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)
54 /*****************************************************************************
55 * decoder_sys_t: decoder descriptor
56 *****************************************************************************/
59 /* Common part between video and audio decoder */
63 /****************************************************************************
65 ****************************************************************************/
66 static int OpenDecoder( vlc_object_t * );
67 static void CloseDecoder( vlc_object_t * );
69 static const int nloopf_list[] = { 0, 1, 2, 3, 4 };
70 static const char *const nloopf_list_text[] =
71 { N_("None"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
74 static const char *const enc_hq_list[] = { "rd", "bits", "simple" };
75 static const char *const enc_hq_list_text[] = {
76 N_("rd"), N_("bits"), N_("simple") };
79 /*****************************************************************************
81 *****************************************************************************/
82 #define MODULE_DESCRIPTION N_( "Various audio and video decoders/encoders" \
83 "delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SV1,"\
84 "H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs")
87 set_shortname( "FFmpeg");
88 add_shortcut( "ffmpeg" );
89 set_category( CAT_INPUT );
90 set_subcategory( SUBCAT_INPUT_SCODEC );
91 /* decoder main module */
92 #if defined(MODULE_NAME_is_ffmpegaltivec) \
93 || (defined(CAN_COMPILE_ALTIVEC) && !defined(NO_ALTIVEC_IN_FFMPEG))
94 set_description( N_("AltiVec FFmpeg audio/video decoder ((MS)MPEG4,SVQ1,H263,WMV,WMA)") );
95 /*add_requirement( ALTIVEC );*/
96 set_capability( "decoder", 71 );
98 set_description( N_("FFmpeg audio/video decoder") );
99 set_help( MODULE_DESCRIPTION );
100 set_capability( "decoder", 70 );
102 set_section( N_("Decoding") , NULL );
103 set_callbacks( OpenDecoder, CloseDecoder );
106 add_bool( "ffmpeg-dr", 1, NULL, DR_TEXT, DR_TEXT, true );
107 add_integer ( "ffmpeg-error-resilience", 1, NULL, ERROR_TEXT,
108 ERROR_LONGTEXT, true );
109 add_integer ( "ffmpeg-workaround-bugs", 1, NULL, BUGS_TEXT, BUGS_LONGTEXT,
111 add_bool( "ffmpeg-hurry-up", 1, NULL, HURRYUP_TEXT, HURRYUP_LONGTEXT,
113 add_integer( "ffmpeg-skip-frame", 0, NULL, SKIP_FRAME_TEXT,
114 SKIP_FRAME_LONGTEXT, true );
115 change_integer_range( -1, 4 );
116 add_integer( "ffmpeg-skip-idct", 0, NULL, SKIP_IDCT_TEXT,
117 SKIP_IDCT_LONGTEXT, true );
118 change_integer_range( -1, 4 );
119 add_integer ( "ffmpeg-vismv", 0, NULL, VISMV_TEXT, VISMV_LONGTEXT,
121 add_integer ( "ffmpeg-lowres", 0, NULL, LOWRES_TEXT, LOWRES_LONGTEXT,
123 change_integer_range( 0, 2 );
124 add_integer ( "ffmpeg-skiploopfilter", 0, NULL, SKIPLOOPF_TEXT,
125 SKIPLOOPF_LONGTEXT, true );
126 change_integer_list( nloopf_list, nloopf_list_text, 0 );
128 add_integer( "ffmpeg-debug", 0, NULL, DEBUG_TEXT, DEBUG_LONGTEXT,
132 /* encoder submodule */
134 set_section( N_("Encoding") , NULL );
135 set_description( N_("FFmpeg audio/video encoder") );
136 set_capability( "encoder", 100 );
137 set_callbacks( OpenEncoder, CloseEncoder );
139 add_string( ENC_CFG_PREFIX "hq", "simple", NULL, ENC_HQ_TEXT,
140 ENC_HQ_LONGTEXT, false );
141 change_string_list( enc_hq_list, enc_hq_list_text, 0 );
142 add_integer( ENC_CFG_PREFIX "keyint", 0, NULL, ENC_KEYINT_TEXT,
143 ENC_KEYINT_LONGTEXT, false );
144 add_integer( ENC_CFG_PREFIX "bframes", 0, NULL, ENC_BFRAMES_TEXT,
145 ENC_BFRAMES_LONGTEXT, false );
146 add_bool( ENC_CFG_PREFIX "hurry-up", 0, NULL, ENC_HURRYUP_TEXT,
147 ENC_HURRYUP_LONGTEXT, false );
148 add_bool( ENC_CFG_PREFIX "interlace", 0, NULL, ENC_INTERLACE_TEXT,
149 ENC_INTERLACE_LONGTEXT, true );
150 add_bool( ENC_CFG_PREFIX "interlace-me", 1, NULL, ENC_INTERLACE_ME_TEXT,
151 ENC_INTERLACE_ME_LONGTEXT, true );
152 add_integer( ENC_CFG_PREFIX "vt", 0, NULL, ENC_VT_TEXT,
153 ENC_VT_LONGTEXT, true );
154 add_bool( ENC_CFG_PREFIX "pre-me", 0, NULL, ENC_PRE_ME_TEXT,
155 ENC_PRE_ME_LONGTEXT, true );
156 add_bool( ENC_CFG_PREFIX "strict-rc", 0, NULL, ENC_RC_STRICT_TEXT,
157 ENC_RC_STRICT_LONGTEXT, true );
158 add_integer( ENC_CFG_PREFIX "rc-buffer-size", 224*1024*8, NULL,
159 ENC_RC_BUF_TEXT, ENC_RC_BUF_LONGTEXT, true );
160 add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0, NULL,
161 ENC_RC_BUF_AGGR_TEXT, ENC_RC_BUF_AGGR_LONGTEXT, true );
162 add_float( ENC_CFG_PREFIX "i-quant-factor", 0, NULL,
163 ENC_IQUANT_FACTOR_TEXT, ENC_IQUANT_FACTOR_LONGTEXT, true );
164 add_integer( ENC_CFG_PREFIX "noise-reduction", 0, NULL,
165 ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT, true );
166 add_bool( ENC_CFG_PREFIX "mpeg4-matrix", 0, NULL,
167 ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT, true );
168 add_integer( ENC_CFG_PREFIX "qmin", 0, NULL,
169 ENC_QMIN_TEXT, ENC_QMIN_LONGTEXT, true );
170 add_integer( ENC_CFG_PREFIX "qmax", 0, NULL,
171 ENC_QMAX_TEXT, ENC_QMAX_LONGTEXT, true );
172 add_bool( ENC_CFG_PREFIX "trellis", 0, NULL,
173 ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT, true );
174 add_float( ENC_CFG_PREFIX "qscale", 0, NULL,
175 ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true );
176 add_integer( ENC_CFG_PREFIX "strict", 0, NULL,
177 ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true );
178 add_float( ENC_CFG_PREFIX "lumi-masking", 0.0, NULL,
179 ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT, true );
180 add_float( ENC_CFG_PREFIX "dark-masking", 0.0, NULL,
181 ENC_DARK_MASKING_TEXT, ENC_DARK_MASKING_LONGTEXT, true );
182 add_float( ENC_CFG_PREFIX "p-masking", 0.0, NULL,
183 ENC_P_MASKING_TEXT, ENC_P_MASKING_LONGTEXT, true );
184 add_float( ENC_CFG_PREFIX "border-masking", 0.0, NULL,
185 ENC_BORDER_MASKING_TEXT, ENC_BORDER_MASKING_LONGTEXT, true );
186 add_integer( ENC_CFG_PREFIX "luma-elim-threshold", 0, NULL,
187 ENC_LUMA_ELIM_TEXT, ENC_LUMA_ELIM_LONGTEXT, true );
188 add_integer( ENC_CFG_PREFIX "chroma-elim-threshold", 0, NULL,
189 ENC_CHROMA_ELIM_TEXT, ENC_CHROMA_ELIM_LONGTEXT, true );
191 #if LIBAVCODEC_VERSION_INT >= ((51<<16)+(40<<8)+4)
192 /* Audio AAC encoder profile */
193 add_string( ENC_CFG_PREFIX "aac-profile", "main", NULL,
194 ENC_PROFILE_TEXT, ENC_PROFILE_LONGTEXT, true );
196 #endif /* ENABLE_SOUT */
198 /* video filter submodule */
200 set_capability( "video filter2", 0 );
201 set_callbacks( OpenDeinterlace, CloseDeinterlace );
202 set_description( N_("FFmpeg deinterlace video filter") );
203 add_shortcut( "ffmpeg-deinterlace" );
207 /*****************************************************************************
208 * OpenDecoder: probe the decoder and return score
209 *****************************************************************************/
210 static int OpenDecoder( vlc_object_t *p_this )
212 decoder_t *p_dec = (decoder_t*) p_this;
213 int i_cat, i_codec_id, i_result;
214 const char *psz_namecodec;
216 AVCodecContext *p_context = NULL;
217 AVCodec *p_codec = NULL;
219 /* *** determine codec type *** */
220 if( !GetFfmpegCodec( p_dec->fmt_in.i_codec, &i_cat, &i_codec_id,
226 /* Bail out if buggy decoder */
227 if( i_codec_id == CODEC_ID_AAC )
229 msg_Dbg( p_dec, "refusing to use ffmpeg's (%s) decoder which is buggy",
234 /* Initialization must be done before avcodec_find_decoder() */
235 InitLibavcodec(p_this);
237 /* *** ask ffmpeg for a decoder *** */
238 p_codec = avcodec_find_decoder( i_codec_id );
241 msg_Dbg( p_dec, "codec not found (%s)", psz_namecodec );
245 /* *** get a p_context *** */
246 p_context = avcodec_alloc_context();
249 p_context->debug = config_GetInt( p_dec, "ffmpeg-debug" );
250 p_context->opaque = (void *)p_this;
252 /* Set CPU capabilities */
253 unsigned i_cpu = vlc_CPU();
254 p_context->dsp_mask = 0;
255 if( !(i_cpu & CPU_CAPABILITY_MMX) )
257 p_context->dsp_mask |= FF_MM_MMX;
259 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
261 p_context->dsp_mask |= FF_MM_MMXEXT;
263 if( !(i_cpu & CPU_CAPABILITY_3DNOW) )
265 p_context->dsp_mask |= FF_MM_3DNOW;
267 if( !(i_cpu & CPU_CAPABILITY_SSE) )
269 p_context->dsp_mask |= FF_MM_SSE;
271 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
273 p_context->dsp_mask |= FF_MM_SSE2;
276 p_dec->b_need_packetized = true;
280 p_dec->pf_decode_video = DecodeVideo;
281 i_result = InitVideoDec ( p_dec, p_context, p_codec,
282 i_codec_id, psz_namecodec );
285 p_dec->pf_decode_audio = DecodeAudio;
286 i_result = InitAudioDec ( p_dec, p_context, p_codec,
287 i_codec_id, psz_namecodec );
290 i_result = VLC_EGENERIC;
293 if( i_result == VLC_SUCCESS ) p_dec->p_sys->i_cat = i_cat;
298 /*****************************************************************************
299 * CloseDecoder: decoder destruction
300 *****************************************************************************/
301 static void CloseDecoder( vlc_object_t *p_this )
303 decoder_t *p_dec = (decoder_t *)p_this;
304 decoder_sys_t *p_sys = p_dec->p_sys;
306 switch( p_sys->i_cat )
309 EndAudioDec ( p_dec );
312 EndVideoDec ( p_dec );
316 if( p_sys->p_context )
320 if( p_sys->p_context->extradata )
321 free( p_sys->p_context->extradata );
322 p_sys->p_context->extradata = NULL;
324 lock = var_AcquireMutex( "avcodec" );
325 avcodec_close( p_sys->p_context );
326 vlc_mutex_unlock( lock );
327 msg_Dbg( p_dec, "ffmpeg codec (%s) stopped", p_sys->psz_namecodec );
328 av_free( p_sys->p_context );
334 void InitLibavcodec( vlc_object_t *p_object )
336 static int b_ffmpeginit = 0;
337 vlc_mutex_t *lock = var_AcquireMutex( "avcodec" );
339 /* *** init ffmpeg library (libavcodec) *** */
343 avcodec_register_all();
344 av_log_set_callback( LibavutilCallback );
347 msg_Dbg( p_object, "libavcodec initialized (interface %d )",
348 LIBAVCODEC_VERSION_INT );
352 msg_Dbg( p_object, "libavcodec already initialized" );
355 vlc_mutex_unlock( lock );