1 /*****************************************************************************
2 * avcodec.c: video and audio decoder and encoder using libavcodec
3 *****************************************************************************
4 * Copyright (C) 1999-2008 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_codec.h>
38 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
39 # include <libavcodec/avcodec.h>
40 #elif defined(HAVE_FFMPEG_AVCODEC_H)
41 # include <ffmpeg/avcodec.h>
46 #if LIBAVCODEC_BUILD < 5000
47 # error You must have a libavcodec >= 5000 (get svn)
53 /*****************************************************************************
54 * decoder_sys_t: decoder descriptor
55 *****************************************************************************/
58 /* Common part between video and audio decoder */
62 /****************************************************************************
64 ****************************************************************************/
65 static int OpenDecoder( vlc_object_t * );
66 static void CloseDecoder( vlc_object_t * );
68 static const int nloopf_list[] = { 0, 1, 2, 3, 4 };
69 static const char *const nloopf_list_text[] =
70 { N_("None"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
73 static const char *const enc_hq_list[] = { "rd", "bits", "simple" };
74 static const char *const enc_hq_list_text[] = {
75 N_("rd"), N_("bits"), N_("simple") };
78 /*****************************************************************************
80 *****************************************************************************/
81 #define MODULE_DESCRIPTION N_( "Various audio and video decoders/encoders" \
82 "delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SV1,"\
83 "H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs")
86 set_shortname( "FFmpeg")
87 add_shortcut( "ffmpeg" )
88 set_category( CAT_INPUT )
89 set_subcategory( SUBCAT_INPUT_SCODEC )
90 /* decoder main module */
91 #if defined(MODULE_NAME_is_ffmpegaltivec) \
92 || (defined(CAN_COMPILE_ALTIVEC) && !defined(NO_ALTIVEC_IN_FFMPEG))
93 set_description( N_("AltiVec FFmpeg audio/video decoder ((MS)MPEG4,SVQ1,H263,WMV,WMA)") )
94 /*add_requirement( ALTIVEC )*/
95 set_capability( "decoder", 71 )
97 set_description( N_("FFmpeg audio/video decoder") )
98 set_help( MODULE_DESCRIPTION )
99 set_capability( "decoder", 70 )
101 set_section( N_("Decoding") , NULL )
102 set_callbacks( OpenDecoder, CloseDecoder )
105 add_bool( "ffmpeg-dr", 1, NULL, DR_TEXT, DR_TEXT, true )
106 add_integer ( "ffmpeg-error-resilience", 1, NULL, ERROR_TEXT,
107 ERROR_LONGTEXT, true );
108 add_integer ( "ffmpeg-workaround-bugs", 1, NULL, BUGS_TEXT, BUGS_LONGTEXT,
110 add_bool( "ffmpeg-hurry-up", 1, NULL, HURRYUP_TEXT, HURRYUP_LONGTEXT,
112 add_integer( "ffmpeg-skip-frame", 0, NULL, SKIP_FRAME_TEXT,
113 SKIP_FRAME_LONGTEXT, true );
114 change_integer_range( -1, 4 )
115 add_integer( "ffmpeg-skip-idct", 0, NULL, SKIP_IDCT_TEXT,
116 SKIP_IDCT_LONGTEXT, true );
117 change_integer_range( -1, 4 )
118 add_integer ( "ffmpeg-vismv", 0, NULL, VISMV_TEXT, VISMV_LONGTEXT,
120 add_integer ( "ffmpeg-lowres", 0, NULL, LOWRES_TEXT, LOWRES_LONGTEXT,
122 change_integer_range( 0, 2 )
123 add_integer ( "ffmpeg-skiploopfilter", 0, NULL, SKIPLOOPF_TEXT,
124 SKIPLOOPF_LONGTEXT, true );
125 change_integer_list( nloopf_list, nloopf_list_text, NULL );
127 add_integer( "ffmpeg-debug", 0, NULL, DEBUG_TEXT, DEBUG_LONGTEXT,
131 /* encoder submodule */
133 set_section( N_("Encoding") , NULL )
134 set_description( N_("FFmpeg audio/video encoder") )
135 set_capability( "encoder", 100 )
136 set_callbacks( OpenEncoder, CloseEncoder )
138 add_string( ENC_CFG_PREFIX "hq", "simple", NULL, ENC_HQ_TEXT,
139 ENC_HQ_LONGTEXT, false );
140 change_string_list( enc_hq_list, enc_hq_list_text, 0 );
141 add_integer( ENC_CFG_PREFIX "keyint", 0, NULL, ENC_KEYINT_TEXT,
142 ENC_KEYINT_LONGTEXT, false );
143 add_integer( ENC_CFG_PREFIX "bframes", 0, NULL, ENC_BFRAMES_TEXT,
144 ENC_BFRAMES_LONGTEXT, false );
145 add_bool( ENC_CFG_PREFIX "hurry-up", 0, NULL, ENC_HURRYUP_TEXT,
146 ENC_HURRYUP_LONGTEXT, false );
147 add_bool( ENC_CFG_PREFIX "interlace", 0, NULL, ENC_INTERLACE_TEXT,
148 ENC_INTERLACE_LONGTEXT, true );
149 add_bool( ENC_CFG_PREFIX "interlace-me", 1, NULL, ENC_INTERLACE_ME_TEXT,
150 ENC_INTERLACE_ME_LONGTEXT, true );
151 add_integer( ENC_CFG_PREFIX "vt", 0, NULL, ENC_VT_TEXT,
152 ENC_VT_LONGTEXT, true );
153 add_bool( ENC_CFG_PREFIX "pre-me", 0, NULL, ENC_PRE_ME_TEXT,
154 ENC_PRE_ME_LONGTEXT, true );
155 add_integer( ENC_CFG_PREFIX "rc-buffer-size", 224*1024*8, NULL,
156 ENC_RC_BUF_TEXT, ENC_RC_BUF_LONGTEXT, true );
157 add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0, NULL,
158 ENC_RC_BUF_AGGR_TEXT, ENC_RC_BUF_AGGR_LONGTEXT, true );
159 add_float( ENC_CFG_PREFIX "i-quant-factor", 0, NULL,
160 ENC_IQUANT_FACTOR_TEXT, ENC_IQUANT_FACTOR_LONGTEXT, true );
161 add_integer( ENC_CFG_PREFIX "noise-reduction", 0, NULL,
162 ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT, true );
163 add_bool( ENC_CFG_PREFIX "mpeg4-matrix", 0, NULL,
164 ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT, true );
165 add_integer( ENC_CFG_PREFIX "qmin", 0, NULL,
166 ENC_QMIN_TEXT, ENC_QMIN_LONGTEXT, true );
167 add_integer( ENC_CFG_PREFIX "qmax", 0, NULL,
168 ENC_QMAX_TEXT, ENC_QMAX_LONGTEXT, true );
169 add_bool( ENC_CFG_PREFIX "trellis", 0, NULL,
170 ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT, true );
171 add_float( ENC_CFG_PREFIX "qscale", 0, NULL,
172 ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true );
173 add_integer( ENC_CFG_PREFIX "strict", 0, NULL,
174 ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true );
175 add_float( ENC_CFG_PREFIX "lumi-masking", 0.0, NULL,
176 ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT, true );
177 add_float( ENC_CFG_PREFIX "dark-masking", 0.0, NULL,
178 ENC_DARK_MASKING_TEXT, ENC_DARK_MASKING_LONGTEXT, true );
179 add_float( ENC_CFG_PREFIX "p-masking", 0.0, NULL,
180 ENC_P_MASKING_TEXT, ENC_P_MASKING_LONGTEXT, true );
181 add_float( ENC_CFG_PREFIX "border-masking", 0.0, NULL,
182 ENC_BORDER_MASKING_TEXT, ENC_BORDER_MASKING_LONGTEXT, true );
183 add_integer( ENC_CFG_PREFIX "luma-elim-threshold", 0, NULL,
184 ENC_LUMA_ELIM_TEXT, ENC_LUMA_ELIM_LONGTEXT, true );
185 add_integer( ENC_CFG_PREFIX "chroma-elim-threshold", 0, NULL,
186 ENC_CHROMA_ELIM_TEXT, ENC_CHROMA_ELIM_LONGTEXT, true );
188 #if LIBAVCODEC_VERSION_INT >= ((51<<16)+(40<<8)+4)
189 /* Audio AAC encoder profile */
190 add_string( ENC_CFG_PREFIX "aac-profile", "low", NULL,
191 ENC_PROFILE_TEXT, ENC_PROFILE_LONGTEXT, true );
193 #endif /* ENABLE_SOUT */
195 /* video filter submodule */
197 set_capability( "video filter2", 0 )
198 set_callbacks( OpenDeinterlace, CloseDeinterlace )
199 set_description( N_("FFmpeg deinterlace video filter") )
200 add_shortcut( "ffmpeg-deinterlace" )
204 vlc_mutex_t avcodec_lock = VLC_STATIC_MUTEX;
206 /*****************************************************************************
207 * OpenDecoder: probe the decoder and return score
208 *****************************************************************************/
209 static int OpenDecoder( vlc_object_t *p_this )
211 decoder_t *p_dec = (decoder_t*) p_this;
212 int i_cat, i_codec_id, i_result;
213 const char *psz_namecodec;
215 AVCodecContext *p_context = NULL;
216 AVCodec *p_codec = NULL;
218 /* *** determine codec type *** */
219 if( !GetFfmpegCodec( p_dec->fmt_in.i_codec, &i_cat, &i_codec_id,
225 /* Initialization must be done before avcodec_find_decoder() */
226 InitLibavcodec(p_this);
228 /* *** ask ffmpeg for a decoder *** */
229 p_codec = avcodec_find_decoder( i_codec_id );
232 msg_Dbg( p_dec, "codec not found (%s)", psz_namecodec );
236 /* *** get a p_context *** */
237 p_context = avcodec_alloc_context();
240 p_context->debug = config_GetInt( p_dec, "ffmpeg-debug" );
241 p_context->opaque = (void *)p_this;
243 /* Set CPU capabilities */
244 unsigned i_cpu = vlc_CPU();
245 p_context->dsp_mask = 0;
246 if( !(i_cpu & CPU_CAPABILITY_MMX) )
248 p_context->dsp_mask |= FF_MM_MMX;
250 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
252 p_context->dsp_mask |= FF_MM_MMXEXT;
254 if( !(i_cpu & CPU_CAPABILITY_3DNOW) )
256 p_context->dsp_mask |= FF_MM_3DNOW;
258 if( !(i_cpu & CPU_CAPABILITY_SSE) )
260 p_context->dsp_mask |= FF_MM_SSE;
262 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
264 p_context->dsp_mask |= FF_MM_SSE2;
267 p_dec->b_need_packetized = true;
271 p_dec->pf_decode_video = DecodeVideo;
272 i_result = InitVideoDec ( p_dec, p_context, p_codec,
273 i_codec_id, psz_namecodec );
276 p_dec->pf_decode_audio = DecodeAudio;
277 i_result = InitAudioDec ( p_dec, p_context, p_codec,
278 i_codec_id, psz_namecodec );
281 i_result = VLC_EGENERIC;
284 if( i_result == VLC_SUCCESS ) p_dec->p_sys->i_cat = i_cat;
289 /*****************************************************************************
290 * CloseDecoder: decoder destruction
291 *****************************************************************************/
292 static void CloseDecoder( vlc_object_t *p_this )
294 decoder_t *p_dec = (decoder_t *)p_this;
295 decoder_sys_t *p_sys = p_dec->p_sys;
297 switch( p_sys->i_cat )
300 EndAudioDec ( p_dec );
303 EndVideoDec ( p_dec );
307 if( p_sys->p_context )
309 free( p_sys->p_context->extradata );
310 p_sys->p_context->extradata = NULL;
312 if( !p_sys->b_delayed_open )
314 vlc_mutex_lock( &avcodec_lock );
315 avcodec_close( p_sys->p_context );
316 vlc_mutex_unlock( &avcodec_lock );
318 msg_Dbg( p_dec, "ffmpeg codec (%s) stopped", p_sys->psz_namecodec );
319 av_free( p_sys->p_context );
325 void InitLibavcodec( vlc_object_t *p_object )
327 static bool b_ffmpeginit = false;
329 vlc_mutex_lock( &avcodec_lock );
331 /* *** init ffmpeg library (libavcodec) *** */
335 avcodec_register_all();
336 av_log_set_callback( LibavutilCallback );
339 msg_Dbg( p_object, "libavcodec initialized (interface 0x%x)",
340 LIBAVCODEC_VERSION_INT );
344 msg_Dbg( p_object, "libavcodec already initialized" );
347 vlc_mutex_unlock( &avcodec_lock );