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390 lines
15 KiB
390 lines
15 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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* $Id$
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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_avcodec.h>
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#include <vlc_cpu.h>
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#define HAVE_MMX 1
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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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* decoder_sys_t: decoder descriptor
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*****************************************************************************/
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struct decoder_sys_t
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{
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/* Common part between video and audio decoder */
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AVCODEC_COMMON_MEMBERS
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};
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/****************************************************************************
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* Local prototypes
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****************************************************************************/
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static int OpenDecoder( vlc_object_t * );
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static void CloseDecoder( vlc_object_t * );
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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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# include "../../demux/avformat/avformat.h"
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# include "../../access/avio.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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add_shortcut( "ffmpeg" )
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set_category( CAT_INPUT )
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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_capability( "decoder", 70 )
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set_section( N_("Decoding") , NULL )
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set_callbacks( OpenDecoder, CloseDecoder )
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add_obsolete_bool( "ffmpeg-dr" ) /* removed since 2.1.0 */
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add_bool( "avcodec-dr", true, DR_TEXT, DR_TEXT, true )
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add_obsolete_integer ( "ffmpeg-error-resilience" ) /* removed since 2.1.0 */
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add_integer ( "avcodec-error-resilience", 1, ERROR_TEXT,
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ERROR_LONGTEXT, true )
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add_obsolete_integer ( "ffmpeg-workaround-bugs" ) /* removed since 2.1.0 */
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add_integer ( "avcodec-workaround-bugs", 1, BUGS_TEXT, BUGS_LONGTEXT,
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false )
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add_obsolete_bool( "ffmpeg-hurry-up" ) /* removed since 2.1.0 */
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add_bool( "avcodec-hurry-up", true, HURRYUP_TEXT, HURRYUP_LONGTEXT,
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false )
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add_obsolete_integer( "ffmpeg-skip-frame") /* removed since 2.1.0 */
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add_integer( "avcodec-skip-frame", 0, SKIP_FRAME_TEXT,
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SKIP_FRAME_LONGTEXT, true )
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change_integer_range( -1, 4 )
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add_obsolete_integer( "ffmpeg-skip-idct" ) /* removed since 2.1.0 */
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add_integer( "avcodec-skip-idct", 0, SKIP_IDCT_TEXT,
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SKIP_IDCT_LONGTEXT, true )
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change_integer_range( -1, 4 )
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add_obsolete_integer( "ffmpeg-vismv" ) /* removed since 2.1.0 */
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add_obsolete_integer( "avcodec-vismv" ) /* removed since 3.0.0 */
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add_obsolete_integer ( "ffmpeg-lowres" ) /* removed since 2.1.0 */
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add_obsolete_bool( "ffmpeg-fast" ) /* removed since 2.1.0 */
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add_bool( "avcodec-fast", false, FAST_TEXT, FAST_LONGTEXT, false )
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add_obsolete_integer ( "ffmpeg-skiploopfilter" ) /* removed since 2.1.0 */
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add_integer ( "avcodec-skiploopfilter", 0, SKIPLOOPF_TEXT,
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SKIPLOOPF_LONGTEXT, false)
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change_safe ()
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change_integer_list( nloopf_list, nloopf_list_text )
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add_obsolete_integer( "ffmpeg-debug" ) /* removed since 2.1.0 */
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add_integer( "avcodec-debug", 0, DEBUG_TEXT, DEBUG_LONGTEXT,
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true )
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add_obsolete_string( "ffmpeg-codec" ) /* removed since 2.1.0 */
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add_string( "avcodec-codec", NULL, CODEC_TEXT, CODEC_LONGTEXT, true )
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add_obsolete_bool( "ffmpeg-hw" ) /* removed since 2.1.0 */
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add_module( "avcodec-hw", "hw decoder", "any", HW_TEXT, HW_LONGTEXT, false )
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#if defined(FF_THREAD_FRAME)
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add_obsolete_integer( "ffmpeg-threads" ) /* removed since 2.1.0 */
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add_integer( "avcodec-threads", 0, THREADS_TEXT, THREADS_LONGTEXT, true );
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#endif
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add_string( "avcodec-options", NULL, AV_OPTIONS_TEXT, AV_OPTIONS_LONGTEXT, true )
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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 audio/video encoder") )
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set_capability( "encoder", 100 )
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set_callbacks( OpenEncoder, CloseEncoder )
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/* removed in 2.1.0 */
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add_obsolete_string( "sout-ffmpeg-codec" )
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add_obsolete_string( "sout-ffmpeg-hq" )
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add_obsolete_integer( "sout-ffmpeg-keyint" )
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add_obsolete_integer( "sout-ffmpeg-bframes" )
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add_obsolete_bool( "sout-ffmpeg-hurry-up" )
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add_obsolete_bool( "sout-ffmpeg-interlace" )
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add_obsolete_bool( "sout-ffmpeg-interlace-me" )
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add_obsolete_integer( "sout-ffmpeg-vt" )
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add_obsolete_bool( "sout-ffmpeg-pre-me" )
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add_obsolete_integer( "sout-ffmpeg-rc-buffer-size" )
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add_obsolete_float( "sout-ffmpeg-rc-buffer-aggressivity" )
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add_obsolete_float( "sout-ffmpeg-i-quant-factor" )
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add_obsolete_integer( "sout-ffmpeg-noise-reduction" )
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add_obsolete_bool( "sout-ffmpeg-mpeg4-matrix" )
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add_obsolete_integer( "sout-ffmpeg-qmin" )
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add_obsolete_integer( "sout-ffmpeg-qmax" )
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add_obsolete_bool( "sout-ffmpeg-trellis" )
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add_obsolete_float( "sout-ffmpeg-qscale" )
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add_obsolete_integer( "sout-ffmpeg-strict" )
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add_obsolete_float( "sout-ffmpeg-lumi-masking" )
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add_obsolete_float( "sout-ffmpeg-dark-masking" )
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add_obsolete_float( "sout-ffmpeg-p-masking" )
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add_obsolete_float( "sout-ffmpeg-border-masking" )
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add_obsolete_integer( "sout-ffmpeg-luma-elim-threshold" )
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add_obsolete_integer( "sout-ffmpeg-chroma-elim-threshold" )
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add_obsolete_string( "sout-ffmpeg-aac-profile" )
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add_string( ENC_CFG_PREFIX "codec", NULL, CODEC_TEXT, CODEC_LONGTEXT, true )
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add_string( ENC_CFG_PREFIX "hq", "rd", ENC_HQ_TEXT,
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ENC_HQ_LONGTEXT, false )
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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, false )
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add_integer( ENC_CFG_PREFIX "bframes", 0, ENC_BFRAMES_TEXT,
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ENC_BFRAMES_LONGTEXT, false )
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add_bool( ENC_CFG_PREFIX "hurry-up", false, ENC_HURRYUP_TEXT,
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ENC_HURRYUP_LONGTEXT, false )
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add_bool( ENC_CFG_PREFIX "interlace", false, ENC_INTERLACE_TEXT,
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ENC_INTERLACE_LONGTEXT, true )
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add_bool( ENC_CFG_PREFIX "interlace-me", true, ENC_INTERLACE_ME_TEXT,
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ENC_INTERLACE_ME_LONGTEXT, true )
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add_integer( ENC_CFG_PREFIX "vt", 0, ENC_VT_TEXT,
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ENC_VT_LONGTEXT, true )
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add_bool( ENC_CFG_PREFIX "pre-me", false, ENC_PRE_ME_TEXT,
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ENC_PRE_ME_LONGTEXT, true )
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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, true )
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add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0,
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ENC_RC_BUF_AGGR_TEXT, ENC_RC_BUF_AGGR_LONGTEXT, true )
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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, true )
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add_integer( ENC_CFG_PREFIX "noise-reduction", 0,
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ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT, true )
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add_bool( ENC_CFG_PREFIX "mpeg4-matrix", false,
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ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT, true )
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add_integer( ENC_CFG_PREFIX "qmin", 0,
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ENC_QMIN_TEXT, ENC_QMIN_LONGTEXT, true )
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add_integer( ENC_CFG_PREFIX "qmax", 0,
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ENC_QMAX_TEXT, ENC_QMAX_LONGTEXT, true )
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add_bool( ENC_CFG_PREFIX "trellis", false,
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ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT, true )
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add_float( ENC_CFG_PREFIX "qscale", 0,
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ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true )
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add_integer( ENC_CFG_PREFIX "strict", 0,
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ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true )
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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, true )
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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, true )
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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, true )
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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, true )
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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, true )
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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, true )
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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, true )
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add_string( ENC_CFG_PREFIX "options", NULL, AV_OPTIONS_TEXT, AV_OPTIONS_LONGTEXT, true )
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#endif /* ENABLE_SOUT */
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#ifdef MERGE_FFMPEG
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add_submodule ()
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# include "../../demux/avformat/avformat.c"
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add_submodule ()
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AVIO_MODULE
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#endif
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vlc_module_end ()
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/*****************************************************************************
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* OpenDecoder: probe the decoder and return score
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*****************************************************************************/
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static int OpenDecoder( vlc_object_t *p_this )
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{
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decoder_t *p_dec = (decoder_t*) p_this;
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unsigned i_codec_id;
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int i_cat, i_result;
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const char *psz_namecodec;
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AVCodecContext *p_context = NULL;
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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, &i_cat, &i_codec_id,
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&psz_namecodec ) )
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{
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return VLC_EGENERIC;
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}
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/* Initialization must be done before avcodec_find_decoder() */
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vlc_init_avcodec(p_this);
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/* *** ask ffmpeg for a decoder *** */
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char *psz_decoder = var_CreateGetString( p_this, "avcodec-codec" );
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if( psz_decoder && *psz_decoder )
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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_this, "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_this, "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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}
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free( psz_decoder );
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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 VLC_EGENERIC;
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}
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/* *** get a p_context *** */
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p_context = avcodec_alloc_context3(p_codec);
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if( !p_context )
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return VLC_ENOMEM;
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p_context->debug = var_InheritInteger( p_dec, "avcodec-debug" );
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p_context->opaque = (void *)p_this;
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p_dec->b_need_packetized = true;
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switch( i_cat )
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{
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case VIDEO_ES:
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i_result = InitVideoDec( p_dec, p_context, p_codec );
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break;
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case AUDIO_ES:
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i_result = InitAudioDec( p_dec, p_context, p_codec );
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break;
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case SPU_ES:
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i_result = InitSubtitleDec( p_dec, p_context, p_codec );
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break;
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default:
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return VLC_EGENERIC;
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}
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if( i_result == VLC_SUCCESS )
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{
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if( p_context->profile != FF_PROFILE_UNKNOWN)
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p_dec->fmt_in.i_profile = p_context->profile;
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if( p_context->level != FF_LEVEL_UNKNOWN)
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p_dec->fmt_in.i_level = p_context->level;
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}
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return i_result;
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}
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/*****************************************************************************
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* CloseDecoder: decoder destruction
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*****************************************************************************/
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static void CloseDecoder( vlc_object_t *p_this )
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{
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decoder_t *p_dec = (decoder_t *)p_this;
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decoder_sys_t *p_sys = p_dec->p_sys;
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switch( p_dec->fmt_out.i_cat )
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{
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case VIDEO_ES:
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EndVideoDec ( p_dec );
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break;
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}
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if( p_sys->p_context )
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{
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av_free( p_sys->p_context->extradata );
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p_sys->p_context->extradata = NULL;
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if( !p_sys->b_delayed_open )
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{
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vlc_avcodec_lock();
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avcodec_close( p_sys->p_context );
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vlc_avcodec_unlock();
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}
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msg_Dbg( p_dec, "ffmpeg codec (%s) stopped", p_sys->p_codec->name );
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av_free( p_sys->p_context );
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}
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free( p_sys );
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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 )
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{
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decoder_sys_t *p_sys = p_dec->p_sys;
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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 && *psz_opts)
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options = vlc_av_get_options(psz_opts);
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free(psz_opts);
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vlc_avcodec_lock();
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ret = avcodec_open2( p_sys->p_context, p_sys->p_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)", p_sys->p_codec->name );
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return VLC_EGENERIC;
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}
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msg_Dbg( p_dec, "codec (%s) started", p_sys->p_codec->name );
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p_sys->b_delayed_open = false;
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return VLC_SUCCESS;
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}
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