mirror of https://git.ffmpeg.org/ffmpeg.git
1920 lines
58 KiB
C
1920 lines
58 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 Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/crc.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/audioconvert.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 "avcodec.h"
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#include "dsputil.h"
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#include "libavutil/opt.h"
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#include "imgconvert.h"
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#include "thread.h"
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#include "audioconvert.h"
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#include "internal.h"
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#include "bytestream.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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static int volatile entangled_thread_counter=0;
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static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
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static void *codec_mutex;
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static void *avformat_mutex;
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void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
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{
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if(min_size < *size)
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return ptr;
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min_size= FFMAX(17*min_size/16 + 32, min_size);
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ptr= av_realloc(ptr, min_size);
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if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
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min_size= 0;
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*size= min_size;
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return ptr;
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}
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void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
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{
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void **p = ptr;
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if (min_size < *size)
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return;
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min_size= FFMAX(17*min_size/16 + 32, min_size);
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av_free(*p);
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*p = av_malloc(min_size);
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if (!*p) min_size = 0;
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*size= min_size;
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}
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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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void **p = ptr;
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if (min_size > SIZE_MAX - FF_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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av_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
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if (*size)
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memset((uint8_t *)*p + min_size, 0, FF_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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AVCodec *av_codec_next(AVCodec *c){
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if(c) return c->next;
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else return first_avcodec;
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}
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static 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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ff_dsputil_static_init();
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}
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static av_always_inline int codec_is_encoder(AVCodec *codec)
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{
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return codec && (codec->encode || codec->encode2);
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}
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static av_always_inline int codec_is_decoder(AVCodec *codec)
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{
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return codec && codec->decode;
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}
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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 = &first_avcodec;
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while (*p != NULL) p = &(*p)->next;
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*p = codec;
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codec->next = NULL;
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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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unsigned avcodec_get_edge_width(void)
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{
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return EDGE_WIDTH;
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}
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void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
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s->coded_width = width;
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s->coded_height= height;
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s->width = -((-width )>>s->lowres);
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s->height= -((-height)>>s->lowres);
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}
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#define INTERNAL_BUFFER_SIZE (32+1)
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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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switch(s->pix_fmt){
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case PIX_FMT_YUV420P:
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case PIX_FMT_YUYV422:
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case PIX_FMT_UYVY422:
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case PIX_FMT_YUV422P:
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case PIX_FMT_YUV440P:
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case PIX_FMT_YUV444P:
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case PIX_FMT_GBRP:
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case PIX_FMT_GRAY8:
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case PIX_FMT_GRAY16BE:
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case PIX_FMT_GRAY16LE:
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case PIX_FMT_YUVJ420P:
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case PIX_FMT_YUVJ422P:
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case PIX_FMT_YUVJ440P:
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case PIX_FMT_YUVJ444P:
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case PIX_FMT_YUVA420P:
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case PIX_FMT_YUV420P9LE:
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case PIX_FMT_YUV420P9BE:
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case PIX_FMT_YUV420P10LE:
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case PIX_FMT_YUV420P10BE:
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case PIX_FMT_YUV422P9LE:
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case PIX_FMT_YUV422P9BE:
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case PIX_FMT_YUV422P10LE:
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case PIX_FMT_YUV422P10BE:
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case PIX_FMT_YUV444P9LE:
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case PIX_FMT_YUV444P9BE:
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case PIX_FMT_YUV444P10LE:
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case PIX_FMT_YUV444P10BE:
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case PIX_FMT_GBRP9LE:
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case PIX_FMT_GBRP9BE:
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case PIX_FMT_GBRP10LE:
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case PIX_FMT_GBRP10BE:
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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 PIX_FMT_YUV411P:
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case PIX_FMT_UYYVYY411:
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w_align=32;
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h_align=8;
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break;
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case PIX_FMT_YUV410P:
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if(s->codec_id == 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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case PIX_FMT_RGB555:
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if(s->codec_id == 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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case PIX_FMT_PAL8:
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case PIX_FMT_BGR8:
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case PIX_FMT_RGB8:
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if(s->codec_id == CODEC_ID_SMC){
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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 PIX_FMT_BGR24:
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if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == 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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default:
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w_align= 1;
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h_align= 1;
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break;
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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 == CODEC_ID_H264 || s->lowres)
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*height+=2; // 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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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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int chroma_shift = av_pix_fmt_descriptors[s->pix_fmt].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_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)
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{
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int ch, planar, needed_size, ret = 0;
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needed_size = av_samples_get_buffer_size(NULL, nb_channels,
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frame->nb_samples, sample_fmt,
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align);
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if (buf_size < needed_size)
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return AVERROR(EINVAL);
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planar = av_sample_fmt_is_planar(sample_fmt);
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if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
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if (!(frame->extended_data = av_mallocz(nb_channels *
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sizeof(*frame->extended_data))))
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return AVERROR(ENOMEM);
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} else {
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frame->extended_data = frame->data;
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}
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if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
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buf, nb_channels, frame->nb_samples,
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sample_fmt, align)) < 0) {
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if (frame->extended_data != frame->data)
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av_free(frame->extended_data);
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return ret;
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}
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if (frame->extended_data != frame->data) {
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for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
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frame->data[ch] = frame->extended_data[ch];
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}
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return ret;
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}
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static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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InternalBuffer *buf;
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int buf_size, ret;
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buf_size = av_samples_get_buffer_size(NULL, avctx->channels,
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frame->nb_samples, avctx->sample_fmt,
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32);
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if (buf_size < 0)
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return AVERROR(EINVAL);
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/* allocate InternalBuffer if needed */
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if (!avci->buffer) {
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avci->buffer = av_mallocz(sizeof(InternalBuffer));
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if (!avci->buffer)
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return AVERROR(ENOMEM);
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}
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buf = avci->buffer;
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/* if there is a previously-used internal buffer, check its size and
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channel count to see if we can reuse it */
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if (buf->extended_data) {
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/* if current buffer is too small, free it */
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if (buf->extended_data[0] && buf_size > buf->audio_data_size) {
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av_free(buf->extended_data[0]);
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if (buf->extended_data != buf->data)
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av_free(&buf->extended_data);
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buf->extended_data = NULL;
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buf->data[0] = NULL;
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}
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/* if number of channels has changed, reset and/or free extended data
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pointers but leave data buffer in buf->data[0] for reuse */
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if (buf->nb_channels != avctx->channels) {
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if (buf->extended_data != buf->data)
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av_free(buf->extended_data);
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buf->extended_data = NULL;
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}
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}
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/* if there is no previous buffer or the previous buffer cannot be used
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as-is, allocate a new buffer and/or rearrange the channel pointers */
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if (!buf->extended_data) {
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if (!buf->data[0]) {
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if (!(buf->data[0] = av_mallocz(buf_size)))
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return AVERROR(ENOMEM);
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buf->audio_data_size = buf_size;
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}
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if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
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avctx->sample_fmt, buf->data[0],
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buf->audio_data_size, 32)))
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return ret;
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if (frame->extended_data == frame->data)
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buf->extended_data = buf->data;
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else
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buf->extended_data = frame->extended_data;
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memcpy(buf->data, frame->data, sizeof(frame->data));
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buf->linesize[0] = frame->linesize[0];
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buf->nb_channels = avctx->channels;
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} else {
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/* copy InternalBuffer info to the AVFrame */
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frame->extended_data = buf->extended_data;
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frame->linesize[0] = buf->linesize[0];
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memcpy(frame->data, buf->data, sizeof(frame->data));
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}
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frame->type = FF_BUFFER_TYPE_INTERNAL;
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if (avctx->pkt) frame->pkt_pts = avctx->pkt->pts;
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else frame->pkt_pts = AV_NOPTS_VALUE;
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frame->reordered_opaque = avctx->reordered_opaque;
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if (avctx->debug & FF_DEBUG_BUFFERS)
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av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p, "
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"internal audio buffer used\n", frame);
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return 0;
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}
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static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
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{
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int i;
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int w= s->width;
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int h= s->height;
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InternalBuffer *buf;
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AVCodecInternal *avci = s->internal;
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if(pic->data[0]!=NULL) {
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av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
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return -1;
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}
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if(avci->buffer_count >= INTERNAL_BUFFER_SIZE) {
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av_log(s, AV_LOG_ERROR, "buffer_count overflow (missing release_buffer?)\n");
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return -1;
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}
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if(av_image_check_size(w, h, 0, s))
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return -1;
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if (!avci->buffer) {
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avci->buffer = av_mallocz((INTERNAL_BUFFER_SIZE+1) *
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sizeof(InternalBuffer));
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}
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buf = &avci->buffer[avci->buffer_count];
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if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
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if(s->active_thread_type&FF_THREAD_FRAME) {
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av_log_missing_feature(s, "Width/height changing with frame threads is", 0);
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return -1;
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}
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for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
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av_freep(&buf->base[i]);
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buf->data[i]= NULL;
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}
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}
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if (!buf->base[0]) {
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int h_chroma_shift, v_chroma_shift;
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int size[4] = {0};
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int tmpsize;
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int unaligned;
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AVPicture picture;
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int stride_align[AV_NUM_DATA_POINTERS];
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const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
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avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
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avcodec_align_dimensions2(s, &w, &h, stride_align);
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if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
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w+= EDGE_WIDTH*2;
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h+= EDGE_WIDTH*2;
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}
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do {
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// NOTE: do not align linesizes individually, this breaks e.g. assumptions
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// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
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av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
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// increase alignment of w for next try (rhs gives the lowest bit set in w)
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w += w & ~(w-1);
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unaligned = 0;
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for (i=0; i<4; i++){
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unaligned |= picture.linesize[i] % stride_align[i];
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}
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} while (unaligned);
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tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
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if (tmpsize < 0)
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return -1;
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for (i=0; i<3 && picture.data[i+1]; i++)
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size[i] = picture.data[i+1] - picture.data[i];
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size[i] = tmpsize - (picture.data[i] - picture.data[0]);
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memset(buf->base, 0, sizeof(buf->base));
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memset(buf->data, 0, sizeof(buf->data));
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for(i=0; i<4 && size[i]; i++){
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const int h_shift= i==0 ? 0 : h_chroma_shift;
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const int v_shift= i==0 ? 0 : v_chroma_shift;
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buf->linesize[i]= picture.linesize[i];
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buf->base[i]= av_malloc(size[i]+16); //FIXME 16
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if(buf->base[i]==NULL) return -1;
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memset(buf->base[i], 128, size[i]);
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// no edge if EDGE EMU or not planar YUV
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if((s->flags&CODEC_FLAG_EMU_EDGE) || !size[2])
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buf->data[i] = buf->base[i];
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else
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buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (pixel_size*EDGE_WIDTH>>h_shift), stride_align[i]);
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}
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for (; i < AV_NUM_DATA_POINTERS; i++) {
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buf->base[i] = buf->data[i] = NULL;
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buf->linesize[i] = 0;
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}
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if(size[1] && !size[2])
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ff_set_systematic_pal2((uint32_t*)buf->data[1], s->pix_fmt);
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buf->width = s->width;
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buf->height = s->height;
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buf->pix_fmt= s->pix_fmt;
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}
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pic->type= FF_BUFFER_TYPE_INTERNAL;
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for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
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pic->base[i]= buf->base[i];
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pic->data[i]= buf->data[i];
|
|
pic->linesize[i]= buf->linesize[i];
|
|
}
|
|
pic->extended_data = pic->data;
|
|
avci->buffer_count++;
|
|
|
|
if(s->pkt) pic->pkt_pts= s->pkt->pts;
|
|
else pic->pkt_pts= AV_NOPTS_VALUE;
|
|
pic->reordered_opaque= s->reordered_opaque;
|
|
|
|
if(s->debug&FF_DEBUG_BUFFERS)
|
|
av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d "
|
|
"buffers used\n", pic, avci->buffer_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
return video_get_buffer(avctx, frame);
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
return audio_get_buffer(avctx, frame);
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
|
|
int i;
|
|
InternalBuffer *buf, *last;
|
|
AVCodecInternal *avci = s->internal;
|
|
|
|
assert(s->codec_type == AVMEDIA_TYPE_VIDEO);
|
|
|
|
assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
|
|
assert(avci->buffer_count);
|
|
|
|
if (avci->buffer) {
|
|
buf = NULL; /* avoids warning */
|
|
for (i = 0; i < avci->buffer_count; i++) { //just 3-5 checks so is not worth to optimize
|
|
buf = &avci->buffer[i];
|
|
if (buf->data[0] == pic->data[0])
|
|
break;
|
|
}
|
|
assert(i < avci->buffer_count);
|
|
avci->buffer_count--;
|
|
last = &avci->buffer[avci->buffer_count];
|
|
|
|
if (buf != last)
|
|
FFSWAP(InternalBuffer, *buf, *last);
|
|
}
|
|
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
|
|
pic->data[i]=NULL;
|
|
// pic->base[i]=NULL;
|
|
}
|
|
//printf("R%X\n", pic->opaque);
|
|
|
|
if(s->debug&FF_DEBUG_BUFFERS)
|
|
av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "
|
|
"buffers used\n", pic, avci->buffer_count);
|
|
}
|
|
|
|
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
|
|
AVFrame temp_pic;
|
|
int i;
|
|
|
|
assert(s->codec_type == AVMEDIA_TYPE_VIDEO);
|
|
|
|
/* If no picture return a new buffer */
|
|
if(pic->data[0] == NULL) {
|
|
/* We will copy from buffer, so must be readable */
|
|
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
|
|
return s->get_buffer(s, pic);
|
|
}
|
|
|
|
/* If internal buffer type return the same buffer */
|
|
if(pic->type == FF_BUFFER_TYPE_INTERNAL) {
|
|
if(s->pkt) pic->pkt_pts= s->pkt->pts;
|
|
else pic->pkt_pts= AV_NOPTS_VALUE;
|
|
pic->reordered_opaque= s->reordered_opaque;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Not internal type and reget_buffer not overridden, emulate cr buffer
|
|
*/
|
|
temp_pic = *pic;
|
|
for(i = 0; i < AV_NUM_DATA_POINTERS; i++)
|
|
pic->data[i] = pic->base[i] = NULL;
|
|
pic->opaque = NULL;
|
|
/* Allocate new frame */
|
|
if (s->get_buffer(s, pic))
|
|
return -1;
|
|
/* Copy image data from old buffer to new buffer */
|
|
av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
|
|
s->height);
|
|
s->release_buffer(s, &temp_pic); // Release old frame
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
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;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat *fmt){
|
|
while (*fmt != PIX_FMT_NONE && ff_is_hwaccel_pix_fmt(*fmt))
|
|
++fmt;
|
|
return fmt[0];
|
|
}
|
|
|
|
void avcodec_get_frame_defaults(AVFrame *pic){
|
|
memset(pic, 0, sizeof(AVFrame));
|
|
|
|
pic->pts= AV_NOPTS_VALUE;
|
|
pic->key_frame= 1;
|
|
pic->sample_aspect_ratio = (AVRational){0, 1};
|
|
pic->format = -1; /* unknown */
|
|
}
|
|
|
|
AVFrame *avcodec_alloc_frame(void){
|
|
AVFrame *pic= av_malloc(sizeof(AVFrame));
|
|
|
|
if(pic==NULL) return NULL;
|
|
|
|
avcodec_get_frame_defaults(pic);
|
|
|
|
return pic;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
AVDictionary *tmp = NULL;
|
|
|
|
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);
|
|
|
|
/* If there is a user-supplied mutex locking routine, call it. */
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
|
|
entangled_thread_counter++;
|
|
if(entangled_thread_counter != 1){
|
|
av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
|
|
ret = -1;
|
|
goto end;
|
|
}
|
|
|
|
avctx->internal = av_mallocz(sizeof(AVCodecInternal));
|
|
if (!avctx->internal) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
|
|
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) {
|
|
*(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->coded_width && avctx->coded_height)
|
|
avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
|
|
else if(avctx->width && avctx->height)
|
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height);
|
|
|
|
if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
|
|
&& ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
|
|
|| av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
|
|
av_log(avctx, AV_LOG_WARNING, "ignoring invalid width/height values\n");
|
|
avcodec_set_dimensions(avctx, 0, 0);
|
|
}
|
|
|
|
/* if the decoder init function was already called previously,
|
|
free the already allocated subtitle_header before overwriting it */
|
|
if (codec_is_decoder(codec))
|
|
av_freep(&avctx->subtitle_header);
|
|
|
|
#define SANE_NB_CHANNELS 128U
|
|
if (avctx->channels > 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 == 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;
|
|
|
|
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 && !avctx->thread_opaque) {
|
|
ret = ff_thread_init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
|
|
avctx->thread_count = 1;
|
|
|
|
if (avctx->codec->max_lowres < avctx->lowres) {
|
|
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
|
|
avctx->codec->max_lowres);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
if (codec_is_encoder(avctx->codec)) {
|
|
int i;
|
|
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->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample_fmt is not supported.\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->codec->pix_fmts) {
|
|
for (i = 0; avctx->codec->pix_fmts[i] != PIX_FMT_NONE; i++)
|
|
if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
|
|
break;
|
|
if (avctx->codec->pix_fmts[i] == PIX_FMT_NONE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified pix_fmt is not supported\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
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 is not supported\n");
|
|
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) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified channel_layout is not supported\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
}
|
|
if (avctx->channel_layout && avctx->channels) {
|
|
if (av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels) {
|
|
av_log(avctx, AV_LOG_ERROR, "channel layout does not match number of channels\n");
|
|
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->codec->init && !(avctx->active_thread_type&FF_THREAD_FRAME)){
|
|
ret = avctx->codec->init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
end:
|
|
entangled_thread_counter--;
|
|
|
|
/* Release any user-supplied mutex. */
|
|
if (ff_lockmgr_cb) {
|
|
(*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
|
|
}
|
|
if (options) {
|
|
av_dict_free(options);
|
|
*options = tmp;
|
|
}
|
|
|
|
return ret;
|
|
free_and_end:
|
|
av_dict_free(&tmp);
|
|
av_freep(&avctx->priv_data);
|
|
av_freep(&avctx->internal);
|
|
avctx->codec= NULL;
|
|
goto end;
|
|
}
|
|
|
|
int ff_alloc_packet(AVPacket *avpkt, int size)
|
|
{
|
|
if (size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
|
|
return AVERROR(EINVAL);
|
|
|
|
if (avpkt->data) {
|
|
uint8_t *pkt_data;
|
|
|
|
if (avpkt->size < size)
|
|
return AVERROR(EINVAL);
|
|
|
|
pkt_data = avpkt->data;
|
|
av_init_packet(avpkt);
|
|
avpkt->data = pkt_data;
|
|
avpkt->size = size;
|
|
return 0;
|
|
} else {
|
|
return av_new_packet(avpkt, size);
|
|
}
|
|
}
|
|
|
|
int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
|
|
AVPacket *avpkt,
|
|
const AVFrame *frame,
|
|
int *got_packet_ptr)
|
|
{
|
|
int ret;
|
|
int user_packet = !!avpkt->data;
|
|
int nb_samples;
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
|
|
av_init_packet(avpkt);
|
|
avpkt->size = 0;
|
|
return 0;
|
|
}
|
|
|
|
/* check for valid frame size */
|
|
if (frame) {
|
|
nb_samples = frame->nb_samples;
|
|
if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
|
|
if (nb_samples > avctx->frame_size)
|
|
return AVERROR(EINVAL);
|
|
} else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
|
|
if (nb_samples != avctx->frame_size)
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
nb_samples = avctx->frame_size;
|
|
}
|
|
|
|
if (avctx->codec->encode2) {
|
|
*got_packet_ptr = 0;
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
|
|
if (!ret && *got_packet_ptr) {
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
|
|
if (avpkt->pts == AV_NOPTS_VALUE)
|
|
avpkt->pts = frame->pts;
|
|
if (!avpkt->duration)
|
|
avpkt->duration = ff_samples_to_time_base(avctx,
|
|
frame->nb_samples);
|
|
}
|
|
avpkt->dts = avpkt->pts;
|
|
} else {
|
|
avpkt->size = 0;
|
|
}
|
|
} else {
|
|
/* for compatibility with encoders not supporting encode2(), we need to
|
|
allocate a packet buffer if the user has not provided one or check
|
|
the size otherwise */
|
|
int fs_tmp = 0;
|
|
int buf_size = avpkt->size;
|
|
if (!user_packet) {
|
|
if (avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE) {
|
|
av_assert0(av_get_bits_per_sample(avctx->codec_id) != 0);
|
|
buf_size = nb_samples * avctx->channels *
|
|
av_get_bits_per_sample(avctx->codec_id) / 8;
|
|
} else {
|
|
/* this is a guess as to the required size.
|
|
if an encoder needs more than this, it should probably
|
|
implement encode2() */
|
|
buf_size = 2 * avctx->frame_size * avctx->channels *
|
|
av_get_bytes_per_sample(avctx->sample_fmt);
|
|
buf_size += FF_MIN_BUFFER_SIZE;
|
|
}
|
|
}
|
|
if ((ret = ff_alloc_packet(avpkt, buf_size)))
|
|
return ret;
|
|
|
|
/* Encoders using AVCodec.encode() that support
|
|
CODEC_CAP_SMALL_LAST_FRAME require avctx->frame_size to be set to
|
|
the smaller size when encoding the last frame.
|
|
This code can be removed once all encoders supporting
|
|
CODEC_CAP_SMALL_LAST_FRAME use encode2() */
|
|
if ((avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) &&
|
|
nb_samples < avctx->frame_size) {
|
|
fs_tmp = avctx->frame_size;
|
|
avctx->frame_size = nb_samples;
|
|
}
|
|
|
|
/* encode the frame */
|
|
ret = avctx->codec->encode(avctx, avpkt->data, avpkt->size,
|
|
frame ? frame->data[0] : NULL);
|
|
if (ret >= 0) {
|
|
if (!ret) {
|
|
/* no output. if the packet data was allocated by libavcodec,
|
|
free it */
|
|
if (!user_packet)
|
|
av_freep(&avpkt->data);
|
|
} else {
|
|
if (avctx->coded_frame)
|
|
avpkt->pts = avpkt->dts = avctx->coded_frame->pts;
|
|
/* Set duration for final small packet. This can be removed
|
|
once all encoders supporting CODEC_CAP_SMALL_LAST_FRAME use
|
|
encode2() */
|
|
if (fs_tmp) {
|
|
avpkt->duration = ff_samples_to_time_base(avctx,
|
|
avctx->frame_size);
|
|
}
|
|
}
|
|
avpkt->size = ret;
|
|
*got_packet_ptr = (ret > 0);
|
|
ret = 0;
|
|
}
|
|
|
|
if (fs_tmp)
|
|
avctx->frame_size = fs_tmp;
|
|
}
|
|
if (!ret)
|
|
avctx->frame_number++;
|
|
|
|
/* NOTE: if we add any audio encoders which output non-keyframe packets,
|
|
this needs to be moved to the encoders, but for now we can do it
|
|
here to simplify things */
|
|
avpkt->flags |= AV_PKT_FLAG_KEY;
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if FF_API_OLD_DECODE_AUDIO
|
|
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
|
|
uint8_t *buf, int buf_size,
|
|
const short *samples)
|
|
{
|
|
AVPacket pkt;
|
|
AVFrame frame0;
|
|
AVFrame *frame;
|
|
int ret, samples_size, got_packet;
|
|
|
|
av_init_packet(&pkt);
|
|
pkt.data = buf;
|
|
pkt.size = buf_size;
|
|
|
|
if (samples) {
|
|
frame = &frame0;
|
|
avcodec_get_frame_defaults(frame);
|
|
|
|
if (avctx->frame_size) {
|
|
frame->nb_samples = avctx->frame_size;
|
|
} else {
|
|
/* if frame_size is not set, the number of samples must be
|
|
calculated from the buffer size */
|
|
int64_t nb_samples;
|
|
if (!av_get_bits_per_sample(avctx->codec_id)) {
|
|
av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
|
|
"support this codec\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
nb_samples = (int64_t)buf_size * 8 /
|
|
(av_get_bits_per_sample(avctx->codec_id) *
|
|
avctx->channels);
|
|
if (nb_samples >= INT_MAX)
|
|
return AVERROR(EINVAL);
|
|
frame->nb_samples = nb_samples;
|
|
}
|
|
|
|
/* it is assumed that the samples buffer is large enough based on the
|
|
relevant parameters */
|
|
samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
|
|
frame->nb_samples,
|
|
avctx->sample_fmt, 1);
|
|
if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
|
|
avctx->sample_fmt,
|
|
samples, samples_size, 1)))
|
|
return ret;
|
|
|
|
/* fabricate frame pts from sample count.
|
|
this is needed because the avcodec_encode_audio() API does not have
|
|
a way for the user to provide pts */
|
|
frame->pts = ff_samples_to_time_base(avctx,
|
|
avctx->internal->sample_count);
|
|
avctx->internal->sample_count += frame->nb_samples;
|
|
} else {
|
|
frame = NULL;
|
|
}
|
|
|
|
got_packet = 0;
|
|
ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
|
|
if (!ret && got_packet && avctx->coded_frame) {
|
|
avctx->coded_frame->pts = pkt.pts;
|
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
|
|
}
|
|
/* free any side data since we cannot return it */
|
|
if (pkt.side_data_elems > 0) {
|
|
int i;
|
|
for (i = 0; i < pkt.side_data_elems; i++)
|
|
av_free(pkt.side_data[i].data);
|
|
av_freep(&pkt.side_data);
|
|
pkt.side_data_elems = 0;
|
|
}
|
|
|
|
if (frame && frame->extended_data != frame->data)
|
|
av_free(frame->extended_data);
|
|
|
|
return ret ? ret : pkt.size;
|
|
}
|
|
#endif
|
|
|
|
#if FF_API_OLD_ENCODE_VIDEO
|
|
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVFrame *pict)
|
|
{
|
|
AVPacket pkt;
|
|
int ret, got_packet = 0;
|
|
|
|
if(buf_size < FF_MIN_BUFFER_SIZE){
|
|
av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
|
|
return -1;
|
|
}
|
|
|
|
av_init_packet(&pkt);
|
|
pkt.data = buf;
|
|
pkt.size = buf_size;
|
|
|
|
ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
|
|
if (!ret && got_packet && avctx->coded_frame) {
|
|
avctx->coded_frame->pts = pkt.pts;
|
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
|
|
}
|
|
|
|
/* free any side data since we cannot return it */
|
|
if (pkt.side_data_elems > 0) {
|
|
int i;
|
|
for (i = 0; i < pkt.side_data_elems; i++)
|
|
av_free(pkt.side_data[i].data);
|
|
av_freep(&pkt.side_data);
|
|
pkt.side_data_elems = 0;
|
|
}
|
|
|
|
return ret ? ret : pkt.size;
|
|
}
|
|
#endif
|
|
|
|
#define MAX_CODED_FRAME_SIZE(width, height)\
|
|
(8*(width)*(height) + FF_MIN_BUFFER_SIZE)
|
|
|
|
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
|
|
AVPacket *avpkt,
|
|
const AVFrame *frame,
|
|
int *got_packet_ptr)
|
|
{
|
|
int ret;
|
|
int user_packet = !!avpkt->data;
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
|
|
av_init_packet(avpkt);
|
|
avpkt->size = 0;
|
|
*got_packet_ptr = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
|
|
return AVERROR(EINVAL);
|
|
|
|
if (avctx->codec->encode2) {
|
|
*got_packet_ptr = 0;
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
|
|
if (!ret) {
|
|
if (!*got_packet_ptr)
|
|
avpkt->size = 0;
|
|
else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
|
|
avpkt->pts = avpkt->dts = frame->pts;
|
|
}
|
|
} else {
|
|
/* for compatibility with encoders not supporting encode2(), we need to
|
|
allocate a packet buffer if the user has not provided one or check
|
|
the size otherwise */
|
|
int buf_size = avpkt->size;
|
|
|
|
if (!user_packet)
|
|
buf_size = MAX_CODED_FRAME_SIZE(avctx->width, avctx->height);
|
|
|
|
if ((ret = ff_alloc_packet(avpkt, buf_size)))
|
|
return ret;
|
|
|
|
/* encode the frame */
|
|
ret = avctx->codec->encode(avctx, avpkt->data, avpkt->size, frame);
|
|
if (ret >= 0) {
|
|
if (!ret) {
|
|
/* no output. if the packet data was allocated by libavcodec,
|
|
free it */
|
|
if (!user_packet)
|
|
av_freep(&avpkt->data);
|
|
} else if (avctx->coded_frame) {
|
|
avpkt->pts = avctx->coded_frame->pts;
|
|
avpkt->flags |= AV_PKT_FLAG_KEY*avctx->coded_frame->key_frame;
|
|
}
|
|
|
|
avpkt->size = ret;
|
|
*got_packet_ptr = (ret > 0);
|
|
ret = 0;
|
|
}
|
|
}
|
|
|
|
if (!ret)
|
|
avctx->frame_number++;
|
|
|
|
emms_c();
|
|
return ret;
|
|
}
|
|
|
|
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVSubtitle *sub)
|
|
{
|
|
int ret;
|
|
if(sub->start_display_time) {
|
|
av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
|
|
return -1;
|
|
}
|
|
if(sub->num_rects == 0 || !sub->rects)
|
|
return -1;
|
|
ret = avctx->codec->encode(avctx, buf, buf_size, sub);
|
|
avctx->frame_number++;
|
|
return ret;
|
|
}
|
|
|
|
static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
|
|
{
|
|
int size = 0;
|
|
const uint8_t *data;
|
|
uint32_t flags;
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
|
|
return;
|
|
|
|
data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
|
|
if (!data || size < 4)
|
|
return;
|
|
flags = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
if (size < 4) /* Required for any of the changes */
|
|
return;
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
|
|
avctx->channels = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
}
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
|
|
if (size < 8)
|
|
return;
|
|
avctx->channel_layout = bytestream_get_le64(&data);
|
|
size -= 8;
|
|
}
|
|
if (size < 4)
|
|
return;
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
|
|
avctx->sample_rate = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
}
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
|
|
if (size < 8)
|
|
return;
|
|
avctx->width = bytestream_get_le32(&data);
|
|
avctx->height = bytestream_get_le32(&data);
|
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height);
|
|
size -= 8;
|
|
}
|
|
}
|
|
|
|
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
|
|
int *got_picture_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
int ret;
|
|
|
|
*got_picture_ptr= 0;
|
|
if((avctx->coded_width||avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
|
|
return -1;
|
|
|
|
avctx->pkt = avpkt;
|
|
apply_param_change(avctx, avpkt);
|
|
|
|
if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
|
|
if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
|
|
ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
|
|
avpkt);
|
|
else {
|
|
ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
|
|
avpkt);
|
|
picture->pkt_dts= avpkt->dts;
|
|
picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
|
|
picture->width = avctx->width;
|
|
picture->height = avctx->height;
|
|
picture->format = avctx->pix_fmt;
|
|
}
|
|
|
|
emms_c(); //needed to avoid an emms_c() call before every return;
|
|
|
|
if (*got_picture_ptr)
|
|
avctx->frame_number++;
|
|
}else
|
|
ret= 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if FF_API_OLD_DECODE_AUDIO
|
|
int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
|
|
int *frame_size_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
AVFrame frame;
|
|
int ret, got_frame = 0;
|
|
|
|
if (avctx->get_buffer != avcodec_default_get_buffer) {
|
|
av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
|
|
"avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
|
|
av_log(avctx, AV_LOG_ERROR, "Please port your application to "
|
|
"avcodec_decode_audio4()\n");
|
|
avctx->get_buffer = avcodec_default_get_buffer;
|
|
}
|
|
|
|
ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt);
|
|
|
|
if (ret >= 0 && got_frame) {
|
|
int ch, plane_size;
|
|
int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
|
|
int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
|
|
frame.nb_samples,
|
|
avctx->sample_fmt, 1);
|
|
if (*frame_size_ptr < data_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
|
|
"the current frame (%d < %d)\n", *frame_size_ptr, data_size);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
memcpy(samples, frame.extended_data[0], plane_size);
|
|
|
|
if (planar && avctx->channels > 1) {
|
|
uint8_t *out = ((uint8_t *)samples) + plane_size;
|
|
for (ch = 1; ch < avctx->channels; ch++) {
|
|
memcpy(out, frame.extended_data[ch], plane_size);
|
|
out += plane_size;
|
|
}
|
|
}
|
|
*frame_size_ptr = data_size;
|
|
} else {
|
|
*frame_size_ptr = 0;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
|
|
AVFrame *frame,
|
|
int *got_frame_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
int ret = 0;
|
|
|
|
*got_frame_ptr = 0;
|
|
|
|
avctx->pkt = avpkt;
|
|
|
|
if (!avpkt->data && avpkt->size) {
|
|
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
apply_param_change(avctx, avpkt);
|
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
|
|
ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt);
|
|
if (ret >= 0 && *got_frame_ptr) {
|
|
avctx->frame_number++;
|
|
frame->pkt_dts = avpkt->dts;
|
|
if (frame->format == AV_SAMPLE_FMT_NONE)
|
|
frame->format = avctx->sample_fmt;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
|
|
int *got_sub_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
int ret;
|
|
|
|
avctx->pkt = avpkt;
|
|
*got_sub_ptr = 0;
|
|
ret = avctx->codec->decode(avctx, sub, got_sub_ptr, avpkt);
|
|
if (*got_sub_ptr)
|
|
avctx->frame_number++;
|
|
return ret;
|
|
}
|
|
|
|
void avsubtitle_free(AVSubtitle *sub)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sub->num_rects; i++)
|
|
{
|
|
av_freep(&sub->rects[i]->pict.data[0]);
|
|
av_freep(&sub->rects[i]->pict.data[1]);
|
|
av_freep(&sub->rects[i]->pict.data[2]);
|
|
av_freep(&sub->rects[i]->pict.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)
|
|
{
|
|
/* If there is a user-supplied mutex locking routine, call it. */
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
|
|
entangled_thread_counter++;
|
|
if(entangled_thread_counter != 1){
|
|
av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
|
|
entangled_thread_counter--;
|
|
return -1;
|
|
}
|
|
|
|
if (avcodec_is_open(avctx)) {
|
|
if (HAVE_THREADS && avctx->thread_opaque)
|
|
ff_thread_free(avctx);
|
|
if (avctx->codec && avctx->codec->close)
|
|
avctx->codec->close(avctx);
|
|
avcodec_default_free_buffers(avctx);
|
|
avctx->coded_frame = NULL;
|
|
av_freep(&avctx->internal);
|
|
}
|
|
|
|
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 (codec_is_encoder(avctx->codec))
|
|
av_freep(&avctx->extradata);
|
|
avctx->codec = NULL;
|
|
avctx->active_thread_type = 0;
|
|
entangled_thread_counter--;
|
|
|
|
/* Release any user-supplied mutex. */
|
|
if (ff_lockmgr_cb) {
|
|
(*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
AVCodec *avcodec_find_encoder(enum CodecID id)
|
|
{
|
|
AVCodec *p, *experimental=NULL;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (codec_is_encoder(p) && p->id == id) {
|
|
if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
|
|
experimental = p;
|
|
} else
|
|
return p;
|
|
}
|
|
p = p->next;
|
|
}
|
|
return experimental;
|
|
}
|
|
|
|
AVCodec *avcodec_find_encoder_by_name(const char *name)
|
|
{
|
|
AVCodec *p;
|
|
if (!name)
|
|
return NULL;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (codec_is_encoder(p) && strcmp(name,p->name) == 0)
|
|
return p;
|
|
p = p->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
AVCodec *avcodec_find_decoder(enum CodecID id)
|
|
{
|
|
AVCodec *p;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (codec_is_decoder(p) && p->id == id)
|
|
return p;
|
|
p = p->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name)
|
|
{
|
|
AVCodec *p;
|
|
if (!name)
|
|
return NULL;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (codec_is_decoder(p) && strcmp(name,p->name) == 0)
|
|
return p;
|
|
p = p->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int get_bit_rate(AVCodecContext *ctx)
|
|
{
|
|
int 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 * ctx->channels * bits_per_sample : ctx->bit_rate;
|
|
break;
|
|
default:
|
|
bit_rate = 0;
|
|
break;
|
|
}
|
|
return bit_rate;
|
|
}
|
|
|
|
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
|
|
{
|
|
int i, len, ret = 0;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
len = snprintf(buf, buf_size,
|
|
isprint(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_name;
|
|
const char *profile = NULL;
|
|
AVCodec *p;
|
|
char buf1[32];
|
|
int bitrate;
|
|
AVRational display_aspect_ratio;
|
|
|
|
if (encode)
|
|
p = avcodec_find_encoder(enc->codec_id);
|
|
else
|
|
p = avcodec_find_decoder(enc->codec_id);
|
|
|
|
if (p) {
|
|
codec_name = p->name;
|
|
profile = av_get_profile_name(p, enc->profile);
|
|
} else if (enc->codec_id == CODEC_ID_MPEG2TS) {
|
|
/* fake mpeg2 transport stream codec (currently not
|
|
registered) */
|
|
codec_name = "mpeg2ts";
|
|
} else if (enc->codec_name[0] != '\0') {
|
|
codec_name = enc->codec_name;
|
|
} else {
|
|
/* output avi tags */
|
|
char tag_buf[32];
|
|
av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
|
|
snprintf(buf1, sizeof(buf1), "%s / 0x%04X", tag_buf, enc->codec_tag);
|
|
codec_name = buf1;
|
|
}
|
|
|
|
switch(enc->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
snprintf(buf, buf_size,
|
|
"Video: %s%s",
|
|
codec_name, enc->mb_decision ? " (hq)" : "");
|
|
if (profile)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%s)", profile);
|
|
if (enc->pix_fmt != PIX_FMT_NONE) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %s",
|
|
av_get_pix_fmt_name(enc->pix_fmt));
|
|
}
|
|
if (enc->width) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %dx%d",
|
|
enc->width, enc->height);
|
|
if (enc->sample_aspect_ratio.num) {
|
|
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
|
|
enc->width*enc->sample_aspect_ratio.num,
|
|
enc->height*enc->sample_aspect_ratio.den,
|
|
1024*1024);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" [PAR %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);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
snprintf(buf, buf_size,
|
|
"Audio: %s",
|
|
codec_name);
|
|
if (profile)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%s)", profile);
|
|
if (enc->sample_rate) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d Hz", enc->sample_rate);
|
|
}
|
|
av_strlcat(buf, ", ", buf_size);
|
|
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));
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_DATA:
|
|
snprintf(buf, buf_size, "Data: %s", codec_name);
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
snprintf(buf, buf_size, "Subtitle: %s", codec_name);
|
|
break;
|
|
case AVMEDIA_TYPE_ATTACHMENT:
|
|
snprintf(buf, buf_size, "Attachment: %s", codec_name);
|
|
break;
|
|
default:
|
|
snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
|
|
return;
|
|
}
|
|
if (encode) {
|
|
if (enc->flags & CODEC_FLAG_PASS1)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", pass 1");
|
|
if (enc->flags & 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),
|
|
", %d kb/s", bitrate / 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;
|
|
}
|
|
|
|
unsigned avcodec_version( void )
|
|
{
|
|
return LIBAVCODEC_VERSION_INT;
|
|
}
|
|
|
|
const char *avcodec_configuration(void)
|
|
{
|
|
return LIBAV_CONFIGURATION;
|
|
}
|
|
|
|
const char *avcodec_license(void)
|
|
{
|
|
#define LICENSE_PREFIX "libavcodec license: "
|
|
return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
|
|
}
|
|
|
|
void avcodec_flush_buffers(AVCodecContext *avctx)
|
|
{
|
|
if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
|
|
ff_thread_flush(avctx);
|
|
else if(avctx->codec->flush)
|
|
avctx->codec->flush(avctx);
|
|
}
|
|
|
|
static void video_free_buffers(AVCodecContext *s)
|
|
{
|
|
AVCodecInternal *avci = s->internal;
|
|
int i, j;
|
|
|
|
if (!avci->buffer)
|
|
return;
|
|
|
|
if (avci->buffer_count)
|
|
av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n",
|
|
avci->buffer_count);
|
|
for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
|
|
InternalBuffer *buf = &avci->buffer[i];
|
|
for(j=0; j<4; j++){
|
|
av_freep(&buf->base[j]);
|
|
buf->data[j]= NULL;
|
|
}
|
|
}
|
|
av_freep(&avci->buffer);
|
|
|
|
avci->buffer_count=0;
|
|
}
|
|
|
|
static void audio_free_buffers(AVCodecContext *avctx)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
InternalBuffer *buf;
|
|
|
|
if (!avci->buffer)
|
|
return;
|
|
buf = avci->buffer;
|
|
|
|
if (buf->extended_data) {
|
|
av_free(buf->extended_data[0]);
|
|
if (buf->extended_data != buf->data)
|
|
av_free(buf->extended_data);
|
|
}
|
|
av_freep(&avci->buffer);
|
|
}
|
|
|
|
void avcodec_default_free_buffers(AVCodecContext *avctx)
|
|
{
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
video_free_buffers(avctx);
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
audio_free_buffers(avctx);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
int av_get_bits_per_sample(enum CodecID codec_id){
|
|
switch(codec_id){
|
|
case CODEC_ID_ADPCM_SBPRO_2:
|
|
return 2;
|
|
case CODEC_ID_ADPCM_SBPRO_3:
|
|
return 3;
|
|
case CODEC_ID_ADPCM_SBPRO_4:
|
|
case CODEC_ID_ADPCM_CT:
|
|
case CODEC_ID_ADPCM_IMA_APC:
|
|
case CODEC_ID_ADPCM_IMA_WAV:
|
|
case CODEC_ID_ADPCM_IMA_QT:
|
|
case CODEC_ID_ADPCM_SWF:
|
|
case CODEC_ID_ADPCM_MS:
|
|
case CODEC_ID_ADPCM_YAMAHA:
|
|
case CODEC_ID_ADPCM_G722:
|
|
return 4;
|
|
case CODEC_ID_PCM_ALAW:
|
|
case CODEC_ID_PCM_MULAW:
|
|
case CODEC_ID_PCM_S8:
|
|
case CODEC_ID_PCM_U8:
|
|
case CODEC_ID_PCM_ZORK:
|
|
return 8;
|
|
case CODEC_ID_PCM_S16BE:
|
|
case CODEC_ID_PCM_S16LE:
|
|
case CODEC_ID_PCM_S16LE_PLANAR:
|
|
case CODEC_ID_PCM_U16BE:
|
|
case CODEC_ID_PCM_U16LE:
|
|
return 16;
|
|
case CODEC_ID_PCM_S24DAUD:
|
|
case CODEC_ID_PCM_S24BE:
|
|
case CODEC_ID_PCM_S24LE:
|
|
case CODEC_ID_PCM_U24BE:
|
|
case CODEC_ID_PCM_U24LE:
|
|
return 24;
|
|
case CODEC_ID_PCM_S32BE:
|
|
case CODEC_ID_PCM_S32LE:
|
|
case CODEC_ID_PCM_U32BE:
|
|
case CODEC_ID_PCM_U32LE:
|
|
case CODEC_ID_PCM_F32BE:
|
|
case CODEC_ID_PCM_F32LE:
|
|
return 32;
|
|
case CODEC_ID_PCM_F64BE:
|
|
case CODEC_ID_PCM_F64LE:
|
|
return 64;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
#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;
|
|
}
|
|
|
|
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
|
|
{
|
|
av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your Libav "
|
|
"version to the newest one from Git. If the problem still "
|
|
"occurs, it means that your file has a feature which has not "
|
|
"been implemented.\n", feature);
|
|
if(want_sample)
|
|
av_log_ask_for_sample(avc, NULL);
|
|
}
|
|
|
|
void av_log_ask_for_sample(void *avc, const char *msg, ...)
|
|
{
|
|
va_list argument_list;
|
|
|
|
va_start(argument_list, msg);
|
|
|
|
if (msg)
|
|
av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
|
|
av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
|
|
"of this file to ftp://upload.libav.org/incoming/ "
|
|
"and contact the libav-devel mailing list.\n");
|
|
|
|
va_end(argument_list);
|
|
}
|
|
|
|
static AVHWAccel *first_hwaccel = NULL;
|
|
|
|
void av_register_hwaccel(AVHWAccel *hwaccel)
|
|
{
|
|
AVHWAccel **p = &first_hwaccel;
|
|
while (*p)
|
|
p = &(*p)->next;
|
|
*p = hwaccel;
|
|
hwaccel->next = NULL;
|
|
}
|
|
|
|
AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
|
|
{
|
|
return hwaccel ? hwaccel->next : first_hwaccel;
|
|
}
|
|
|
|
AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt)
|
|
{
|
|
AVHWAccel *hwaccel=NULL;
|
|
|
|
while((hwaccel= av_hwaccel_next(hwaccel))){
|
|
if ( hwaccel->id == codec_id
|
|
&& hwaccel->pix_fmt == pix_fmt)
|
|
return hwaccel;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
|
|
return -1;
|
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
|
|
return -1;
|
|
}
|
|
|
|
ff_lockmgr_cb = cb;
|
|
|
|
if (ff_lockmgr_cb) {
|
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
|
|
return -1;
|
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avpriv_lock_avformat(void)
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avpriv_unlock_avformat(void)
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned int avpriv_toupper4(unsigned int x)
|
|
{
|
|
return toupper( x &0xFF)
|
|
+ (toupper((x>>8 )&0xFF)<<8 )
|
|
+ (toupper((x>>16)&0xFF)<<16)
|
|
+ (toupper((x>>24)&0xFF)<<24);
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
|
|
{
|
|
f->owner = avctx;
|
|
return avctx->get_buffer(avctx, f);
|
|
}
|
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
|
|
{
|
|
f->owner->release_buffer(f->owner, f);
|
|
}
|
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress(AVFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress(AVFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
enum AVMediaType avcodec_get_type(enum CodecID codec_id)
|
|
{
|
|
if (codec_id <= CODEC_ID_NONE)
|
|
return AVMEDIA_TYPE_UNKNOWN;
|
|
else if (codec_id < CODEC_ID_FIRST_AUDIO)
|
|
return AVMEDIA_TYPE_VIDEO;
|
|
else if (codec_id < CODEC_ID_FIRST_SUBTITLE)
|
|
return AVMEDIA_TYPE_AUDIO;
|
|
else if (codec_id < CODEC_ID_FIRST_UNKNOWN)
|
|
return AVMEDIA_TYPE_SUBTITLE;
|
|
|
|
return AVMEDIA_TYPE_UNKNOWN;
|
|
}
|
|
|
|
int avcodec_is_open(AVCodecContext *s)
|
|
{
|
|
return !!s->internal;
|
|
}
|