1 /*****************************************************************************
2 * ffmpeg.h: decoder using the ffmpeg library
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 #include "codecs.h" /* BITMAPINFOHEADER */
26 #if LIBAVCODEC_BUILD >= 4663
27 # define LIBAVCODEC_PP
34 struct AVCodecContext;
37 void E_(InitLibavcodec)( vlc_object_t * );
38 int E_(GetFfmpegCodec) ( vlc_fourcc_t, int *, int *, char ** );
39 int E_(GetVlcFourcc) ( int, int *, vlc_fourcc_t *, char ** );
40 int E_(GetFfmpegChroma)( vlc_fourcc_t );
41 vlc_fourcc_t E_(GetVlcChroma)( int );
43 /* Video decoder module */
44 int E_( InitVideoDec )( decoder_t *, AVCodecContext *, AVCodec *,
46 void E_( EndVideoDec ) ( decoder_t * );
47 picture_t *E_( DecodeVideo ) ( decoder_t *, block_t ** );
49 /* Audio decoder module */
50 int E_( InitAudioDec )( decoder_t *, AVCodecContext *, AVCodec *,
52 void E_( EndAudioDec ) ( decoder_t * );
53 aout_buffer_t *E_( DecodeAudio ) ( decoder_t *, block_t ** );
55 /* Chroma conversion module */
56 int E_(OpenChroma)( vlc_object_t * );
57 void E_(CloseChroma)( vlc_object_t * );
59 /* Video encoder module */
60 int E_(OpenEncoder) ( vlc_object_t * );
61 void E_(CloseEncoder)( vlc_object_t * );
63 /* Audio encoder module */
64 int E_(OpenAudioEncoder) ( vlc_object_t * );
65 void E_(CloseAudioEncoder)( vlc_object_t * );
68 int E_(OpenDemux) ( vlc_object_t * );
69 void E_(CloseDemux)( vlc_object_t * );
71 /* Video filter module */
72 int E_(OpenFilter)( vlc_object_t * );
73 void E_(CloseFilter)( vlc_object_t * );
75 /* Postprocessing module */
76 void *E_(OpenPostproc)( decoder_t *, vlc_bool_t * );
77 int E_(InitPostproc)( decoder_t *, void *, int, int, int );
78 int E_(PostprocPict)( decoder_t *, void *, picture_t *, AVFrame * );
79 void E_(ClosePostproc)( decoder_t *, void * );
81 /*****************************************************************************
82 * Module descriptor help strings
83 *****************************************************************************/
84 #define DR_TEXT N_("Direct rendering")
86 #define ERROR_TEXT N_("Error resilience")
87 #define ERROR_LONGTEXT N_( \
88 "ffmpeg can do error resilience.\n" \
89 "However, with a buggy encoder (such as the ISO MPEG-4 encoder from M$) " \
90 "this can produce a lot of errors.\n" \
91 "Valid values range from 0 to 4 (0 disables all errors resilience).")
93 #define BUGS_TEXT N_("Workaround bugs")
94 #define BUGS_LONGTEXT N_( \
95 "Try to fix some bugs\n" \
98 "4 xvid interlaced\n" \
104 #define HURRYUP_TEXT N_("Hurry up")
105 #define HURRYUP_LONGTEXT N_( \
106 "Allow the decoder to partially decode or skip frame(s) " \
107 "when there is not enough time. It's useful with low CPU power " \
108 "but it can produce distorted pictures.")
110 #define PP_Q_TEXT N_("Post processing quality")
111 #define PP_Q_LONGTEXT N_( \
112 "Quality of post processing. Valid range is 0 to 6\n" \
113 "Higher levels require considerable more CPU power, but produce " \
114 "better looking pictures." )
116 #define DEBUG_TEXT N_( "Debug mask" )
117 #define DEBUG_LONGTEXT N_( "Set ffmpeg debug mask" )
119 #define VISMV_TEXT N_( "Visualize motion vectors" )
120 #define VISMV_LONGTEXT N_( "Set motion vectors visualization mask.\n" \
121 "1 - visualize forward predicted MVs of P frames\n" \
122 "2 - visualize forward predicted MVs of B frames\n" \
123 "4 - visualize backward predicted MVs of B frames" )
125 #define LIBAVCODEC_PP_TEXT N_("ffmpeg post processing filter chains")
126 /* FIXME (cut/past from ffmpeg */
127 #define LIBAVCODEC_PP_LONGTEXT \
128 "<filterName>[:<option>[:<option>...]][[,|/][-]<filterName>[:<option>...]]...\n" \
129 "long form example:\n" \
130 "vdeblock:autoq/hdeblock:autoq/linblenddeint default,-vdeblock\n" \
131 "short form example:\n" \
132 "vb:a/hb:a/lb de,-vb\n" \
135 "Filters Options\n" \
136 "short long name short long option Description\n" \
137 "* * a autoq cpu power dependant enabler\n" \
138 " c chrom chrominance filtring enabled\n" \
139 " y nochrom chrominance filtring disabled\n" \
140 "hb hdeblock (2 Threshold) horizontal deblocking filter\n" \
141 " 1. difference factor: default=64, higher -> more deblocking\n" \
142 " 2. flatness threshold: default=40, lower -> more deblocking\n" \
143 " the h & v deblocking filters share these\n" \
144 " so u cant set different thresholds for h / v\n" \
145 "vb vdeblock (2 Threshold) vertical deblocking filter\n" \
146 "h1 x1hdeblock Experimental h deblock filter 1\n" \
147 "v1 x1vdeblock Experimental v deblock filter 1\n" \
148 "dr dering Deringing filter\n" \
149 "al autolevels automatic brightness / contrast\n" \
150 " f fullyrange stretch luminance to (0..255)\n" \
151 "lb linblenddeint linear blend deinterlacer\n" \
152 "li linipoldeint linear interpolating deinterlace\n" \
153 "ci cubicipoldeint cubic interpolating deinterlacer\n" \
154 "md mediandeint median deinterlacer\n" \
155 "fd ffmpegdeint ffmpeg deinterlacer\n" \
156 "de default hb:a,vb:a,dr:a,al\n" \
157 "fa fast h1:a,v1:a,dr:a,al\n" \
158 "tn tmpnoise (3 Thresholds) Temporal Noise Reducer\n" \
159 " 1. <= 2. <= 3. larger -> stronger filtering\n" \
160 "fq forceQuant <quantizer> Force quantizer\n"
165 #define ENC_CFG_PREFIX "sout-ffmpeg-"
167 #define ENC_KEYINT_TEXT N_( "Ratio of key frames" )
168 #define ENC_KEYINT_LONGTEXT N_( "Allows you to specify the number of frames " \
169 "that will be coded for one key frame." )
171 #define ENC_BFRAMES_TEXT N_( "Ratio of B frames" )
172 #define ENC_BFRAMES_LONGTEXT N_( "Allows you to specify the number of " \
173 "B frames that will be coded between two reference frames." )
175 #define ENC_VT_TEXT N_( "Video bitrate tolerance" )
176 #define ENC_VT_LONGTEXT N_( "Allows you to specify the video bitrate " \
177 "tolerance in kbit/s." )
179 #define ENC_INTERLACE_TEXT N_( "Enable interlaced encoding" )
180 #define ENC_INTERLACE_LONGTEXT N_( "Allows you to enable dedicated " \
181 "algorithms for interlaced frames." )
183 #define ENC_PRE_ME_TEXT N_( "Enable pre motion estimation" )
184 #define ENC_PRE_ME_LONGTEXT N_( "Allows you to enable the pre motion " \
187 #define ENC_RC_STRICT_TEXT N_( "Enable strict rate control" )
188 #define ENC_RC_STRICT_LONGTEXT N_( "Allows you to enable the strict rate " \
189 "control algorithm." )
191 #define ENC_RC_BUF_TEXT N_( "Rate control buffer size" )
192 #define ENC_RC_BUF_LONGTEXT N_( "Allows you to specify the rate control " \
195 #define ENC_RC_BUF_AGGR_TEXT N_( "Rate control buffer aggressiveness" )
196 #define ENC_RC_BUF_AGGR_LONGTEXT N_( "Allows you to specify the rate control "\
197 "buffer aggressiveness." )
199 #define ENC_IQUANT_FACTOR_TEXT N_( "I quantization factor" )
200 #define ENC_IQUANT_FACTOR_LONGTEXT N_( "Allows you to specify the " \
201 "quantization factor of I frames, compared with P frames (for instance " \
202 "1.0 => same qscale for I and P frames)." )
204 #define ENC_NOISE_RED_TEXT N_( "Noise reduction" )
205 #define ENC_NOISE_RED_LONGTEXT N_( "Allows you to enable a simple noise " \
206 "reduction algorithm to lower the encoding length and bitrate, at the " \
207 "expense of lower quality frames." )
209 #define ENC_MPEG4_MATRIX_TEXT N_( "Enable MPEG4 quantization matrix" )
210 #define ENC_MPEG4_MATRIX_LONGTEXT N_( "Allows you to use the MPEG4 " \
211 "quantization matrix for mpeg2 encoding. This generally yields a " \
212 "better looking picture, while still retaining the compatibility with " \
213 "standard MPEG-2 decoders.")
215 #define ENC_HQ_TEXT N_( "Quality level" )
216 #define ENC_HQ_LONGTEXT N_( "Allows you to specify the quality level " \
217 "for the encoding of motions vectors (this can slow down the encoding " \
220 #define ENC_HURRYUP_TEXT N_( "Hurry up" )
221 #define ENC_HURRYUP_LONGTEXT N_( "Allows you to specify if the encoder " \
222 "should make on-the-fly quality tradeoffs if your CPU can't keep up with " \
223 "the encoding rate. It will disable trellis quantization, then the rate " \
224 "distortion of motion vectors (hq), and raise the noise reduction " \
225 "threshold to ease the encoder's task." )
227 #define ENC_QMIN_TEXT N_( "Minimum video quantizer scale" )
228 #define ENC_QMIN_LONGTEXT N_( "Allows you to specify the minimum video " \
231 #define ENC_QMAX_TEXT N_( "Maximum video quantizer scale" )
232 #define ENC_QMAX_LONGTEXT N_( "Allows you to specify the maximum video " \
235 #define ENC_TRELLIS_TEXT N_( "Enable trellis quantization" )
236 #define ENC_TRELLIS_LONGTEXT N_( "Allows you to enable trellis " \
237 "quantization (rate distortion for block coefficients)." )
239 #define ENC_QSCALE_TEXT N_( "Use fixed video quantizer scale" )
240 #define ENC_QSCALE_LONGTEXT N_( "Allows you to specify a fixed video " \
241 "quantizer scale for VBR encoding (accepted values: 0.01 to 255.0)." )
243 #define ENC_STRICT_TEXT N_( "Strict standard compliance" )
244 #define ENC_STRICT_LONGTEXT N_( "Allows you to force a strict standard " \
245 "compliance when encoding (accepted values: -1, 0, 1)." )