/***************************************************************************** * avcodec.h: decoder and encoder using libavcodec ***************************************************************************** * Copyright (C) 2001-2008 the VideoLAN team * $Id$ * * Authors: Laurent Aimar * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ picture_t * DecodeVideo ( decoder_t *, block_t ** ); aout_buffer_t * DecodeAudio( decoder_t *, block_t ** ); /* Video encoder module */ int OpenEncoder ( vlc_object_t * ); void CloseEncoder( vlc_object_t * ); /* Audio encoder module */ int OpenAudioEncoder ( vlc_object_t * ); void CloseAudioEncoder( vlc_object_t * ); /* Deinterlace video filter module */ int OpenDeinterlace( vlc_object_t * ); void CloseDeinterlace( vlc_object_t * ); void InitLibavcodec( vlc_object_t *p_object ); /* Video Decoder */ int InitVideoDec( decoder_t *p_dec, AVCodecContext *p_context, AVCodec *p_codec, int i_codec_id, const char *psz_namecodec ); void EndVideoDec( decoder_t *p_dec ); /* Audio Decoder */ int InitAudioDec( decoder_t *p_dec, AVCodecContext *p_context, AVCodec *p_codec, int i_codec_id, const char *psz_namecodec ); void EndAudioDec( decoder_t *p_dec ); /* Avcodec global lock */ extern vlc_mutex_t avcodec_lock; /***************************************************************************** * Module descriptor help strings *****************************************************************************/ #define DR_TEXT N_("Direct rendering") /* FIXME Does somebody who knows what it does, explain */ #define DR_LONGTEXT N_("Direct rendering") #define ERROR_TEXT N_("Error resilience") #define ERROR_LONGTEXT N_( \ "Ffmpeg can do error resilience.\n" \ "However, with a buggy encoder (such as the ISO MPEG-4 encoder from M$) " \ "this can produce a lot of errors.\n" \ "Valid values range from 0 to 4 (0 disables all errors resilience).") #define BUGS_TEXT N_("Workaround bugs") #define BUGS_LONGTEXT N_( \ "Try to fix some bugs:\n" \ "1 autodetect\n" \ "2 old msmpeg4\n" \ "4 xvid interlaced\n" \ "8 ump4 \n" \ "16 no padding\n" \ "32 ac vlc\n" \ "64 Qpel chroma.\n" \ "This must be the sum of the values. For example, to fix \"ac vlc\" and " \ "\"ump4\", enter 40.") #define HURRYUP_TEXT N_("Hurry up") #define HURRYUP_LONGTEXT N_( \ "The decoder can partially decode or skip frame(s) " \ "when there is not enough time. It's useful with low CPU power " \ "but it can produce distorted pictures.") #define SKIP_FRAME_TEXT N_("Skip frame (default=0)") #define SKIP_FRAME_LONGTEXT N_( \ "Force skipping of frames to speed up decoding " \ "(-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)." ) #define SKIP_IDCT_TEXT N_("Skip idct (default=0)") #define SKIP_IDCT_LONGTEXT N_( \ "Force skipping of idct to speed up decoding for frame types" \ "(-1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames)." ) #define DEBUG_TEXT N_( "Debug mask" ) #define DEBUG_LONGTEXT N_( "Set ffmpeg debug mask" ) /* TODO: Use a predefined list, with 0,1,2,4,7 */ #define VISMV_TEXT N_( "Visualize motion vectors" ) #define VISMV_LONGTEXT N_( \ "You can overlay the motion vectors (arrows showing how the images move) "\ "on the image. This value is a mask, based on these values:\n"\ "1 - visualize forward predicted MVs of P frames\n" \ "2 - visualize forward predicted MVs of B frames\n" \ "4 - visualize backward predicted MVs of B frames\n" \ "To visualize all vectors, the value should be 7." ) #define LOWRES_TEXT N_( "Low resolution decoding" ) #define LOWRES_LONGTEXT N_( "Only decode a low resolution version of " \ "the video. This requires less processing power" ) #define SKIPLOOPF_TEXT N_( "Skip the loop filter for H.264 decoding" ) #define SKIPLOOPF_LONGTEXT N_( "Skipping the loop filter (aka deblocking) " \ "usually has a detrimental effect on quality. However it provides a big " \ "speedup for high definition streams." ) /* * Encoder options */ #define ENC_CFG_PREFIX "sout-ffmpeg-" #define ENC_KEYINT_TEXT N_( "Ratio of key frames" ) #define ENC_KEYINT_LONGTEXT N_( "Number of frames " \ "that will be coded for one key frame." ) #define ENC_BFRAMES_TEXT N_( "Ratio of B frames" ) #define ENC_BFRAMES_LONGTEXT N_( "Number of " \ "B frames that will be coded between two reference frames." ) #define ENC_VT_TEXT N_( "Video bitrate tolerance" ) #define ENC_VT_LONGTEXT N_( "Video bitrate tolerance in kbit/s." ) #define ENC_INTERLACE_TEXT N_( "Interlaced encoding" ) #define ENC_INTERLACE_LONGTEXT N_( "Enable dedicated " \ "algorithms for interlaced frames." ) #define ENC_INTERLACE_ME_TEXT N_( "Interlaced motion estimation" ) #define ENC_INTERLACE_ME_LONGTEXT N_( "Enable interlaced " \ "motion estimation algorithms. This requires more CPU." ) #define ENC_PRE_ME_TEXT N_( "Pre-motion estimation" ) #define ENC_PRE_ME_LONGTEXT N_( "Enable the pre-motion " \ "estimation algorithm.") #define ENC_RC_BUF_TEXT N_( "Rate control buffer size" ) #define ENC_RC_BUF_LONGTEXT N_( "Rate control " \ "buffer size (in kbytes). A bigger buffer will allow for better rate " \ "control, but will cause a delay in the stream." ) #define ENC_RC_BUF_AGGR_TEXT N_( "Rate control buffer aggressiveness" ) #define ENC_RC_BUF_AGGR_LONGTEXT N_( "Rate control "\ "buffer aggressiveness." ) #define ENC_IQUANT_FACTOR_TEXT N_( "I quantization factor" ) #define ENC_IQUANT_FACTOR_LONGTEXT N_( \ "Quantization factor of I frames, compared with P frames (for instance " \ "1.0 => same qscale for I and P frames)." ) #define ENC_NOISE_RED_TEXT N_( "Noise reduction" ) #define ENC_NOISE_RED_LONGTEXT N_( "Enable a simple noise " \ "reduction algorithm to lower the encoding length and bitrate, at the " \ "expense of lower quality frames." ) #define ENC_MPEG4_MATRIX_TEXT N_( "MPEG4 quantization matrix" ) #define ENC_MPEG4_MATRIX_LONGTEXT N_( "Use the MPEG4 " \ "quantization matrix for MPEG2 encoding. This generally yields a " \ "better looking picture, while still retaining the compatibility with " \ "standard MPEG2 decoders.") #define ENC_HQ_TEXT N_( "Quality level" ) #define ENC_HQ_LONGTEXT N_( "Quality level " \ "for the encoding of motions vectors (this can slow down the encoding " \ "very much)." ) #define ENC_HURRYUP_TEXT N_( "Hurry up" ) #define ENC_HURRYUP_LONGTEXT N_( "The encoder " \ "can make on-the-fly quality tradeoffs if your CPU can't keep up with " \ "the encoding rate. It will disable trellis quantization, then the rate " \ "distortion of motion vectors (hq), and raise the noise reduction " \ "threshold to ease the encoder's task." ) #define ENC_QMIN_TEXT N_( "Minimum video quantizer scale" ) #define ENC_QMIN_LONGTEXT N_( "Minimum video " \ "quantizer scale." ) #define ENC_QMAX_TEXT N_( "Maximum video quantizer scale" ) #define ENC_QMAX_LONGTEXT N_( "Maximum video " \ "quantizer scale." ) #define ENC_TRELLIS_TEXT N_( "Trellis quantization" ) #define ENC_TRELLIS_LONGTEXT N_( "Enable trellis " \ "quantization (rate distortion for block coefficients)." ) #define ENC_QSCALE_TEXT N_( "Fixed quantizer scale" ) #define ENC_QSCALE_LONGTEXT N_( "A fixed video " \ "quantizer scale for VBR encoding (accepted values: 0.01 to 255.0)." ) #define ENC_STRICT_TEXT N_( "Strict standard compliance" ) #define ENC_STRICT_LONGTEXT N_( "Force a strict standard " \ "compliance when encoding (accepted values: -1, 0, 1)." ) #define ENC_LUMI_MASKING_TEXT N_( "Luminance masking" ) #define ENC_LUMI_MASKING_LONGTEXT N_( "Raise the quantizer for " \ "very bright macroblocks (default: 0.0)." ) #define ENC_DARK_MASKING_TEXT N_( "Darkness masking" ) #define ENC_DARK_MASKING_LONGTEXT N_( "Raise the quantizer for " \ "very dark macroblocks (default: 0.0)." ) #define ENC_P_MASKING_TEXT N_( "Motion masking" ) #define ENC_P_MASKING_LONGTEXT N_( "Raise the quantizer for " \ "macroblocks with a high temporal complexity (default: 0.0)." ) #define ENC_BORDER_MASKING_TEXT N_( "Border masking" ) #define ENC_BORDER_MASKING_LONGTEXT N_( "Raise the quantizer " \ "for macroblocks at the border of the frame (default: 0.0)." ) #define ENC_LUMA_ELIM_TEXT N_( "Luminance elimination" ) #define ENC_LUMA_ELIM_LONGTEXT N_( "Eliminates luminance blocks when " \ "the PSNR isn't much changed (default: 0.0). The H264 specification " \ "recommends -4." ) #define ENC_CHROMA_ELIM_TEXT N_( "Chrominance elimination" ) #define ENC_CHROMA_ELIM_LONGTEXT N_( "Eliminates chrominance blocks when " \ "the PSNR isn't much changed (default: 0.0). The H264 specification " \ "recommends 7." ) #if LIBAVCODEC_VERSION_INT >= ((51<<16)+(40<<8)+4) #define ENC_PROFILE_TEXT N_( "Specify AAC audio profile to use" ) #define ENC_PROFILE_LONGTEXT N_( "Specify the AAC audio profile to use " \ "for encoding the audio bitstream. It takes the following options: " \ "main, low, ssr (not supported) and ltp (default: main)" ) #endif #define FFMPEG_COMMON_MEMBERS \ int i_cat; \ int i_codec_id; \ const char *psz_namecodec; \ AVCodecContext *p_context; \ AVCodec *p_codec;