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d4841687c4
This allows use of libavcodec_common with eg. audio without to need to include all the conversions burden.
242 lines
7.5 KiB
C
242 lines
7.5 KiB
C
/**
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* @file libavcodec_common.h
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* @author Martin Pulec <martin.pulec@cesnet.cz>
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*/
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/*
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* Copyright (c) 2013-2022 CESNET, z. s. p. o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBAVCODEC_COMMON_H_
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#define LIBAVCODEC_COMMON_H_
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#include "debug.h"
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#include "types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libavcodec/avcodec.h>
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#include <libavutil/imgutils.h>
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#include <libavutil/mem.h>
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#include <libavutil/opt.h>
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#include <libavutil/pixfmt.h>
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#include <libavutil/version.h>
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#ifdef __cplusplus
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}
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#endif
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// component indices to rgb_shift[] (@ref av_to_uv_convert)
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#define R 0
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#define G 1
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#define B 2
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#define LIBAV_ERRBUF_LEN 1024
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///
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/// compat
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///
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// avcodec
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#ifndef AV_CODEC_CAP_FRAME_THREADS
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#define AV_CODEC_CAP_FRAME_THREADS CODEC_CAP_FRAME_THREADS
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#endif
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#ifndef AV_CODEC_CAP_SLICE_THREADS
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#define AV_CODEC_CAP_SLICE_THREADS CODEC_CAP_SLICE_THREADS
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#endif
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#ifndef AV_CODEC_CAP_VARIABLE_FRAME_SIZE
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#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE CODEC_CAP_VARIABLE_FRAME_SIZE
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#endif
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#ifndef AV_CODEC_FLAG2_FAST
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#define AV_CODEC_FLAG2_FAST CODEC_FLAG2_FAST
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#endif
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#ifndef AV_INPUT_BUFFER_PADDING_SIZE
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#define AV_INPUT_BUFFER_PADDING_SIZE FF_INPUT_BUFFER_PADDING_SIZE
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#endif
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#if LIBAVCODEC_VERSION_INT <= AV_VERSION_INT(54, 24, 0)
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#define AV_CODEC_ID_H264 CODEC_ID_H264
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#define AV_CODEC_ID_JPEG2000 CODEC_ID_JPEG2000
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#define AV_CODEC_ID_MJPEG CODEC_ID_MJPEG
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#define AV_CODEC_ID_VP8 CODEC_ID_VP8
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#endif
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// av_frame_* was inbetween moved from lavc to lavu
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#if LIBAVCODEC_VERSION_MAJOR < 55
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#define av_frame_alloc avcodec_alloc_frame
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#define av_frame_free avcodec_free_frame
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#define av_frame_unref avcodec_get_frame_defaults
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#undef av_frame_free
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#define av_frame_free av_free
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#endif
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#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55, 28, 0)
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#define AV_CODEC_ID_VP9 AV_CODEC_ID_NONE
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#endif
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#if LIBAVCODEC_VERSION_INT <= AV_VERSION_INT(55, 35, 100)
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#define AV_CODEC_ID_HEVC AV_CODEC_ID_NONE
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#endif
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#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55, 52, 0)
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#define avcodec_free_context av_freep
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#endif
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#if LIBAVCODEC_VERSION_INT <= AV_VERSION_INT(56, 55, 1)
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#define AV_CODEC_FLAG_INTERLACED_DCT CODEC_FLAG_INTERLACED_DCT
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#endif
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#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 8, 0)
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#define av_packet_unref av_free_packet
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#endif
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#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58, 26, 0)
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#define AV_CODEC_ID_AV1 AV_CODEC_ID_NONE
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#endif
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// avutil
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#if LIBAVUTIL_VERSION_INT < AV_VERSION_INT(51, 42, 0) // FFMPEG commit 78071a1420b
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#define AV_PIX_FMT_NONE PIX_FMT_NONE
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#define AV_PIX_FMT_NV12 PIX_FMT_NV12
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#define AV_PIX_FMT_BGR24 PIX_FMT_BGR24
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#define AV_PIX_FMT_RGB24 PIX_FMT_RGB24
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#define AV_PIX_FMT_RGBA PIX_FMT_RGBA
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#define AV_PIX_FMT_UYVY422 PIX_FMT_RGBA
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#define AV_PIX_FMT_YUV420P PIX_FMT_YUV420P
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#define AV_PIX_FMT_YUV422P PIX_FMT_YUV422P
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#define AV_PIX_FMT_YUV444P PIX_FMT_YUV444P
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#define AV_PIX_FMT_YUVJ420P PIX_FMT_YUVJ420P
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#define AV_PIX_FMT_YUVJ422P PIX_FMT_YUVJ422P
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#define AV_PIX_FMT_YUVJ444P PIX_FMT_YUVJ444P
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#define AV_PIX_FMT_YUYV422 PIX_FMT_YUYV422
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#define AVPixelFormat PixelFormat
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#define AVCodecID CodecID
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#endif
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#if LIBAVUTIL_VERSION_INT < AV_VERSION_INT(51, 74, 100)
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#define AV_PIX_FMT_GBRP12LE PIX_FMT_GBRP12LE
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#endif
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#if LIBAVUTIL_VERSION_INT > AV_VERSION_INT(57, 9, 101) // FFMPEG commit b2cd1fb2ec6
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#define HAVE_P210 1
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#endif
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#if defined FF_API_OLD_CHANNEL_LAYOUT || (LIBAVUTIL_VERSION_MAJOR >= 58)
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#define AVCODECCTX_CHANNELS(context) (context)->ch_layout.nb_channels
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#define FF_API_NEW_CHANNEL_LAYOUT 1
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#else
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#define AVCODECCTX_CHANNELS(context) (context)->channels
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#endif
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#if LIBAVCODEC_VERSION_INT <= AV_VERSION_INT(57, 8, 0)
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static struct AVPacket *av_packet_alloc(void) ATTRIBUTE(unused);
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static struct AVPacket *av_packet_alloc() {
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struct AVPacket *pkt = (struct AVPacket *) calloc(1, sizeof *pkt);
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if (pkt == NULL) {
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return NULL;
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}
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av_init_packet(pkt);
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return pkt;
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}
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static void av_packet_free(struct AVPacket **pkt) ATTRIBUTE(unused);
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static void av_packet_free(struct AVPacket **pkt) {
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if (pkt == NULL || *pkt == NULL) {
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return;
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}
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free(*pkt);
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*pkt = NULL;
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}
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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static void print_decoder_error(const char *mod_name, int rc) ATTRIBUTE(unused);
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static void print_decoder_error(const char *mod_name, int rc) {
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char buf[1024];
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switch (rc) {
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case 0:
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break;
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case EAGAIN:
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log_msg(LOG_LEVEL_VERBOSE, "%s No frame returned - needs more input data.\n", mod_name);
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break;
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case EINVAL:
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log_msg(LOG_LEVEL_ERROR, "%s Decoder in invalid state!\n", mod_name);
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break;
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default:
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av_strerror(rc, buf, 1024);
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log_msg(LOG_LEVEL_WARNING, "%s Error while decoding frame (rc == %d): %s.\n", mod_name, rc, buf);
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break;
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}
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}
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inline static bool pixfmt_has_420_subsampling(enum AVPixelFormat fmt){
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const AVPixFmtDescriptor *fmt_desc = av_pix_fmt_desc_get(fmt);
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return fmt_desc && (fmt_desc->log2_chroma_w == 1 && fmt_desc->log2_chroma_h == 1);
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}
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/// @retval true if all pixel formats have either 420 subsampling or are HW accelerated
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inline static bool pixfmt_list_has_420_subsampling(const enum AVPixelFormat *fmt){
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for(const enum AVPixelFormat *it = fmt; *it != AV_PIX_FMT_NONE; it++){
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const AVPixFmtDescriptor *fmt_desc = av_pix_fmt_desc_get(*it);
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if (!pixfmt_has_420_subsampling(*it) && !(fmt_desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) {
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return false;
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}
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}
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return true;
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}
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void print_libav_error(int verbosity, const char *msg, int rc);
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bool libav_codec_has_extradata(codec_t codec);
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codec_t get_av_to_ug_codec(enum AVCodecID av_codec);
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enum AVCodecID get_ug_to_av_codec(codec_t ug_codec);
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struct uv_to_av_pixfmt {
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codec_t uv_codec;
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enum AVPixelFormat av_pixfmt;
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};
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codec_t get_av_to_ug_pixfmt(enum AVPixelFormat av_pixfmt) ATTRIBUTE(const);
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enum AVPixelFormat get_ug_to_av_pixfmt(codec_t ug_codec) ATTRIBUTE(const);
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const struct uv_to_av_pixfmt *get_av_to_ug_pixfmts(void) ATTRIBUTE(const);
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void ug_set_av_log_level(void);
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#ifdef __cplusplus
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}
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#endif
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#endif // LIBAVCODEC_COMMON_H_
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