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310 lines
12 KiB
310 lines
12 KiB
/*****************************************************************************
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* avcodec.c: video and audio decoder and encoder using libavcodec
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*****************************************************************************
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* Copyright (C) 1999-2008 VLC authors and VideoLAN
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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* Gildas Bazin <gbazin@videolan.org>
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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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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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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_common.h>
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#include <vlc_plugin.h>
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#include <vlc_codec.h>
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#include <vlc_demux.h>
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#include <vlc_avcodec.h>
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#include <vlc_cpu.h>
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#include <libavcodec/avcodec.h>
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#include "avcodec.h"
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#include "chroma.h"
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#include "avcommon.h"
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/****************************************************************************
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* Local prototypes
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****************************************************************************/
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static const int frame_skip_list[] = { -1, 0, 1, 2, 3, 4 };
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static const char *const frame_skip_list_text[] =
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{ N_("None"), N_("Default"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
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static const int idct_skip_list[] = { -1, 0, 1, 2, 3, 4 };
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static const char *const idct_skip_list_text[] =
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{ N_("None"), N_("Default"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
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static const int nloopf_list[] = { 0, 1, 2, 3, 4 };
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static const char *const nloopf_list_text[] =
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{ N_("None"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
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#ifdef ENABLE_SOUT
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static const char *const enc_hq_list[] = { "rd", "bits", "simple" };
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static const char *const enc_hq_list_text[] = {
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N_("rd"), N_("bits"), N_("simple") };
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#endif
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#ifdef MERGE_FFMPEG
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# ifdef HAVE_LIBAVFORMAT_AVFORMAT_H
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# include "../../demux/avformat/avformat.h"
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# endif
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# include "../../access/avio.h"
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# include "../../packetizer/avparser.h"
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#endif
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define MODULE_DESCRIPTION N_( "Various audio and video decoders/encoders " \
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"delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SV1,"\
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"H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs")
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vlc_module_begin ()
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set_shortname( "FFmpeg")
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set_subcategory( SUBCAT_INPUT_VCODEC )
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/* decoder main module */
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set_description( N_("FFmpeg audio/video decoder") )
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set_help( MODULE_DESCRIPTION )
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set_section( N_("Decoding") , NULL )
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add_shortcut("ffmpeg")
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set_capability("video decoder", 70)
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set_callbacks(InitVideoDec, EndVideoDec)
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add_submodule()
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add_shortcut("ffmpeghw")
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set_capability("video decoder", 10001)
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set_callbacks(InitVideoHwDec, EndVideoDec)
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add_submodule()
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add_shortcut("ffmpeg")
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set_capability("audio decoder", 70)
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set_callbacks(InitAudioDec, EndAudioDec)
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add_submodule()
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add_shortcut("ffmpeg")
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set_capability("spu decoder", 70)
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set_callbacks(InitSubtitleDec, EndSubtitleDec)
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add_bool( "avcodec-dr", true, DR_TEXT, NULL )
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add_bool( "avcodec-corrupted", true, CORRUPTED_TEXT, CORRUPTED_LONGTEXT )
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add_integer ( "avcodec-error-resilience", 1, ERROR_TEXT,
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ERROR_LONGTEXT )
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add_obsolete_integer ( "avcodec-workaround-bugs" ) /* removed since 4.0.0 */
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add_bool( "avcodec-hurry-up", true, HURRYUP_TEXT, HURRYUP_LONGTEXT )
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add_integer( "avcodec-skip-frame", 0, SKIP_FRAME_TEXT,
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SKIP_FRAME_LONGTEXT )
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change_integer_list( frame_skip_list, frame_skip_list_text )
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add_integer( "avcodec-skip-idct", 0, SKIP_IDCT_TEXT,
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SKIP_IDCT_LONGTEXT )
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change_integer_list( idct_skip_list, idct_skip_list_text )
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add_obsolete_integer( "avcodec-vismv" ) /* removed since 3.0.0 */
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add_obsolete_bool( "avcodec-fast" ) /* removed since 4.0.0 */
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add_integer ( "avcodec-skiploopfilter", 0, SKIPLOOPF_TEXT,
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SKIPLOOPF_LONGTEXT)
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change_safe ()
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change_integer_list( nloopf_list, nloopf_list_text )
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add_integer( "avcodec-debug", 0, DEBUG_TEXT, DEBUG_LONGTEXT )
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add_string( "avcodec-codec", NULL, CODEC_TEXT, CODEC_LONGTEXT )
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add_obsolete_string( "avcodec-hw" ) /* removed since 4.0.0 */
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add_integer( "avcodec-threads", 0, THREADS_TEXT, THREADS_LONGTEXT )
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add_string( "avcodec-options", NULL, AV_OPTIONS_TEXT, AV_OPTIONS_LONGTEXT )
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#ifdef ENABLE_SOUT
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/* encoder submodule */
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add_submodule ()
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add_shortcut( "ffmpeg" )
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set_section( N_("Encoding") , NULL )
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set_description( N_("FFmpeg video encoder") )
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set_capability( "video encoder", 100 )
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set_callback( InitVideoEnc )
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add_submodule()
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set_description( N_("FFmpeg video encoder") )
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set_capability( "image encoder", 100 )
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set_callback( InitVideoEnc )
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add_submodule()
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add_shortcut( "ffmpeg" )
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set_section( N_("Encoding") , NULL )
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set_description( N_("FFmpeg audio encoder") )
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set_capability( "audio encoder", 100 )
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set_callback( InitVideoEnc )
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add_string( ENC_CFG_PREFIX "codec", NULL, CODEC_TEXT, CODEC_LONGTEXT )
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add_string( ENC_CFG_PREFIX "hq", "rd", ENC_HQ_TEXT,
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ENC_HQ_LONGTEXT )
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change_string_list( enc_hq_list, enc_hq_list_text )
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add_integer( ENC_CFG_PREFIX "keyint", 0, ENC_KEYINT_TEXT,
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ENC_KEYINT_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "bframes", 0, ENC_BFRAMES_TEXT,
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ENC_BFRAMES_LONGTEXT )
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add_bool( ENC_CFG_PREFIX "hurry-up", false, ENC_HURRYUP_TEXT,
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ENC_HURRYUP_LONGTEXT )
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add_bool( ENC_CFG_PREFIX "interlace", false, ENC_INTERLACE_TEXT,
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ENC_INTERLACE_LONGTEXT )
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add_bool( ENC_CFG_PREFIX "interlace-me", true, ENC_INTERLACE_ME_TEXT,
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ENC_INTERLACE_ME_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "vt", 0, ENC_VT_TEXT,
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ENC_VT_LONGTEXT )
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add_bool( ENC_CFG_PREFIX "pre-me", false, ENC_PRE_ME_TEXT,
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ENC_PRE_ME_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "rc-buffer-size", 0,
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ENC_RC_BUF_TEXT, ENC_RC_BUF_LONGTEXT )
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add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0,
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ENC_RC_BUF_AGGR_TEXT, NULL )
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add_float( ENC_CFG_PREFIX "i-quant-factor", 0,
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ENC_IQUANT_FACTOR_TEXT, ENC_IQUANT_FACTOR_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "noise-reduction", 0,
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ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT )
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add_bool( ENC_CFG_PREFIX "mpeg4-matrix", false,
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ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "qmin", 0,
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ENC_QMIN_TEXT, NULL )
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add_integer( ENC_CFG_PREFIX "qmax", 0,
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ENC_QMAX_TEXT, NULL )
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add_bool( ENC_CFG_PREFIX "trellis", false,
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ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT )
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add_float( ENC_CFG_PREFIX "qscale", 3,
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ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "strict", 0,
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ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT )
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change_integer_range( -2, 2 )
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add_float( ENC_CFG_PREFIX "lumi-masking", 0.0,
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ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT )
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add_float( ENC_CFG_PREFIX "dark-masking", 0.0,
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ENC_DARK_MASKING_TEXT, ENC_DARK_MASKING_LONGTEXT )
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add_float( ENC_CFG_PREFIX "p-masking", 0.0,
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ENC_P_MASKING_TEXT, ENC_P_MASKING_LONGTEXT )
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add_float( ENC_CFG_PREFIX "border-masking", 0.0,
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ENC_BORDER_MASKING_TEXT, ENC_BORDER_MASKING_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "luma-elim-threshold", 0,
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ENC_LUMA_ELIM_TEXT, ENC_LUMA_ELIM_LONGTEXT )
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add_integer( ENC_CFG_PREFIX "chroma-elim-threshold", 0,
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ENC_CHROMA_ELIM_TEXT, ENC_CHROMA_ELIM_LONGTEXT )
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/* Audio AAC encoder profile */
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add_string( ENC_CFG_PREFIX "aac-profile", "low",
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ENC_PROFILE_TEXT, ENC_PROFILE_LONGTEXT )
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add_string( ENC_CFG_PREFIX "options", NULL, AV_OPTIONS_TEXT, AV_OPTIONS_LONGTEXT )
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#endif /* ENABLE_SOUT */
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#ifdef MERGE_FFMPEG
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add_submodule ()
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# ifdef HAVE_LIBAVFORMAT_AVFORMAT_H
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# include "../../demux/avformat/avformat.c"
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# endif
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add_submodule ()
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AVIO_MODULE
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add_submodule ()
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AVPARSER_MODULE
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#endif
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vlc_module_end ()
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AVCodecContext *ffmpeg_AllocContext( decoder_t *p_dec,
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const AVCodec **restrict codecp )
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{
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enum AVCodecID i_codec_id;
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const char *psz_namecodec;
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const AVCodec *p_codec = NULL;
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/* *** determine codec type *** */
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if( !GetFfmpegCodec( p_dec->fmt_in, &i_codec_id, &psz_namecodec ) ||
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i_codec_id == AV_CODEC_ID_RAWVIDEO )
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return NULL;
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msg_Dbg( p_dec, "using %s %s", AVPROVIDER(LIBAVCODEC), LIBAVCODEC_IDENT );
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/* Initialization must be done before avcodec_find_decoder() */
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vlc_init_avcodec(VLC_OBJECT(p_dec));
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/* *** ask ffmpeg for a decoder *** */
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char *psz_decoder = var_InheritString( p_dec, "avcodec-codec" );
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if( psz_decoder != NULL )
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{
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p_codec = avcodec_find_decoder_by_name( psz_decoder );
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if( !p_codec )
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msg_Err( p_dec, "Decoder `%s' not found", psz_decoder );
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else if( p_codec->id != i_codec_id )
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{
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msg_Err( p_dec, "Decoder `%s' can't handle %4.4s",
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psz_decoder, (char*)&p_dec->fmt_in->i_codec );
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p_codec = NULL;
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}
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free( psz_decoder );
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}
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if( !p_codec )
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p_codec = avcodec_find_decoder( i_codec_id );
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if( !p_codec )
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{
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msg_Dbg( p_dec, "codec not found (%s)", psz_namecodec );
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return NULL;
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}
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*codecp = p_codec;
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/* *** get a p_context *** */
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AVCodecContext *avctx = avcodec_alloc_context3(p_codec);
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if( unlikely(avctx == NULL) )
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return NULL;
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avctx->debug = var_InheritInteger( p_dec, "avcodec-debug" );
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avctx->opaque = p_dec;
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return avctx;
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}
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/*****************************************************************************
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* ffmpeg_OpenCodec:
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*****************************************************************************/
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int ffmpeg_OpenCodec( decoder_t *p_dec, AVCodecContext *ctx,
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const AVCodec *codec )
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{
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char *psz_opts = var_InheritString( p_dec, "avcodec-options" );
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AVDictionary *options = NULL;
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int ret;
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if (psz_opts) {
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vlc_av_get_options(psz_opts, &options);
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free(psz_opts);
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}
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vlc_avcodec_lock();
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ret = avcodec_open2( ctx, codec, options ? &options : NULL );
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vlc_avcodec_unlock();
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AVDictionaryEntry *t = NULL;
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while ((t = av_dict_get(options, "", t, AV_DICT_IGNORE_SUFFIX))) {
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msg_Err( p_dec, "Unknown option \"%s\"", t->key );
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}
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av_dict_free(&options);
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if( ret < 0 )
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{
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msg_Err( p_dec, "cannot start codec (%s)", codec->name );
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return VLC_EGENERIC;
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}
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msg_Dbg( p_dec, "codec (%s) started", codec->name );
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return VLC_SUCCESS;
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}
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