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>
35 #include <vlc_avcodec.h>
39 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
40 # include <libavcodec/avcodec.h>
41 #elif defined(HAVE_FFMPEG_AVCODEC_H)
42 # include <ffmpeg/avcodec.h>
50 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT( 51, 48, 0 )
51 # error You must update libavcodec to a version >= 51.48.0
52 #elif LIBAVCODEC_VERSION_INT < AV_VERSION_INT( 52, 25, 0 )
53 # warning You should update libavcodec to get subtitle support
56 /*****************************************************************************
57 * decoder_sys_t: decoder descriptor
58 *****************************************************************************/
61 /* Common part between video and audio decoder */
65 /****************************************************************************
67 ****************************************************************************/
68 static int OpenDecoder( vlc_object_t * );
69 static void CloseDecoder( vlc_object_t * );
71 static const int nloopf_list[] = { 0, 1, 2, 3, 4 };
72 static const char *const nloopf_list_text[] =
73 { N_("None"), N_("Non-ref"), N_("Bidir"), N_("Non-key"), N_("All") };
76 static const char *const enc_hq_list[] = { "rd", "bits", "simple" };
77 static const char *const enc_hq_list_text[] = {
78 N_("rd"), N_("bits"), N_("simple") };
81 /*****************************************************************************
83 *****************************************************************************/
84 #define MODULE_DESCRIPTION N_( "Various audio and video decoders/encoders" \
85 "delivered by the FFmpeg library. This includes (MS)MPEG4, DivX, SV1,"\
86 "H261, H263, H264, WMV, WMA, AAC, AMR, DV, MJPEG and other codecs")
89 set_shortname( "FFmpeg")
90 add_shortcut( "ffmpeg" )
91 set_category( CAT_INPUT )
92 set_subcategory( SUBCAT_INPUT_SCODEC )
93 /* decoder main module */
94 #if defined(MODULE_NAME_is_ffmpegaltivec) \
95 || (defined(CAN_COMPILE_ALTIVEC) && !defined(NO_ALTIVEC_IN_FFMPEG))
96 set_description( N_("AltiVec FFmpeg audio/video decoder ((MS)MPEG4,SVQ1,H263,WMV,WMA)") )
97 /*add_requirement( ALTIVEC )*/
98 set_capability( "decoder", 71 )
100 set_description( N_("FFmpeg audio/video decoder") )
101 set_help( MODULE_DESCRIPTION )
102 set_capability( "decoder", 70 )
104 set_section( N_("Decoding") , NULL )
105 set_callbacks( OpenDecoder, CloseDecoder )
108 add_bool( "ffmpeg-dr", true, NULL, DR_TEXT, DR_TEXT, true )
109 add_integer ( "ffmpeg-error-resilience", 1, NULL, ERROR_TEXT,
110 ERROR_LONGTEXT, true )
111 add_integer ( "ffmpeg-workaround-bugs", 1, NULL, BUGS_TEXT, BUGS_LONGTEXT,
113 add_bool( "ffmpeg-hurry-up", true, NULL, HURRYUP_TEXT, HURRYUP_LONGTEXT,
115 add_integer( "ffmpeg-skip-frame", 0, NULL, SKIP_FRAME_TEXT,
116 SKIP_FRAME_LONGTEXT, true )
117 change_integer_range( -1, 4 )
118 add_integer( "ffmpeg-skip-idct", 0, NULL, SKIP_IDCT_TEXT,
119 SKIP_IDCT_LONGTEXT, true )
120 change_integer_range( -1, 4 )
121 add_integer ( "ffmpeg-vismv", 0, NULL, VISMV_TEXT, VISMV_LONGTEXT,
123 add_integer ( "ffmpeg-lowres", 0, NULL, LOWRES_TEXT, LOWRES_LONGTEXT,
125 change_integer_range( 0, 2 )
126 add_bool( "ffmpeg-fast", false, NULL, FAST_TEXT, FAST_LONGTEXT, true )
127 add_integer ( "ffmpeg-skiploopfilter", 0, NULL, SKIPLOOPF_TEXT,
128 SKIPLOOPF_LONGTEXT, true )
130 change_integer_list( nloopf_list, nloopf_list_text, NULL )
132 add_integer( "ffmpeg-debug", 0, NULL, DEBUG_TEXT, DEBUG_LONGTEXT,
134 #ifdef HAVE_AVCODEC_VAAPI
135 add_bool( "ffmpeg-hw", true, NULL, HW_TEXT, HW_LONGTEXT, true )
139 /* encoder submodule */
141 add_shortcut( "ffmpeg" )
142 set_section( N_("Encoding") , NULL )
143 set_description( N_("FFmpeg audio/video encoder") )
144 set_capability( "encoder", 100 )
145 set_callbacks( OpenEncoder, CloseEncoder )
147 add_string( ENC_CFG_PREFIX "hq", "simple", NULL, ENC_HQ_TEXT,
148 ENC_HQ_LONGTEXT, false )
149 change_string_list( enc_hq_list, enc_hq_list_text, 0 )
150 add_integer( ENC_CFG_PREFIX "keyint", 0, NULL, ENC_KEYINT_TEXT,
151 ENC_KEYINT_LONGTEXT, false )
152 add_integer( ENC_CFG_PREFIX "bframes", 0, NULL, ENC_BFRAMES_TEXT,
153 ENC_BFRAMES_LONGTEXT, false )
154 add_bool( ENC_CFG_PREFIX "hurry-up", false, NULL, ENC_HURRYUP_TEXT,
155 ENC_HURRYUP_LONGTEXT, false )
156 add_bool( ENC_CFG_PREFIX "interlace", false, NULL, ENC_INTERLACE_TEXT,
157 ENC_INTERLACE_LONGTEXT, true )
158 add_bool( ENC_CFG_PREFIX "interlace-me", true, NULL, ENC_INTERLACE_ME_TEXT,
159 ENC_INTERLACE_ME_LONGTEXT, true )
160 add_integer( ENC_CFG_PREFIX "vt", 0, NULL, ENC_VT_TEXT,
161 ENC_VT_LONGTEXT, true )
162 add_bool( ENC_CFG_PREFIX "pre-me", false, NULL, ENC_PRE_ME_TEXT,
163 ENC_PRE_ME_LONGTEXT, true )
164 add_integer( ENC_CFG_PREFIX "rc-buffer-size", 224*1024*8, NULL,
165 ENC_RC_BUF_TEXT, ENC_RC_BUF_LONGTEXT, true )
166 add_float( ENC_CFG_PREFIX "rc-buffer-aggressivity", 1.0, NULL,
167 ENC_RC_BUF_AGGR_TEXT, ENC_RC_BUF_AGGR_LONGTEXT, true )
168 add_float( ENC_CFG_PREFIX "i-quant-factor", 0, NULL,
169 ENC_IQUANT_FACTOR_TEXT, ENC_IQUANT_FACTOR_LONGTEXT, true )
170 add_integer( ENC_CFG_PREFIX "noise-reduction", 0, NULL,
171 ENC_NOISE_RED_TEXT, ENC_NOISE_RED_LONGTEXT, true )
172 add_bool( ENC_CFG_PREFIX "mpeg4-matrix", false, NULL,
173 ENC_MPEG4_MATRIX_TEXT, ENC_MPEG4_MATRIX_LONGTEXT, true )
174 add_integer( ENC_CFG_PREFIX "qmin", 0, NULL,
175 ENC_QMIN_TEXT, ENC_QMIN_LONGTEXT, true )
176 add_integer( ENC_CFG_PREFIX "qmax", 0, NULL,
177 ENC_QMAX_TEXT, ENC_QMAX_LONGTEXT, true )
178 add_bool( ENC_CFG_PREFIX "trellis", false, NULL,
179 ENC_TRELLIS_TEXT, ENC_TRELLIS_LONGTEXT, true )
180 add_float( ENC_CFG_PREFIX "qscale", 0, NULL,
181 ENC_QSCALE_TEXT, ENC_QSCALE_LONGTEXT, true )
182 add_integer( ENC_CFG_PREFIX "strict", 0, NULL,
183 ENC_STRICT_TEXT, ENC_STRICT_LONGTEXT, true )
184 add_float( ENC_CFG_PREFIX "lumi-masking", 0.0, NULL,
185 ENC_LUMI_MASKING_TEXT, ENC_LUMI_MASKING_LONGTEXT, true )
186 add_float( ENC_CFG_PREFIX "dark-masking", 0.0, NULL,
187 ENC_DARK_MASKING_TEXT, ENC_DARK_MASKING_LONGTEXT, true )
188 add_float( ENC_CFG_PREFIX "p-masking", 0.0, NULL,
189 ENC_P_MASKING_TEXT, ENC_P_MASKING_LONGTEXT, true )
190 add_float( ENC_CFG_PREFIX "border-masking", 0.0, NULL,
191 ENC_BORDER_MASKING_TEXT, ENC_BORDER_MASKING_LONGTEXT, true )
192 add_integer( ENC_CFG_PREFIX "luma-elim-threshold", 0, NULL,
193 ENC_LUMA_ELIM_TEXT, ENC_LUMA_ELIM_LONGTEXT, true )
194 add_integer( ENC_CFG_PREFIX "chroma-elim-threshold", 0, NULL,
195 ENC_CHROMA_ELIM_TEXT, ENC_CHROMA_ELIM_LONGTEXT, true )
197 /* Audio AAC encoder profile */
198 add_string( ENC_CFG_PREFIX "aac-profile", "low", NULL,
199 ENC_PROFILE_TEXT, ENC_PROFILE_LONGTEXT, true )
200 #endif /* ENABLE_SOUT */
202 /* video filter submodule */
204 set_capability( "video filter2", 0 )
205 set_callbacks( OpenDeinterlace, CloseDeinterlace )
206 set_description( N_("FFmpeg deinterlace video filter") )
207 add_shortcut( "ffmpeg-deinterlace" )
211 /*****************************************************************************
212 * OpenDecoder: probe the decoder and return score
213 *****************************************************************************/
214 static int OpenDecoder( vlc_object_t *p_this )
216 decoder_t *p_dec = (decoder_t*) p_this;
217 int i_cat, i_codec_id, i_result;
218 const char *psz_namecodec;
220 AVCodecContext *p_context = NULL;
221 AVCodec *p_codec = NULL;
223 /* *** determine codec type *** */
224 if( !GetFfmpegCodec( p_dec->fmt_in.i_codec, &i_cat, &i_codec_id,
230 /* Initialization must be done before avcodec_find_decoder() */
231 InitLibavcodec(p_this);
233 /* *** ask ffmpeg for a decoder *** */
234 p_codec = avcodec_find_decoder( i_codec_id );
237 msg_Dbg( p_dec, "codec not found (%s)", psz_namecodec );
241 /* *** get a p_context *** */
242 p_context = avcodec_alloc_context();
245 p_context->debug = config_GetInt( p_dec, "ffmpeg-debug" );
246 p_context->opaque = (void *)p_this;
248 /* Set CPU capabilities */
249 unsigned i_cpu = vlc_CPU();
250 p_context->dsp_mask = 0;
251 if( !(i_cpu & CPU_CAPABILITY_MMX) )
253 p_context->dsp_mask |= FF_MM_MMX;
255 if( !(i_cpu & CPU_CAPABILITY_MMXEXT) )
257 p_context->dsp_mask |= FF_MM_MMXEXT;
259 if( !(i_cpu & CPU_CAPABILITY_3DNOW) )
261 p_context->dsp_mask |= FF_MM_3DNOW;
263 if( !(i_cpu & CPU_CAPABILITY_SSE) )
265 p_context->dsp_mask |= FF_MM_SSE;
267 if( !(i_cpu & CPU_CAPABILITY_SSE2) )
269 p_context->dsp_mask |= FF_MM_SSE2;
272 p_dec->b_need_packetized = true;
276 p_dec->pf_decode_video = DecodeVideo;
277 i_result = InitVideoDec ( p_dec, p_context, p_codec,
278 i_codec_id, psz_namecodec );
281 p_dec->pf_decode_audio = DecodeAudio;
282 i_result = InitAudioDec ( p_dec, p_context, p_codec,
283 i_codec_id, psz_namecodec );
285 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 25, 0 )
287 p_dec->pf_decode_sub = DecodeSubtitle;
288 i_result = InitSubtitleDec( p_dec, p_context, p_codec,
289 i_codec_id, psz_namecodec );
293 i_result = VLC_EGENERIC;
296 if( i_result == VLC_SUCCESS ) p_dec->p_sys->i_cat = i_cat;
301 /*****************************************************************************
302 * CloseDecoder: decoder destruction
303 *****************************************************************************/
304 static void CloseDecoder( vlc_object_t *p_this )
306 decoder_t *p_dec = (decoder_t *)p_this;
307 decoder_sys_t *p_sys = p_dec->p_sys;
309 switch( p_sys->i_cat )
312 EndAudioDec ( p_dec );
315 EndVideoDec ( p_dec );
317 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 25, 0 )
319 EndSubtitleDec( p_dec );
324 if( p_sys->p_context )
326 free( p_sys->p_context->extradata );
327 p_sys->p_context->extradata = NULL;
329 if( !p_sys->b_delayed_open )
332 avcodec_close( p_sys->p_context );
333 vlc_avcodec_unlock();
335 msg_Dbg( p_dec, "ffmpeg codec (%s) stopped", p_sys->psz_namecodec );
336 av_free( p_sys->p_context );
342 void InitLibavcodec( vlc_object_t *p_object )
344 static bool b_ffmpeginit = false;
348 /* *** init ffmpeg library (libavcodec) *** */
352 avcodec_register_all();
353 av_log_set_callback( LibavutilCallback );
356 msg_Dbg( p_object, "libavcodec initialized (interface 0x%x)",
357 LIBAVCODEC_VERSION_INT );
361 msg_Dbg( p_object, "libavcodec already initialized" );
364 vlc_avcodec_unlock();