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250 lines
7.3 KiB
250 lines
7.3 KiB
/*****************************************************************************
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* avcommon.h: common code for libav*
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*****************************************************************************
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* Copyright (C) 2012 VLC authors and VideoLAN
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* $Id$
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*
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* Authors: Rafaël Carré <funman@videolanorg>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU 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 License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef AVCOMMON_H
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#define AVCOMMON_H 1
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_avcodec.h>
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#include <vlc_configuration.h>
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#include <vlc_variables.h>
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#include <vlc_es.h>
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#include <limits.h>
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#include "avcommon_compat.h"
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#ifdef HAVE_LIBAVUTIL_AVUTIL_H
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# include <libavutil/avutil.h>
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# include <libavutil/dict.h>
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# include <libavutil/cpu.h>
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# include <libavutil/log.h>
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#if (CLOCK_FREQ == AV_TIME_BASE)
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#define FROM_AV_TS(x) (x)
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#define TO_AV_TS(x) (x)
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#elif (CLOCK_FREQ % AV_TIME_BASE) == 0
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#define FROM_AV_TS(x) ((x) * (CLOCK_FREQ / AV_TIME_BASE))
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#define TO_AV_TS(x) ((x) / (CLOCK_FREQ / AV_TIME_BASE))
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#elif (AV_TIME_BASE % CLOCK_FREQ) == 0
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#define FROM_AV_TS(x) ((x) / (AV_TIME_BASE / CLOCK_FREQ))
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#define TO_AV_TS(x) ((x) * (AV_TIME_BASE / CLOCK_FREQ))
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#else
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#define FROM_AV_TS(x) ((x) * CLOCK_FREQ / AV_TIME_BASE)
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#define TO_AV_TS(x) ((x) * AV_TIME_BASE / CLOCK_FREQ)
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#endif
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#define AV_OPTIONS_TEXT N_("Advanced options")
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#define AV_OPTIONS_LONGTEXT N_("Advanced options, in the form {opt=val,opt2=val2}.")
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static inline void vlc_av_get_options(const char *psz_opts, AVDictionary** pp_dict)
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{
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config_chain_t *cfg = NULL;
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config_ChainParseOptions(&cfg, psz_opts);
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while (cfg) {
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config_chain_t *next = cfg->p_next;
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av_dict_set(pp_dict, cfg->psz_name, cfg->psz_value, 0);
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free(cfg->psz_name);
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free(cfg->psz_value);
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free(cfg);
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cfg = next;
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}
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}
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static inline void vlc_init_avutil(vlc_object_t *obj)
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{
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int level = AV_LOG_QUIET;
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if (!var_InheritBool(obj, "quiet")) {
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int64_t verbose = var_InheritInteger(obj, "verbose");
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if (verbose >= 0) switch(verbose + VLC_MSG_ERR) {
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case VLC_MSG_ERR:
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level = AV_LOG_ERROR;
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break;
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case VLC_MSG_WARN:
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level = AV_LOG_WARNING;
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break;
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case VLC_MSG_INFO:
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level = AV_LOG_INFO;
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break;
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case VLC_MSG_DBG:
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level = AV_LOG_VERBOSE;
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break;
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case VLC_MSG_DBG+1:
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level = AV_LOG_DEBUG;
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default:
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break;
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}
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}
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av_log_set_level(level);
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msg_Dbg(obj, "CPU flags: 0x%08x", av_get_cpu_flags());
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}
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#endif
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#ifdef HAVE_LIBAVFORMAT_AVFORMAT_H
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# include <libavformat/avformat.h>
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static inline void vlc_init_avformat(vlc_object_t *obj)
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{
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vlc_avcodec_lock();
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vlc_init_avutil(obj);
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avformat_network_init();
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av_register_all();
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vlc_avcodec_unlock();
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}
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#endif
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#ifdef HAVE_LIBAVCODEC_AVCODEC_H
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# include <libavcodec/avcodec.h>
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static inline void vlc_init_avcodec(vlc_object_t *obj)
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{
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vlc_avcodec_lock();
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vlc_init_avutil(obj);
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avcodec_register_all();
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vlc_avcodec_unlock();
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}
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#endif
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static inline vlc_rational_t FromAVRational(const AVRational rat)
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{
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return (vlc_rational_t){.num = rat.num, .den = rat.den};
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}
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static inline void set_video_color_settings( const video_format_t *p_fmt, AVCodecContext *p_context )
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{
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switch( p_fmt->color_range )
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{
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case COLOR_RANGE_FULL:
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p_context->color_range = AVCOL_RANGE_JPEG;
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break;
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case COLOR_RANGE_LIMITED:
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p_context->color_range = AVCOL_RANGE_MPEG;
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case COLOR_RANGE_UNDEF: /* do nothing */
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break;
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default:
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p_context->color_range = AVCOL_RANGE_UNSPECIFIED;
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break;
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}
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switch( p_fmt->space )
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{
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case COLOR_SPACE_BT709:
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p_context->colorspace = AVCOL_SPC_BT709;
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break;
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case COLOR_SPACE_BT601:
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p_context->colorspace = AVCOL_SPC_BT470BG;
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break;
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case COLOR_SPACE_BT2020:
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p_context->colorspace = AVCOL_SPC_BT2020_CL;
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break;
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default:
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p_context->colorspace = AVCOL_SPC_UNSPECIFIED;
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break;
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}
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switch( p_fmt->transfer )
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{
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case TRANSFER_FUNC_LINEAR:
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p_context->color_trc = AVCOL_TRC_LINEAR;
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break;
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case TRANSFER_FUNC_SRGB:
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p_context->color_trc = AVCOL_TRC_GAMMA22;
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break;
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case TRANSFER_FUNC_BT470_BG:
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p_context->color_trc = AVCOL_TRC_GAMMA28;
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break;
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case TRANSFER_FUNC_BT470_M:
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p_context->color_trc = AVCOL_TRC_GAMMA22;
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break;
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case TRANSFER_FUNC_BT709:
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p_context->color_trc = AVCOL_TRC_BT709;
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break;
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case TRANSFER_FUNC_SMPTE_ST2084:
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p_context->color_trc = AVCOL_TRC_SMPTEST2084;
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break;
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case TRANSFER_FUNC_SMPTE_240:
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p_context->color_trc = AVCOL_TRC_SMPTE240M;
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break;
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default:
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p_context->color_trc = AVCOL_TRC_UNSPECIFIED;
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break;
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}
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switch( p_fmt->primaries )
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{
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case COLOR_PRIMARIES_BT601_525:
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p_context->color_primaries = AVCOL_PRI_SMPTE170M;
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break;
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case COLOR_PRIMARIES_BT601_625:
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p_context->color_primaries = AVCOL_PRI_BT470BG;
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break;
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case COLOR_PRIMARIES_BT709:
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p_context->color_primaries = AVCOL_PRI_BT709;
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break;
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case COLOR_PRIMARIES_BT2020:
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p_context->color_primaries = AVCOL_PRI_BT2020;
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break;
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case COLOR_PRIMARIES_FCC1953:
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p_context->color_primaries = AVCOL_PRI_BT470M;
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break;
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default:
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p_context->color_primaries = AVCOL_PRI_UNSPECIFIED;
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break;
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}
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switch( p_fmt->chroma_location )
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{
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case CHROMA_LOCATION_LEFT:
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p_context->chroma_sample_location = AVCHROMA_LOC_LEFT;
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break;
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case CHROMA_LOCATION_CENTER:
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p_context->chroma_sample_location = AVCHROMA_LOC_CENTER;
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break;
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case CHROMA_LOCATION_TOP_LEFT:
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p_context->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
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break;
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case CHROMA_LOCATION_TOP_CENTER:
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p_context->chroma_sample_location = AVCHROMA_LOC_TOP;
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break;
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case CHROMA_LOCATION_BOTTOM_LEFT:
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p_context->chroma_sample_location = AVCHROMA_LOC_BOTTOMLEFT;
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break;
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case CHROMA_LOCATION_BOTTOM_CENTER:
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p_context->chroma_sample_location = AVCHROMA_LOC_BOTTOM;
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break;
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default:
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p_context->chroma_sample_location = AVCHROMA_LOC_UNSPECIFIED;
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break;
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}
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}
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#endif
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