
{
|
|
return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
|
|
avctx->channels, avctx->block_align,
|
|
avctx->codec_tag, avctx->bits_per_coded_sample,
|
|
avctx->bit_rate, avctx->extradata, avctx->frame_size,
|
|
frame_bytes);
|
|
}
|
|
|
|
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
|
|
{
|
|
return get_audio_frame_duration(par->codec_id, par->sample_rate,
|
|
par->channels, par->block_align,
|
|
par->codec_tag, par->bits_per_coded_sample,
|
|
par->bit_rate, par->extradata, par->frame_size,
|
|
frame_bytes);
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
int ff_thread_init(AVCodecContext *s)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
#endif
|
|
|
|
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
|
|
{
|
|
unsigned int n = 0;
|
|
|
|
while (v >= 0xff) {
|
|
*s++ = 0xff;
|
|
v -= 0xff;
|
|
n++;
|
|
}
|
|
*s = v;
|
|
n++;
|
|
return n;
|
|
}
|
|
|
|
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
|
|
{
|
|
int i;
|
|
for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
|
|
return i;
|
|
}
|
|
|
|
static AVHWAccel *first_hwaccel = NULL;
|
|
static AVHWAccel **last_hwaccel = &first_hwaccel;
|
|
|
|
void av_register_hwaccel(AVHWAccel *hwaccel)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int avpriv_lock_avformat(void)
|
|
{
|
|
if (lockmgr_cb) {
|
|
if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avpriv_unlock_avformat(void)
|
|
{
|
|
if (lockmgr_cb) {
|
|
if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned int avpriv_toupper4(unsigned int x)
|
|
{
|
|
return av_toupper(x & 0xFF) +
|
|
(av_toupper((x >> 8) & 0xFF) << 8) +
|
|
(av_toupper((x >> 16) & 0xFF) << 16) +
|
|
((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
|
|
}
|
|
|
|
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
|
|
{
|
|
int ret;
|
|
|
|
dst->owner[0] = src->owner[0];
|
|
dst->owner[1] = src->owner[1];
|
|
|
|
ret = av_frame_ref(dst->f, src->f);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
av_assert0(!dst->progress);
|
|
|
|
if (src->progress &&
|
|
!(dst->progress = av_buffer_ref(src->progress))) {
|
|
ff_thread_release_buffer(dst->owner[0], dst);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
|
|
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
|
|
{
|
|
return ff_get_format(avctx, fmt);
|
|
}
|
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
|
|
{
|
|
f->owner[0] = f->owner[1] = avctx;
|
|
return ff_get_buffer(avctx, f->f, flags);
|
|
}
|
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
|
|
{
|
|
if (f->f)
|
|
av_frame_unref(f->f);
|
|
}
|
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
int ff_thread_can_start_frame(AVCodecContext *avctx)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int ff_alloc_entries(AVCodecContext *avctx, int count)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void ff_reset_entries(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
int avcodec_is_open(AVCodecContext *s)
|
|
{
|
|
return !!s->internal;
|
|
}
|
|
|
|
int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
|
|
{
|
|
int ret;
|
|
char *str;
|
|
|
|
ret = av_bprint_finalize(buf, &str);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (!av_bprint_is_complete(buf)) {
|
|
av_free(str);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
avctx->extradata = str;
|
|
/* Note: the string is NUL terminated (so extradata can be read as a
|
|
* string), but the ending character is not accounted in the size (in
|
|
* binary formats you are likely not supposed to mux that character). When
|
|
* extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
|
|
* zeros. */
|
|
avctx->extradata_size = buf->len;
|
|
return 0;
|
|
}
|
|
|
|
const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
|
|
const uint8_t *end,
|
|
uint32_t *av_restrict state)
|
|
{
|
|
int i;
|
|
|
|
av_assert0(p <= end);
|
|
if (p >= end)
|
|
return end;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
uint32_t tmp = *state << 8;
|
|
*state = tmp + *(p++);
|
|
if (tmp == 0x100 || p == end)
|
|
return p;
|
|
}
|
|
|
|
while (p < end) {
|
|
if (p[-1] > 1 ) p += 3;
|
|
else if (p[-2] ) p += 2;
|
|
else if (p[-3]|(p[-1]-1)) p++;
|
|
else {
|
|
p++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
p = FFMIN(p, end) - 4;
|
|
*state = AV_RB32(p);
|
|
|
|
return p + 4;
|
|
}
|
|
|
|
AVCPBProperties *av_cpb_properties_alloc(size_t *size)
|
|
{
|
|
AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
|
|
if (!props)
|
|
return NULL;
|
|
|
|
if (size)
|
|
*size = sizeof(*props);
|
|
|
|
props->vbv_delay = UINT64_MAX;
|
|
|
|
return props;
|
|
}
|
|
|
|
AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
|
|
{
|
|
AVPacketSideData *tmp;
|
|
AVCPBProperties *props;
|
|
size_t size;
|
|
|
|
props = av_cpb_properties_alloc(&size);
|
|
if (!props)
|
|
return NULL;
|
|
|
|
tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
|
|
if (!tmp) {
|
|
av_freep(&props);
|
|
return NULL;
|
|
}
|
|
|
|
avctx->coded_side_data = tmp;
|
|
avctx->nb_coded_side_data++;
|
|
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
|
|
|
|
return props;
|
|
}
|
|
|
|
static void codec_parameters_reset(AVCodecParameters *par)
|
|
{
|
|
av_freep(&par->extradata);
|
|
|
|
memset(par, 0, sizeof(*par));
|
|
|
|
par->codec_type = AVMEDIA_TYPE_UNKNOWN;
|
|
par->codec_id = AV_CODEC_ID_NONE;
|
|
par->format = -1;
|
|
par->field_order = AV_FIELD_UNKNOWN;
|
|
par->color_range = AVCOL_RANGE_UNSPECIFIED;
|
|
par->color_primaries = AVCOL_PRI_UNSPECIFIED;
|
|
par->color_trc = AVCOL_TRC_UNSPECIFIED;
|
|
par->color_space = AVCOL_SPC_UNSPECIFIED;
|
|
par->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
|
|
par->sample_aspect_ratio = (AVRational){ 0, 1 };
|
|
par->profile = FF_PROFILE_UNKNOWN;
|
|
par->level = FF_LEVEL_UNKNOWN;
|
|
}
|
|
|
|
AVCodecParameters *avcodec_parameters_alloc(void)
|
|
{
|
|
AVCodecParameters *par = av_mallocz(sizeof(*par));
|
|
|
|
if (!par)
|
|
return NULL;
|
|
codec_parameters_reset(par);
|
|
return par;
|
|
}
|
|
|
|
void avcodec_parameters_free(AVCodecParameters **ppar)
|
|
{
|
|
AVCodecParameters *par = *ppar;
|
|
|
|
if (!par)
|
|
return;
|
|
codec_parameters_reset(par);
|
|
|
|
av_freep(ppar);
|
|
}
|
|
|
|
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
|
|
{
|
|
codec_parameters_reset(dst);
|
|
memcpy(dst, src, sizeof(*dst));
|
|
|
|
dst->extradata = NULL;
|
|
dst->extradata_size = 0;
|
|
if (src->extradata) {
|
|
dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!dst->extradata)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(dst->extradata, src->extradata, src->extradata_size);
|
|
dst->extradata_size = src->extradata_size;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_parameters_from_context(AVCodecParameters *par,
|
|
const AVCodecContext *codec)
|
|
{
|
|
codec_parameters_reset(par);
|
|
|
|
par->codec_type = codec->codec_type;
|
|
par->codec_id = codec->codec_id;
|
|
par->codec_tag = codec->codec_tag;
|
|
|
|
par->bit_rate = codec->bit_rate;
|
|
par->bits_per_coded_sample = codec->bits_per_coded_sample;
|
|
par->bits_per_raw_sample = codec->bits_per_raw_sample;
|
|
par->profile = codec->profile;
|
|
par->level = codec->level;
|
|
|
|
switch (par->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
par->format = codec->pix_fmt;
|
|
par->width = codec->width;
|
|
par->height = codec->height;
|
|
par->field_order = codec->field_order;
|
|
par->color_range = codec->color_range;
|
|
par->color_primaries = codec->color_primaries;
|
|
par->color_trc = codec->color_trc;
|
|
par->color_space = codec->colorspace;
|
|
par->chroma_location = codec->chroma_sample_location;
|
|
par->sample_aspect_ratio = codec->sample_aspect_ratio;
|
|
par->video_delay = codec->has_b_frames;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
par->format = codec->sample_fmt;
|
|
par->channel_layout = codec->channel_layout;
|
|
par->channels = codec->channels;
|
|
par->sample_rate = codec->sample_rate;
|
|
par->block_align = codec->block_align;
|
|
par->frame_size = codec->frame_size;
|
|
par->initial_padding = codec->initial_padding;
|
|
par->trailing_padding = codec->trailing_padding;
|
|
par->seek_preroll = codec->seek_preroll;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
par->width = codec->width;
|
|
par->height = codec->height;
|
|
break;
|
|
}
|
|
|
|
if (codec->extradata) {
|
|
par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!par->extradata)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(par->extradata, codec->extradata, codec->extradata_size);
|
|
par->extradata_size = codec->extradata_size;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_parameters_to_context(AVCodecContext *codec,
|
|
const AVCodecParameters *par)
|
|
{
|
|
codec->codec_type = par->codec_type;
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|
codec->codec_id = par->codec_id;
|
|
codec->codec_tag = par->codec_tag;
|
|
|
|
codec->bit_rate = par->bit_rate;
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|
codec->bits_per_coded_sample = par->bits_per_coded_sample;
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|
codec->bits_per_raw_sample = par->bits_per_raw_sample;
|
|
codec->profile = par->profile;
|
|
codec->level = par->level;
|
|
|
|
switch (par->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
codec->pix_fmt = par->format;
|
|
codec->width = par->width;
|
|
codec->height = par->height;
|
|
codec->field_order = par->field_order;
|
|
codec->color_range = par->color_range;
|
|
codec->color_primaries = par->color_primaries;
|
|
codec->color_trc = par->color_trc;
|
|
codec->colorspace = par->color_space;
|
|
codec->chroma_sample_location = par->chroma_location;
|
|
codec->sample_aspect_ratio = par->sample_aspect_ratio;
|
|
codec->has_b_frames = par->video_delay;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
codec->sample_fmt = par->format;
|
|
codec->channel_layout = par->channel_layout;
|
|
codec->channels = par->channels;
|
|
codec->sample_rate = par->sample_rate;
|
|
codec->block_align = par->block_align;
|
|
codec->frame_size = par->frame_size;
|
|
codec->delay =
|
|
codec->initial_padding = par->initial_padding;
|
|
codec->trailing_padding = par->trailing_padding;
|
|
codec->seek_preroll = par->seek_preroll;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
codec->width = par->width;
|
|
codec->height = par->height;
|
|
break;
|
|
}
|
|
|
|
if (par->extradata) {
|
|
av_freep(&codec->extradata);
|
|
codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!codec->extradata)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(codec->extradata, par->extradata, par->extradata_size);
|
|
codec->extradata_size = par->extradata_size;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len,
|
|
void **data, size_t *sei_size)
|
|
{
|
|
AVFrameSideData *side_data = NULL;
|
|
uint8_t *sei_data;
|
|
|
|
if (frame)
|
|
side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
|
|
|
|
if (!side_data) {
|
|
*data = NULL;
|
|
return 0;
|
|
}
|
|
|
|
*sei_size = side_data->size + 11;
|
|
*data = av_mallocz(*sei_size + prefix_len);
|
|
if (!*data)
|
|
return AVERROR(ENOMEM);
|
|
sei_data = (uint8_t*)*data + prefix_len;
|
|
|
|
// country code
|
|
sei_data[0] = 181;
|
|
sei_data[1] = 0;
|
|
sei_data[2] = 49;
|
|
|
|
/**
|
|
* 'GA94' is standard in North America for ATSC, but hard coding
|
|
* this style may not be the right thing to do -- other formats
|
|
* do exist. This information is not available in the side_data
|
|
* so we are going with this right now.
|
|
*/
|
|
AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4'));
|
|
sei_data[7] = 3;
|
|
sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40;
|
|
sei_data[9] = 0;
|
|
|
|
memcpy(sei_data + 10, side_data->data, side_data->size);
|
|
|
|
sei_data[side_data->size+10] = 255;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
|
|
{
|
|
AVRational framerate = avctx->framerate;
|
|
int bits_per_coded_sample = avctx->bits_per_coded_sample;
|
|
int64_t bitrate;
|
|
|
|
if (!(framerate.num && framerate.den))
|
|
framerate = av_inv_q(avctx->time_base);
|
|
if (!(framerate.num && framerate.den))
|
|
return 0;
|
|
|
|
if (!bits_per_coded_sample) {
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
bits_per_coded_sample = av_get_bits_per_pixel(desc);
|
|
}
|
|
bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
|
|
framerate.num / framerate.den;
|
|
|
|
return bitrate;
|
|
}
|