diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/avcodec.h')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/avcodec.h | 866 |
1 files changed, 625 insertions, 241 deletions
diff --git a/contrib/ffmpeg/libavcodec/avcodec.h b/contrib/ffmpeg/libavcodec/avcodec.h index da063b562..1d8427a9d 100644 --- a/contrib/ffmpeg/libavcodec/avcodec.h +++ b/contrib/ffmpeg/libavcodec/avcodec.h @@ -37,16 +37,22 @@ extern "C" { #define AV_STRINGIFY(s) AV_TOSTRING(s) #define AV_TOSTRING(s) #s -#define LIBAVCODEC_VERSION_INT ((51<<16)+(25<<8)+0) -#define LIBAVCODEC_VERSION 51.25.0 +#define LIBAVCODEC_VERSION_INT ((51<<16)+(40<<8)+2) +#define LIBAVCODEC_VERSION 51.40.2 #define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT #define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) -#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000) +#define AV_NOPTS_VALUE INT64_C(0x8000000000000000) #define AV_TIME_BASE 1000000 #define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE} +/** + * + * if you add a codec id to this list add it so that + * 1. no value of a existing codec id changes (that would break ABI) + * 2. closest to similar codecs + */ enum CodecID { CODEC_ID_NONE, CODEC_ID_MPEG1VIDEO, @@ -149,6 +155,10 @@ enum CodecID { CODEC_ID_TIERTEXSEQVIDEO, CODEC_ID_TIFF, CODEC_ID_GIF, + CODEC_ID_FFH264, + CODEC_ID_DXA, + CODEC_ID_DNXHD, + CODEC_ID_THP, /* various pcm "codecs" */ CODEC_ID_PCM_S16LE= 0x10000, @@ -226,7 +236,7 @@ enum CodecID { CODEC_ID_SHORTEN, CODEC_ID_ALAC, CODEC_ID_WESTWOOD_SND1, - CODEC_ID_GSM, + CODEC_ID_GSM, /* As in Berlin toast format */ CODEC_ID_QDM2, CODEC_ID_COOK, CODEC_ID_TRUESPEECH, @@ -236,6 +246,9 @@ enum CodecID { CODEC_ID_WAVPACK, CODEC_ID_DSICINAUDIO, CODEC_ID_IMC, + CODEC_ID_MUSEPACK7, + CODEC_ID_MLP, + CODEC_ID_GSM_MS, /* As found in WAV */ /* subtitle codecs */ CODEC_ID_DVD_SUBTITLE= 0x17000, @@ -245,8 +258,11 @@ enum CodecID { stream (only used by libavformat) */ }; +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) /* CODEC_ID_MP3LAME is absolete */ #define CODEC_ID_MP3LAME CODEC_ID_MP3 +#define CODEC_ID_MPEG4AAC CODEC_ID_AAC +#endif enum CodecType { CODEC_TYPE_UNKNOWN = -1, @@ -254,6 +270,7 @@ enum CodecType { CODEC_TYPE_AUDIO, CODEC_TYPE_DATA, CODEC_TYPE_SUBTITLE, + CODEC_TYPE_NB }; /* currently unused, may be used if 24/32 bits samples ever supported */ @@ -328,7 +345,7 @@ typedef struct RcOverride{ #define CODEC_FLAG_GMC 0x0020 ///< use GMC #define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0> #define CODEC_FLAG_PART 0x0080 ///< use data partitioning -/* parent program gurantees that the input for b-frame containing streams is not written to +/* parent program guarantees that the input for b-frame containing streams is not written to for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */ #define CODEC_FLAG_INPUT_PRESERVED 0x0100 #define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode @@ -347,7 +364,9 @@ typedef struct RcOverride{ #define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe #define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct) /* Fx : Flag for h263+ extra options */ +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) #define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this) +#endif #define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction #define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector #define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp @@ -365,7 +384,7 @@ typedef struct RcOverride{ #define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< place global headers at every keyframe instead of in extradata #define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow b-frames to be used as references #define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for b-frames -#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 multiple references per partition +#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock #define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform #define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip #define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters @@ -373,11 +392,14 @@ typedef struct RcOverride{ #define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< use MPEG-2 intra VLC table #define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC) #define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format +#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skiping +#define CODEC_FLAG2_CHUNKS 0x00008000 ///< input bitstream might be truncated at a packet boundaries instead of only at frame boundaries +#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< use MPEG-2 non linear quantizer /* Unsupported options : * Syntax Arithmetic coding (SAC) * Reference Picture Selection - * Independant Segment Decoding */ + * Independent Segment Decoding */ /* /Fx */ /* codec capabilities */ @@ -395,7 +417,7 @@ typedef struct RcOverride{ #define CODEC_CAP_HWACCEL 0x0010 /** * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data. - * if this is not set, the codec is guranteed to never be feeded with NULL data + * if this is not set, the codec is guaranteed to never be feeded with NULL data */ #define CODEC_CAP_DELAY 0x0020 /** @@ -728,7 +750,10 @@ typedef struct AVCodecContext { /** * some codecs needs additionnal format info. It is stored here - * - encoding: set by user. + * if any muxer uses this then ALL demuxers/parsers AND encoders for the specific codec MUST set it correctly + * too otherwise stream copy breaks + * in general use of this field by muxers is not recommanded + * - encoding: set by lavc. * - decoding: set by lavc. (FIXME is this ok?) */ int sub_id; @@ -862,7 +887,7 @@ typedef struct AVCodecContext { int qmax; /** - * maximum quantizer difference etween frames. + * maximum quantizer difference between frames. * - encoding: set by user. * - decoding: unused */ @@ -891,9 +916,9 @@ typedef struct AVCodecContext { /** * hurry up amount. - * deprecated in favor of skip_idct and skip_frame * - encoding: unused * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header + * @deprecated Deprecated in favor of skip_idct and skip_frame. */ int hurry_up; @@ -901,8 +926,10 @@ typedef struct AVCodecContext { void *priv_data; +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) /* unused, FIXME remove*/ int rtp_mode; +#endif int rtp_payload_size; /* The size of the RTP payload: the coder will */ /* do it's best to deliver a chunk with size */ @@ -951,6 +978,13 @@ typedef struct AVCodecContext { /** * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). * this is used to workaround some encoder bugs + * a demuxer should set this to what is stored in the field used to identify the codec + * if there are mutiple such fields in a container then the demuxer should choose the one + * which maximizes the information about the used codec + * if the codec tag field in a container is larger then 32bit then the demxuer should + * remap the longer id to 32bit with a table or other structure alternatively a new + * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated + * first * - encoding: set by user, if not then the default based on codec_id will be used * - decoding: set by user, will be converted to upper case by lavc during init */ @@ -1231,6 +1265,7 @@ typedef struct AVCodecContext { #define FF_IDCT_XVIDMMX 14 #define FF_IDCT_CAVS 15 #define FF_IDCT_SIMPLEARMV5TE 16 +#define FF_IDCT_SIMPLEARMV6 17 /** * slice count. @@ -1698,14 +1733,14 @@ typedef struct AVCodecContext { /** * Thread count. - * is used to decide how many independant tasks should be passed to execute() + * is used to decide how many independent tasks should be passed to execute() * - encoding: set by user * - decoding: set by user */ int thread_count; /** - * the codec may call this to execute several independant things. it will return only after + * the codec may call this to execute several independent things. it will return only after * finishing all tasks, the user may replace this with some multithreaded implementation, the * default implementation will execute the parts serially * @param count the number of things to execute @@ -2083,9 +2118,6 @@ typedef struct AVCodec { int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, uint8_t *buf, int buf_size); int capabilities; -#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0) - void *dummy; // FIXME remove next time we break binary compatibility -#endif struct AVCodec *next; void (*flush)(AVCodecContext *); const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0} @@ -2143,240 +2175,254 @@ typedef struct AVSubtitle { } AVSubtitle; extern AVCodec ac3_encoder; -extern AVCodec mp2_encoder; -extern AVCodec mp3lame_encoder; -extern AVCodec oggvorbis_encoder; +extern AVCodec amr_nb_encoder; +extern AVCodec amr_wb_encoder; +extern AVCodec asv1_encoder; +extern AVCodec asv2_encoder; +extern AVCodec bmp_encoder; +extern AVCodec dvvideo_encoder; extern AVCodec faac_encoder; +extern AVCodec ffv1_encoder; +extern AVCodec ffvhuff_encoder; extern AVCodec flac_encoder; +extern AVCodec flashsv_encoder; +extern AVCodec flv_encoder; extern AVCodec gif_encoder; -extern AVCodec xvid_encoder; -extern AVCodec mpeg1video_encoder; -extern AVCodec mpeg2video_encoder; extern AVCodec h261_encoder; extern AVCodec h263_encoder; extern AVCodec h263p_encoder; -extern AVCodec flv_encoder; -extern AVCodec rv10_encoder; -extern AVCodec rv20_encoder; -extern AVCodec dvvideo_encoder; -extern AVCodec mjpeg_encoder; -extern AVCodec ljpeg_encoder; +extern AVCodec h264_encoder; +extern AVCodec huffyuv_encoder; extern AVCodec jpegls_encoder; -extern AVCodec png_encoder; -extern AVCodec ppm_encoder; -extern AVCodec pgm_encoder; -extern AVCodec pgmyuv_encoder; -extern AVCodec pbm_encoder; -extern AVCodec pam_encoder; +extern AVCodec libgsm_encoder; +extern AVCodec libgsm_ms_encoder; +extern AVCodec libtheora_encoder; +extern AVCodec ljpeg_encoder; +extern AVCodec mdec_encoder; +extern AVCodec mjpeg_encoder; +extern AVCodec mp2_encoder; +extern AVCodec mp3lame_encoder; +extern AVCodec mpeg1video_encoder; +extern AVCodec mpeg2video_encoder; extern AVCodec mpeg4_encoder; extern AVCodec msmpeg4v1_encoder; extern AVCodec msmpeg4v2_encoder; extern AVCodec msmpeg4v3_encoder; -extern AVCodec wmv1_encoder; -extern AVCodec wmv2_encoder; -extern AVCodec huffyuv_encoder; -extern AVCodec ffvhuff_encoder; -extern AVCodec h264_encoder; -extern AVCodec asv1_encoder; -extern AVCodec asv2_encoder; -extern AVCodec vcr1_encoder; -extern AVCodec ffv1_encoder; +extern AVCodec oggvorbis_encoder; +extern AVCodec pam_encoder; +extern AVCodec pbm_encoder; +extern AVCodec pgm_encoder; +extern AVCodec pgmyuv_encoder; +extern AVCodec png_encoder; +extern AVCodec ppm_encoder; +extern AVCodec rv10_encoder; +extern AVCodec rv20_encoder; extern AVCodec snow_encoder; -extern AVCodec vorbis_encoder; -extern AVCodec mdec_encoder; -extern AVCodec zlib_encoder; extern AVCodec sonic_encoder; extern AVCodec sonic_ls_encoder; extern AVCodec svq1_encoder; +extern AVCodec targa_encoder; +extern AVCodec vcr1_encoder; +extern AVCodec vorbis_encoder; +extern AVCodec wmav1_encoder; +extern AVCodec wmav2_encoder; +extern AVCodec wmv1_encoder; +extern AVCodec wmv2_encoder; extern AVCodec x264_encoder; +extern AVCodec xvid_encoder; +extern AVCodec zlib_encoder; +extern AVCodec zmbv_encoder; +extern AVCodec aac_decoder; +extern AVCodec aasc_decoder; +extern AVCodec alac_decoder; +extern AVCodec amr_nb_decoder; +extern AVCodec amr_wb_decoder; +extern AVCodec asv1_decoder; +extern AVCodec asv2_decoder; +extern AVCodec avs_decoder; +extern AVCodec bmp_decoder; +extern AVCodec cavs_decoder; +extern AVCodec cinepak_decoder; +extern AVCodec cljr_decoder; +extern AVCodec cook_decoder; +extern AVCodec cscd_decoder; +extern AVCodec cyuv_decoder; +extern AVCodec dca_decoder; +extern AVCodec dnxhd_decoder; +extern AVCodec dsicinaudio_decoder; +extern AVCodec dsicinvideo_decoder; +extern AVCodec dvvideo_decoder; +extern AVCodec dxa_decoder; +extern AVCodec eightbps_decoder; +extern AVCodec ffv1_decoder; +extern AVCodec ffvhuff_decoder; +extern AVCodec flac_decoder; +extern AVCodec flashsv_decoder; +extern AVCodec flic_decoder; +extern AVCodec flv_decoder; +extern AVCodec fourxm_decoder; +extern AVCodec fraps_decoder; extern AVCodec gif_decoder; -extern AVCodec h263_decoder; extern AVCodec h261_decoder; -extern AVCodec mpeg4_decoder; -extern AVCodec msmpeg4v1_decoder; -extern AVCodec msmpeg4v2_decoder; -extern AVCodec msmpeg4v3_decoder; -extern AVCodec wmv1_decoder; -extern AVCodec wmv2_decoder; -extern AVCodec vc1_decoder; -extern AVCodec wmv3_decoder; -extern AVCodec mpeg1video_decoder; -extern AVCodec mpeg2video_decoder; -extern AVCodec mpegvideo_decoder; -extern AVCodec mpeg_xvmc_decoder; +extern AVCodec h263_decoder; extern AVCodec h263i_decoder; -extern AVCodec flv_decoder; -extern AVCodec rv10_decoder; -extern AVCodec rv20_decoder; -extern AVCodec rv30_decoder; -extern AVCodec rv40_decoder; -extern AVCodec svq1_decoder; -extern AVCodec svq3_decoder; -extern AVCodec dvvideo_decoder; -extern AVCodec wmav1_decoder; -extern AVCodec wmav2_decoder; +extern AVCodec h264_decoder; +extern AVCodec huffyuv_decoder; +extern AVCodec idcin_decoder; +extern AVCodec imc_decoder; +extern AVCodec indeo2_decoder; +extern AVCodec indeo3_decoder; +extern AVCodec interplay_dpcm_decoder; +extern AVCodec interplay_video_decoder; +extern AVCodec kmvc_decoder; +extern AVCodec libgsm_decoder; +extern AVCodec libgsm_ms_decoder; +extern AVCodec loco_decoder; +extern AVCodec mace3_decoder; +extern AVCodec mace6_decoder; +extern AVCodec mdec_decoder; extern AVCodec mjpeg_decoder; extern AVCodec mjpegb_decoder; -extern AVCodec sp5x_decoder; -extern AVCodec png_decoder; +extern AVCodec mmvideo_decoder; extern AVCodec mp2_decoder; extern AVCodec mp3_decoder; extern AVCodec mp3adu_decoder; extern AVCodec mp3on4_decoder; -extern AVCodec qdm2_decoder; -extern AVCodec cook_decoder; -extern AVCodec truespeech_decoder; -extern AVCodec tta_decoder; -extern AVCodec mace3_decoder; -extern AVCodec mace6_decoder; -extern AVCodec huffyuv_decoder; -extern AVCodec ffvhuff_decoder; -extern AVCodec oggvorbis_decoder; -extern AVCodec cyuv_decoder; -extern AVCodec h264_decoder; -extern AVCodec indeo3_decoder; -extern AVCodec vp3_decoder; -extern AVCodec theora_decoder; -extern AVCodec vp5_decoder; -extern AVCodec vp6_decoder; -extern AVCodec vp6f_decoder; -extern AVCodec amr_nb_decoder; -extern AVCodec amr_nb_encoder; -extern AVCodec amr_wb_encoder; -extern AVCodec amr_wb_decoder; -extern AVCodec aac_decoder; +extern AVCodec mpc7_decoder; +extern AVCodec mpeg1video_decoder; +extern AVCodec mpeg2video_decoder; +extern AVCodec mpeg4_decoder; extern AVCodec mpeg4aac_decoder; -extern AVCodec asv1_decoder; -extern AVCodec asv2_decoder; -extern AVCodec vcr1_decoder; -extern AVCodec cljr_decoder; -extern AVCodec ffv1_decoder; -extern AVCodec snow_decoder; -extern AVCodec fourxm_decoder; -extern AVCodec mdec_decoder; -extern AVCodec roq_decoder; -extern AVCodec interplay_video_decoder; -extern AVCodec xan_wc3_decoder; -extern AVCodec rpza_decoder; -extern AVCodec cinepak_decoder; +extern AVCodec mpeg_xvmc_decoder; +extern AVCodec mpegvideo_decoder; +extern AVCodec msmpeg4v1_decoder; +extern AVCodec msmpeg4v2_decoder; +extern AVCodec msmpeg4v3_decoder; extern AVCodec msrle_decoder; extern AVCodec msvideo1_decoder; -extern AVCodec vqa_decoder; -extern AVCodec idcin_decoder; -extern AVCodec eightbps_decoder; -extern AVCodec smc_decoder; -extern AVCodec flic_decoder; -extern AVCodec vmdvideo_decoder; -extern AVCodec vmdaudio_decoder; -extern AVCodec truemotion1_decoder; -extern AVCodec truemotion2_decoder; extern AVCodec mszh_decoder; -extern AVCodec zlib_decoder; +extern AVCodec nuv_decoder; +extern AVCodec oggvorbis_decoder; +extern AVCodec png_decoder; +extern AVCodec qdm2_decoder; +extern AVCodec qdraw_decoder; +extern AVCodec qpeg_decoder; +extern AVCodec qtrle_decoder; extern AVCodec ra_144_decoder; extern AVCodec ra_288_decoder; +extern AVCodec roq_decoder; extern AVCodec roq_dpcm_decoder; -extern AVCodec interplay_dpcm_decoder; -extern AVCodec xan_dpcm_decoder; +extern AVCodec rpza_decoder; +extern AVCodec rv10_decoder; +extern AVCodec rv20_decoder; +extern AVCodec rv30_decoder; +extern AVCodec rv40_decoder; +extern AVCodec shorten_decoder; +extern AVCodec smackaud_decoder; +extern AVCodec smacker_decoder; +extern AVCodec smc_decoder; +extern AVCodec snow_decoder; extern AVCodec sol_dpcm_decoder; extern AVCodec sonic_decoder; -extern AVCodec qtrle_decoder; -extern AVCodec flac_decoder; +extern AVCodec sp5x_decoder; +extern AVCodec svq1_decoder; +extern AVCodec svq3_decoder; +extern AVCodec targa_decoder; +extern AVCodec theora_decoder; +extern AVCodec thp_decoder; +extern AVCodec tiertexseqvideo_decoder; +extern AVCodec tiff_decoder; +extern AVCodec truemotion1_decoder; +extern AVCodec truemotion2_decoder; +extern AVCodec truespeech_decoder; extern AVCodec tscc_decoder; -extern AVCodec cscd_decoder; -extern AVCodec nuv_decoder; +extern AVCodec tta_decoder; extern AVCodec ulti_decoder; -extern AVCodec qdraw_decoder; -extern AVCodec xl_decoder; -extern AVCodec qpeg_decoder; -extern AVCodec shorten_decoder; -extern AVCodec loco_decoder; +extern AVCodec vc1_decoder; +extern AVCodec vcr1_decoder; +extern AVCodec vmdaudio_decoder; +extern AVCodec vmdvideo_decoder; +extern AVCodec vmnc_decoder; +extern AVCodec vorbis_decoder; +extern AVCodec vp3_decoder; +extern AVCodec vp5_decoder; +extern AVCodec vp6_decoder; +extern AVCodec vp6f_decoder; +extern AVCodec vqa_decoder; +extern AVCodec wavpack_decoder; +extern AVCodec wmav1_decoder; +extern AVCodec wmav2_decoder; +extern AVCodec wmv1_decoder; +extern AVCodec wmv2_decoder; +extern AVCodec wmv3_decoder; extern AVCodec wnv1_decoder; -extern AVCodec aasc_decoder; -extern AVCodec alac_decoder; extern AVCodec ws_snd1_decoder; -extern AVCodec indeo2_decoder; -extern AVCodec vorbis_decoder; -extern AVCodec fraps_decoder; -extern AVCodec libgsm_encoder; -extern AVCodec libgsm_decoder; -extern AVCodec bmp_decoder; -extern AVCodec mmvideo_decoder; +extern AVCodec xan_dpcm_decoder; +extern AVCodec xan_wc3_decoder; +extern AVCodec xl_decoder; +extern AVCodec zlib_decoder; extern AVCodec zmbv_decoder; -extern AVCodec avs_decoder; -extern AVCodec smacker_decoder; -extern AVCodec smackaud_decoder; -extern AVCodec kmvc_decoder; -extern AVCodec flashsv_decoder; -extern AVCodec cavs_decoder; -extern AVCodec vmnc_decoder; -extern AVCodec wavpack_decoder; -extern AVCodec targa_decoder; -extern AVCodec dsicinvideo_decoder; -extern AVCodec dsicinaudio_decoder; -extern AVCodec tiertexseqvideo_decoder; -extern AVCodec tiff_decoder; -extern AVCodec imc_decoder; /* pcm codecs */ #define PCM_CODEC(id, name) \ extern AVCodec name ## _decoder; \ extern AVCodec name ## _encoder -PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le); -PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be); -PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le); -PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be); -PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le); -PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be); -PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le); -PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be); +PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw); +PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw); +PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8); +PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be); +PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le); +PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be); PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud); -PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le); -PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be); -PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le); -PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be); -PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8); -PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8); -PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw); -PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw); +PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le); +PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be); +PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le); +PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8); +PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be); +PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le); +PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be); +PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le); +PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be); +PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le); /* adpcm codecs */ -PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt); -PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav); +PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm); +PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx); +PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct); +PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea); +PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726); PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3); PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4); -PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws); -PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg); -PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms); -PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm); -PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa); -PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx); -PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea); -PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726); -PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct); -PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf); -PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha); -PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4); -PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3); +PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt); +PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav); +PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws); +PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms); PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2); +PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3); +PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4); +PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg); +PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf); +PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa); +PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha); #undef PCM_CODEC /* dummy raw video codec */ -extern AVCodec rawvideo_encoder; extern AVCodec rawvideo_decoder; +extern AVCodec rawvideo_encoder; /* the following codecs use external GPL libs */ -extern AVCodec ac3_decoder; extern AVCodec dts_decoder; +extern AVCodec liba52_decoder; /* subtitles */ -extern AVCodec dvdsub_encoder; -extern AVCodec dvdsub_decoder; -extern AVCodec dvbsub_encoder; extern AVCodec dvbsub_decoder; +extern AVCodec dvbsub_encoder; +extern AVCodec dvdsub_decoder; +extern AVCodec dvdsub_encoder; /* resample.c */ @@ -2395,16 +2441,17 @@ int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consum void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance); void av_resample_close(struct AVResampleContext *c); +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) /* YUV420 format is assumed ! */ -struct ImgReSampleContext; +struct ImgReSampleContext attribute_deprecated; -typedef struct ImgReSampleContext ImgReSampleContext; +typedef struct ImgReSampleContext ImgReSampleContext attribute_deprecated; -ImgReSampleContext *img_resample_init(int output_width, int output_height, +attribute_deprecated ImgReSampleContext *img_resample_init(int output_width, int output_height, int input_width, int input_height); -ImgReSampleContext *img_resample_full_init(int owidth, int oheight, +attribute_deprecated ImgReSampleContext *img_resample_full_init(int owidth, int oheight, int iwidth, int iheight, int topBand, int bottomBand, int leftBand, int rightBand, @@ -2412,10 +2459,12 @@ ImgReSampleContext *img_resample_full_init(int owidth, int oheight, int padleft, int padright); -void img_resample(ImgReSampleContext *s, +attribute_deprecated void img_resample(ImgReSampleContext *s, AVPicture *output, const AVPicture *input); -void img_resample_close(ImgReSampleContext *s); +attribute_deprecated void img_resample_close(ImgReSampleContext *s); + +#endif /** * Allocate memory for a picture. Call avpicture_free to free it. @@ -2424,17 +2473,47 @@ void img_resample_close(ImgReSampleContext *s); * @param pix_fmt the format of the picture. * @param width the width of the picture. * @param height the height of the picture. - * @return 0 if successful, -1 if not. + * @return Zero if successful, a negative value if not. */ int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height); -/* Free a picture previously allocated by avpicture_alloc. */ +/** + * Free a picture previously allocated by avpicture_alloc(). + * + * @param picture The AVPicture to be freed. + */ void avpicture_free(AVPicture *picture); +/** + * Fill in AVPicture's fields. + * The fields of the given AVPicture are filled in by using the 'ptr' address + * which points to the image data buffer. Depending on the specified picture + * format, one or multiple image data pointers and line sizes will be set. + * If a planar format is specified, several pointers will be set pointing to + * the different picture planes and the line sizes of the different planes + * will be stored in the lines_sizes array. + * + * @param picture AVPicture who's fields are to be filled in + * @param ptr Buffer which will contain or contains the actual image data + * @param pix_fmt The format in which the picture data is stored + * @param width The width of the image in pixels + * @param height The height of the image in pixels + * @return Size of the image data in bytes. + */ int avpicture_fill(AVPicture *picture, uint8_t *ptr, int pix_fmt, int width, int height); int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height, unsigned char *dest, int dest_size); + +/** + * Calculate the size in bytes that a picture of the given width and height + * would occupy if stored in the given picture format. + * + * @param pix_fmt The given picture format + * @param width The width of the image + * @param height The height of the image + * @return Image data size in bytes + */ int avpicture_get_size(int pix_fmt, int width, int height); void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift); const char *avcodec_get_pix_fmt_name(int pix_fmt); @@ -2442,29 +2521,77 @@ void avcodec_set_dimensions(AVCodecContext *s, int width, int height); enum PixelFormat avcodec_get_pix_fmt(const char* name); unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p); -#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */ -#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */ -#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */ -#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */ -#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */ -#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */ +#define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */ +#define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */ +#define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */ +#define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */ +#define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */ +#define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */ +/** + * Computes what kind of losses will occur when converting from one specific + * pixel format to another. + * When converting from one pixel format to another, information loss may occur. + * For example, when converting from RGB24 to GRAY, the color information will + * be lost. Similarly, other losses occur when converting from some formats to + * other formats. These losses can involve loss of chroma, but also loss of + * resolution, loss of color depth, loss due to the color space conversion, loss + * of the alpha bits or loss due to color quantization. + * avcodec_get_fix_fmt_loss() informs you on the various types of losses which + * will occur when converting from one pixel format to another. + * + * @param[in] dst_pix_fmt Destination pixel format. + * @param[in] src_pix_fmt Source pixel format. + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @return Combination of flags informing you what kind of losses will occur. + */ int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt, int has_alpha); + +/** + * Finds the best pixel format to convert to given a certain source pixel + * format. When converting from one pixel format to another, information loss + * may occur. For example, when converting from RGB24 to GRAY, the color + * information will be lost. Similarly, other losses occur when converting from + * some formats to other formats. avcodec_find_best_pix_fmt() searches which of + * the given pixel formats should be used to undergo the least amount of losses. + * The pixel formats from which it choses one, are determined by the + * \p pix_fmt_mask parameter. + * + * @code + * src_pix_fmt = PIX_FMT_YUV420P; + * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24); + * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss); + * @endcode + * + * @param[in] pix_fmt_mask Bitmask determining which pixel format to choose from. + * @param[in] src_pix_fmt Source pixel format. + * @param[in] has_alpha Whether the source pixel format alpha channel is used. + * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. + * @return The best pixel format to convert to or -1 if none was found. + */ int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt, int has_alpha, int *loss_ptr); #define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */ #define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */ + +/** + * Tell if an image really has transparent alpha values. + * @return ored mask of FF_ALPHA_xxx constants + */ int img_get_alpha_info(const AVPicture *src, int pix_fmt, int width, int height); +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) /* convert among pixel formats */ -int img_convert(AVPicture *dst, int dst_pix_fmt, +attribute_deprecated int img_convert(AVPicture *dst, int dst_pix_fmt, const AVPicture *src, int pix_fmt, int width, int height); +#endif /* deinterlace a picture */ +/* deinterlace - if not supported return -1 */ int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, int pix_fmt, int width, int height); @@ -2476,24 +2603,103 @@ extern AVCodec *first_avcodec; unsigned avcodec_version(void); /* returns LIBAVCODEC_BUILD constant */ unsigned avcodec_build(void); + +/** + * Initializes libavcodec. + * + * @warning This function \e must be called before any other libavcodec + * function. + */ void avcodec_init(void); void register_avcodec(AVCodec *format); + +/** + * Finds an encoder with a matching codec ID. + * + * @param id CodecID of the requested encoder. + * @return An encoder if one was found, NULL otherwise. + */ AVCodec *avcodec_find_encoder(enum CodecID id); + +/** + * Finds an encoder with the specified name. + * + * @param name Name of the requested encoder. + * @return An encoder if one was found, NULL otherwise. + */ AVCodec *avcodec_find_encoder_by_name(const char *name); + +/** + * Finds a decoder with a matching codec ID. + * + * @param id CodecID of the requested decoder. + * @return A decoder if one was found, NULL otherwise. + */ AVCodec *avcodec_find_decoder(enum CodecID id); + +/** + * Finds an decoder with the specified name. + * + * @param name Name of the requested decoder. + * @return A decoder if one was found, NULL otherwise. + */ AVCodec *avcodec_find_decoder_by_name(const char *name); void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode); +/** + * Sets the fields of the given AVCodecContext to default values. + * + * @param s The AVCodecContext of which the fields should be set to default values. + */ void avcodec_get_context_defaults(AVCodecContext *s); + +/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! + * we WILL change its arguments and name a few times! */ +void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType); + +/** + * Allocates an AVCodecContext and sets its fields to default values. The + * resulting struct can be deallocated by simply calling av_free(). + * + * @return An AVCodecContext filled with default values or NULL on failure. + * @see avcodec_get_context_defaults + */ AVCodecContext *avcodec_alloc_context(void); + +/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! + * we WILL change its arguments and name a few times! */ +AVCodecContext *avcodec_alloc_context2(enum CodecType); + +/** + * Sets the fields of the given AVFrame to default values. + * + * @param pic The AVFrame of which the fields should be set to default values. + */ void avcodec_get_frame_defaults(AVFrame *pic); + +/** + * Allocates an AVFrame and sets its fields to default values. The resulting + * struct can be deallocated by simply calling av_free(). + * + * @return An AVFrame filled with default values or NULL on failure. + * @see avcodec_get_frame_defaults + */ AVFrame *avcodec_alloc_frame(void); int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic); void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic); int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic); void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); + +/** + * Checks if the given dimension of a picture is valid, meaning that all + * bytes of the picture can be addressed with a signed int. + * + * @param[in] w Width of the picture. + * @param[in] h Height of the picture. + * @return Zero if valid, a negative value if invalid. + */ int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h); enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt); @@ -2504,36 +2710,159 @@ int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, v //FIXME func typedef /** - * opens / inits the AVCodecContext. - * not thread save! + * Initializes the AVCodecContext to use the given AVCodec. Prior to using this + * function the context has to be allocated. + * + * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), + * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for + * retrieving a codec. + * + * @warning This function is not thread save! + * + * @code + * codec = avcodec_find_decoder(CODEC_ID_H264); + * if (!codec) + * exit(1); + * + * context = avcodec_alloc_context(); + * + * if (avcodec_open(context, codec) < 0) + * exit(1); + * @endcode + * + * @param avctx The context which will be setup to use the given codec. + * @param codec The codec to use within the context. + * @return Zero on success, a negative value on error. + * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder */ int avcodec_open(AVCodecContext *avctx, AVCodec *codec); /** - * Decode an audio frame. - * - * @param avctx the codec context. - * @param samples output buffer, 16 byte aligned - * @param frame_size_ptr the output buffer size in bytes, zero if no frame could be compressed - * @param buf input buffer, 16 byte aligned - * @param buf_size the input buffer size - * @return 0 if successful, -1 if not. + * @deprecated Use avcodec_decode_audio2() instead. */ +attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, + int *frame_size_ptr, + uint8_t *buf, int buf_size); -int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, +/** + * Decodes an audio frame from \p buf into \p samples. + * The avcodec_decode_audio2() function decodes a frame of audio from the input + * buffer \p buf of size \p buf_size. To decode it, it makes use of the + * audiocodec which was coupled with \p avctx using avcodec_open(). The + * resulting decoded frame is stored in output buffer \p samples. If no frame + * could be decompressed, \p frame_size_ptr is zero. Otherwise, it is the + * decompressed frame size in \e bytes. + * + * @warning You \e must set \p frame_size_ptr to the allocated size of the + * output buffer before calling avcodec_decode_audio2(). + * + * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than + * the actual read bytes because some optimized bitstream readers read 32 or 64 + * bits at once and could read over the end. + * + * @warning The end of the input buffer \p buf should be set to 0 to ensure that + * no overreading happens for damaged MPEG streams. + * + * @note You might have to align the input buffer \p buf and output buffer \p + * samples. The alignment requirements depend on the CPU: on some CPUs it isn't + * necessary at all, on others it won't work at all if not aligned and on others + * it will work but it will have an impact on performance. In practice, the + * bitstream should have 4 byte alignment at minimum and all sample data should + * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If + * the linesize is not a multiple of 16 then there's no sense in aligning the + * start of the buffer to 16. + * + * @param avctx The codec context. + * @param[out] samples The output buffer. + * @param[in,out] frame_size_ptr The output buffer size in bytes. + * @param[in] buf The input buffer. + * @param[in] buf_size The input buffer size in bytes. + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame could be decompressed. + */ +int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples, int *frame_size_ptr, uint8_t *buf, int buf_size); + +/** + * Decodes a video frame from \p buf into \p picture. + * The avcodec_decode_video() function decodes a frame of video from the input + * buffer \p buf of size \p buf_size. To decode it, it makes use of the + * videocodec which was coupled with \p avctx using avcodec_open(). The + * resulting decoded frame is stored in \p picture. + * + * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than + * the actual read bytes because some optimized bitstream readers read 32 or 64 + * bits at once and could read over the end. + * + * @warning The end of the input buffer \p buf should be set to 0 to ensure that + * no overreading happens for damaged MPEG streams. + * + * @note You might have to align the input buffer \p buf and output buffer \p + * samples. The alignment requirements depend on the CPU: on some CPUs it isn't + * necessary at all, on others it won't work at all if not aligned and on others + * it will work but it will have an impact on performance. In practice, the + * bitstream should have 4 byte alignment at minimum and all sample data should + * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If + * the linesize is not a multiple of 16 then there's no sense in aligning the + * start of the buffer to 16. + * + * @param avctx The codec context. + * @param[out] picture The AVFrame in which the decoded video frame will be stored. + * @param[in] buf The input buffer. + * @param[in] buf_size The size of the input buffer in bytes. + * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is non zero. + * @return On error a negative value is returned, otherwise the number of bytes + * used or zero if no frame could be decompressed. + */ int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, uint8_t *buf, int buf_size); + +/* decode a subtitle message. return -1 if error, otherwise return the + *number of bytes used. If no subtitle could be decompressed, + *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */ int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, const uint8_t *buf, int buf_size); int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, int *data_size_ptr, uint8_t *buf, int buf_size); + +/** + * Encodes an audio frame from \p samples into \p buf. + * The avcodec_encode_audio() function encodes a frame of audio from the input + * buffer \p samples. To encode it, it makes use of the audiocodec which was + * coupled with \p avctx using avcodec_open(). The resulting encoded frame is + * stored in output buffer \p buf. + * + * @note The output buffer should be at least \c FF_MIN_BUFFER_SIZE bytes large. + * + * @param avctx The codec context. + * @param[out] buf The output buffer. + * @param[in] buf_size The output buffer size. + * @param[in] samples The input buffer containing the samples. + * @return On error a negative value is returned, on succes zero or the number + * of bytes used from the input buffer. + */ int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, const short *samples); + +/** + * Encodes a video frame from \p pict into \p buf. + * The avcodec_encode_video() function encodes a frame of video from the input + * \p pict. To encode it, it makes use of the videocodec which was coupled with + * \p avctx using avcodec_open(). The resulting encoded bytes representing the + * frame are stored in the output buffer \p buf. The input picture should be + * stored using a specific format, namely \c avctx.pix_fmt. + * + * @param avctx The codec context. + * @param[out] buf The output buffer for the bitstream of encoded frame. + * @param[in] buf_size The size of the outputbuffer in bytes. + * @param[in] pict The input picture to encode. + * @return On error a negative value is returned, on success zero or the number + * of bytes used from the input buffer. + */ int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVFrame *pict); int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, @@ -2543,19 +2872,28 @@ int avcodec_close(AVCodecContext *avctx); void avcodec_register_all(void); +/** + * Flush buffers, should be called when seeking or when switching to a different stream. + */ void avcodec_flush_buffers(AVCodecContext *avctx); void avcodec_default_free_buffers(AVCodecContext *s); -/* misc usefull functions */ +/* misc useful functions */ /** - * returns a single letter to describe the picture type + * Returns a single letter to describe the given picture type \p pict_type. + * + * @param[in] pict_type The picture type. + * @return A single character representing the picture type. */ char av_get_pict_type_char(int pict_type); /** - * returns codec bits per sample + * Returns codec bits per sample. + * + * @param[in] codec_id The codec. + * @return Number of bits per sample or zero if unknown for the given codec. */ int av_get_bits_per_sample(enum CodecID codec_id); @@ -2616,19 +2954,21 @@ int av_parser_change(AVCodecParserContext *s, const uint8_t *buf, int buf_size, int keyframe); void av_parser_close(AVCodecParserContext *s); -extern AVCodecParser mpegvideo_parser; -extern AVCodecParser mpeg4video_parser; +extern AVCodecParser aac_parser; +extern AVCodecParser ac3_parser; extern AVCodecParser cavsvideo_parser; +extern AVCodecParser dca_parser; +extern AVCodecParser dvbsub_parser; +extern AVCodecParser dvdsub_parser; extern AVCodecParser h261_parser; extern AVCodecParser h263_parser; extern AVCodecParser h264_parser; extern AVCodecParser mjpeg_parser; -extern AVCodecParser pnm_parser; +extern AVCodecParser mpeg4video_parser; extern AVCodecParser mpegaudio_parser; -extern AVCodecParser ac3_parser; -extern AVCodecParser dvdsub_parser; -extern AVCodecParser dvbsub_parser; -extern AVCodecParser aac_parser; +extern AVCodecParser mpegvideo_parser; +extern AVCodecParser pnm_parser; +extern AVCodecParser vc1_parser; typedef struct AVBitStreamFilterContext { @@ -2665,41 +3005,85 @@ extern AVBitStreamFilter noise_bsf; extern AVBitStreamFilter mp3_header_compress_bsf; extern AVBitStreamFilter mp3_header_decompress_bsf; extern AVBitStreamFilter mjpega_dump_header_bsf; +extern AVBitStreamFilter imx_dump_header_bsf; /* memory */ + +/** + * Reallocates the given block if it is not large enough, otherwise it + * does nothing. + * + * @see av_realloc + */ void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size); + /* for static data only */ -/* call av_free_static to release all staticaly allocated tables */ -void av_free_static(void); -void *av_mallocz_static(unsigned int size); -void *av_realloc_static(void *ptr, unsigned int size); -void img_copy(AVPicture *dst, const AVPicture *src, +/** + * Frees all static arrays and reset their pointers to 0. + * Call this function to release all statically allocated tables. + */ +attribute_deprecated void av_free_static(void); + +/** + * Allocation of static arrays. + * + * @warning Do not use for normal allocation. + * + * @param[in] size The amount of memory you need in bytes. + * @return Block of memory of the requested size. + */ +attribute_deprecated void *av_mallocz_static(unsigned int size); + +/** + * Copy image 'src' to 'dst'. + */ +void av_picture_copy(AVPicture *dst, const AVPicture *src, int pix_fmt, int width, int height); -int img_crop(AVPicture *dst, const AVPicture *src, +/** + * Crop image top and left side + */ +int av_picture_crop(AVPicture *dst, const AVPicture *src, int pix_fmt, int top_band, int left_band); -int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, +/** + * Pad image + */ +int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, int padtop, int padbottom, int padleft, int padright, int *color); -/* endian macros */ -#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32) -#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1]) -#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \ - (((uint8_t*)(x))[1] << 16) | \ - (((uint8_t*)(x))[2] << 8) | \ - ((uint8_t*)(x))[3]) -#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0]) -#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \ - (((uint8_t*)(x))[2] << 16) | \ - (((uint8_t*)(x))[1] << 8) | \ - ((uint8_t*)(x))[0]) +#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) +attribute_deprecated void img_copy(AVPicture *dst, const AVPicture *src, + int pix_fmt, int width, int height); + +attribute_deprecated int img_crop(AVPicture *dst, const AVPicture *src, + int pix_fmt, int top_band, int left_band); + +attribute_deprecated int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, + int padtop, int padbottom, int padleft, int padright, int *color); #endif extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v); +/* error handling */ +#if EINVAL > 0 +#define AVERROR(e) (-(e)) /**< returns a negative error code from a POSIX error code, to return from library functions. */ +#define AVUNERROR(e) (-(e)) /**< returns a POSIX error code from a library function error return value. */ +#else +/* some platforms have E* and errno already negated. */ +#define AVERROR(e) (e) +#define AVUNERROR(e) (e) +#endif +#define AVERROR_UNKNOWN AVERROR(EINVAL) /**< unknown error */ +#define AVERROR_IO AVERROR(EIO) /**< i/o error */ +#define AVERROR_NUMEXPECTED AVERROR(EDOM) /**< number syntax expected in filename */ +#define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< invalid data found */ +#define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */ +#define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */ +#define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< operation not supported */ + #ifdef __cplusplus } #endif |