#include "common.h"
-#define LIBAVCODEC_VERSION_INT 0x000406
-#define LIBAVCODEC_VERSION "0.4.6"
-#define LIBAVCODEC_BUILD 4662
-#define LIBAVCODEC_BUILD_STR "4662"
+#define FFMPEG_VERSION_INT 0x000408
+#define FFMPEG_VERSION "0.4.8"
+#define LIBAVCODEC_BUILD 4681
-#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
+#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
+#define LIBAVCODEC_VERSION FFMPEG_VERSION
+
+#define AV_STRINGIFY(s) AV_TOSTRING(s)
+#define AV_TOSTRING(s) #s
+#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
enum CodecID {
CODEC_ID_NONE,
CODEC_ID_MPEG1VIDEO,
+ CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
+ CODEC_ID_MPEG2VIDEO_XVMC,
CODEC_ID_H263,
CODEC_ID_RV10,
CODEC_ID_MP2,
- CODEC_ID_MP3LAME,
+ CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
CODEC_ID_VORBIS,
CODEC_ID_AC3,
CODEC_ID_MJPEG,
CODEC_ID_MJPEGB,
+ CODEC_ID_LJPEG,
CODEC_ID_MPEG4,
CODEC_ID_RAWVIDEO,
CODEC_ID_MSMPEG4V1,
CODEC_ID_WMV2,
CODEC_ID_H263P,
CODEC_ID_H263I,
+ CODEC_ID_FLV1,
CODEC_ID_SVQ1,
+ CODEC_ID_SVQ3,
CODEC_ID_DVVIDEO,
CODEC_ID_DVAUDIO,
CODEC_ID_WMAV1,
CODEC_ID_MACE6,
CODEC_ID_HUFFYUV,
CODEC_ID_CYUV,
+ CODEC_ID_H264,
+ CODEC_ID_INDEO3,
+ CODEC_ID_VP3,
+ CODEC_ID_AAC,
+ CODEC_ID_MPEG4AAC,
+ CODEC_ID_ASV1,
+ CODEC_ID_ASV2,
+ CODEC_ID_FFV1,
+ CODEC_ID_4XM,
+ CODEC_ID_VCR1,
+ CODEC_ID_CLJR,
+ CODEC_ID_MDEC,
+ CODEC_ID_ROQ,
+ CODEC_ID_INTERPLAY_VIDEO,
+ CODEC_ID_XAN_WC3,
+ CODEC_ID_XAN_WC4,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE,
/* various adpcm codecs */
CODEC_ID_ADPCM_IMA_QT,
CODEC_ID_ADPCM_IMA_WAV,
+ CODEC_ID_ADPCM_IMA_DK3,
+ CODEC_ID_ADPCM_IMA_DK4,
CODEC_ID_ADPCM_MS,
+ CODEC_ID_ADPCM_4XM,
+
+ /* AMR */
+ CODEC_ID_AMR_NB,
+ CODEC_ID_AMR_WB,
+
+ /* RealAudio codecs*/
+ CODEC_ID_RA_144,
+ CODEC_ID_RA_288,
+
+ /* various DPCM codecs */
+ CODEC_ID_ROQ_DPCM,
+ CODEC_ID_INTERPLAY_DPCM,
+ CODEC_ID_XAN_DPCM,
};
+/* CODEC_ID_MP3LAME is absolete */
+#define CODEC_ID_MP3LAME CODEC_ID_MP3
+
enum CodecType {
CODEC_TYPE_UNKNOWN = -1,
CODEC_TYPE_VIDEO,
};
/**
- * Pixel format.
+ * Pixel format. Notes:
+ *
+ * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
+ * color is put together as:
+ * (A << 24) | (R << 16) | (G << 8) | B
+ * This is stored as BGRA on little endian CPU architectures and ARGB on
+ * big endian CPUs.
+ *
+ * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
+ * image data is stored in AVFrame.data[0]. The palette is transported in
+ * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
+ * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
+ * also endian-specific).
*/
enum PixelFormat {
- PIX_FMT_YUV420P,
- PIX_FMT_YUV422,
- PIX_FMT_RGB24, ///< 3 bytes, R is first
- PIX_FMT_BGR24, ///< 3 bytes, B is first
- PIX_FMT_YUV422P,
- PIX_FMT_YUV444P,
- PIX_FMT_RGBA32, ///< always stored in cpu endianness
- PIX_FMT_YUV410P,
- PIX_FMT_YUV411P,
+ PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
+ PIX_FMT_YUV422,
+ PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
+ PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
+ PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
+ PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
+ PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
+ PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
+ PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
PIX_FMT_RGB565, ///< always stored in cpu endianness
PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
PIX_FMT_GRAY8,
PIX_FMT_MONOWHITE, ///< 0 is white
PIX_FMT_MONOBLACK, ///< 0 is black
PIX_FMT_PAL8, ///< 8 bit with RGBA palette
+ PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
+ PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
+ PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
+ PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
+ PIX_FMT_XVMC_MPEG2_IDCT,
PIX_FMT_NB,
};
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
/**
- * Required number of zero bytes at the end of the input bitstream for decoding.
- * to avoid overreading (and possibly segfaulting)
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * this is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end<br>
+ * Note, if the first 23 bits of the additional bytes are not 0 then damaged
+ * MPEG bitstreams could cause overread and segfault
*/
#define FF_INPUT_BUFFER_PADDING_SIZE 8
Note: note not everything is supported yet
*/
-#define CODEC_FLAG_HQ 0x0001 ///< brute force MB-type decission mode (slow)
#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed
#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
of only at frame boundaries */
#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
-#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay / will fail on b frames
+#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
/* Fx : Flag for h263+ extra options */
#define CODEC_FLAG_H263P_AIC 0x01000000 ///< Advanced intra coding
#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
+#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
/* For advanced prediction mode, we reuse the 4MV flag */
/* Unsupported options :
* Syntax Arithmetic coding (SAC)
/* codec capabilities */
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
-#define CODEC_CAP_DR1 0x0002 ///< direct rendering method 1
+/**
+ * Codec uses get_buffer() for allocating buffers.
+ * direct rendering method 1
+ */
+#define CODEC_CAP_DR1 0x0002
/* if 'parse_only' field is true, then avcodec_parse_frame() can be
used */
#define CODEC_CAP_PARSE_ONLY 0x0004
#define CODEC_CAP_TRUNCATED 0x0008
#define FF_COMMON_FRAME \
+ /**\
+ * pointer to the picture planes.\
+ * this might be different from the first allocated byte\
+ * - encoding: \
+ * - decoding: \
+ */\
uint8_t *data[4];\
int linesize[4];\
/**\
int key_frame;\
\
/**\
- * picture type of the frame, see ?_TYPE below\
+ * picture type of the frame, see ?_TYPE below.\
* - encoding: set by lavc for coded_picture (and set by user for input)\
* - decoding: set by lavc\
*/\
* - encoding: MUST be set by user\
* - decoding: set by lavc\
*/\
- long long int pts;\
+ int64_t pts;\
\
/**\
* picture number in bitstream order.\
* type of the buffer (to keep track of who has to dealloc data[*])\
* - encoding: set by the one who allocs it\
* - decoding: set by the one who allocs it\
- * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
+ * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
*/\
int type;\
\
* - encoding: unused\
* - decoding: set by lavc\
*/\
- int repeat_pict;
+ int repeat_pict;\
+ \
+ /**\
+ * \
+ */\
+ int qscale_type;\
+#define FF_QSCALE_TYPE_MPEG1 0
+#define FF_QSCALE_TYPE_MPEG2 1
#define FF_BUFFER_TYPE_INTERNAL 1
-#define FF_BUFFER_TYPE_USER 2 // Direct rendering buffers
-#define FF_BUFFER_TYPE_SHARED 4 // input frame for encoding(wont be dealloced)
+#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
+#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base)
+#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
#define FF_I_TYPE 1 // Intra
#define FF_P_TYPE 2 // Predicted
#define FF_B_TYPE 3 // Bi-dir predicted
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
+#define FF_SI_TYPE 5
+#define FF_SP_TYPE 6
+/**
+ * Audio Video Frame.
+ */
typedef struct AVFrame {
FF_COMMON_FRAME
} AVFrame;
*/
int frame_rate;
- /**
- * frame_rate_base.
- * for variable fps this is 1
- * - encoding: set by user.
- * - decoding: set by lavc.
- */
- int frame_rate_base;
-
/**
* width / height.
* - encoding: MUST be set by user.
/**
* pixel format, see PIX_FMT_xxx.
- * - encoding: unused
+ * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
+ * conversion is in order. This only works for
+ * codecs with one supported pix_fmt, we should
+ * do something for a generic case as well.
* - decoding: set by lavc.
*/
enum PixelFormat pix_fmt;
* before
* - encoding: unused
* - decoding: set by user.
+ * @param height the height of the slice
+ * @param y the y position of the slice
+ * @param type 1->top field, 2->bottom field, 3->frame
+ * @param offset offset into the AVFrame.data from which the slice should be read
*/
void (*draw_horiz_band)(struct AVCodecContext *s,
- uint8_t **src_ptr, int linesize,
- int y, int width, int height);
+ const AVFrame *src, int offset[4],
+ int y, int type, int height);
/* audio only */
int sample_rate; ///< samples per sec
/**
* fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
* this is used to workaround some encoder bugs
- * - encoding: unused
+ * - 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
*/
unsigned int codec_tag;
#define FF_BUG_STD_QPEL 128
#define FF_BUG_QPEL_CHROMA2 256
#define FF_BUG_DIRECT_BLOCKSIZE 512
+#define FF_BUG_EDGE 1024
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
/**
/**
* called at the beginning of each frame to get a buffer for it.
* if pic.reference is set then the frame will be read later by lavc
+ * width and height should be rounded up to the next multiple of 16
* - encoding: unused
* - decoding: set by lavc, user can override
*/
*/
float dark_masking;
+
+ /* for binary compatibility */
+ int unused;
+
/**
* idct algorithm, see FF_IDCT_* below.
* - encoding: set by user
#define FF_IDCT_MLIB 6
#define FF_IDCT_ARM 7
#define FF_IDCT_ALTIVEC 8
+#define FF_IDCT_SH4 9
+#define FF_IDCT_SIMPLEARM 10
/**
* slice count.
#define FF_DEBUG_SKIP 0x00000080
#define FF_DEBUG_STARTCODE 0x00000100
#define FF_DEBUG_PTS 0x00000200
+#define FF_DEBUG_ER 0x00000400
+#define FF_DEBUG_MMCO 0x00000800
+#define FF_DEBUG_BUGS 0x00001000
/**
* error.
#define FF_DTG_AFD_16_9_SP_14_9 14
#define FF_DTG_AFD_SP_4_3 15
- int me_range;
/**
* Maximum motion estimation search range in subpel units.
* if 0 then no limit
* - encoding: set by user.
* - decoding: unused.
*/
+ int me_range;
+
+ /**
+ * frame_rate_base.
+ * for variable fps this is 1
+ * - encoding: set by user.
+ * - decoding: set by lavc.
+ * @todo move this after frame_rate
+ */
+ int frame_rate_base;
+ /**
+ * intra quantizer bias.
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int intra_quant_bias;
+#define FF_DEFAULT_QUANT_BIAS 999999
+
+ /**
+ * inter quantizer bias.
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int inter_quant_bias;
+
+ /**
+ * color table ID.
+ * - encoding: unused.
+ * - decoding: which clrtable should be used for 8bit RGB images
+ * table have to be stored somewhere FIXME
+ */
+ int color_table_id;
+
+ /**
+ * internal_buffer count.
+ * Dont touch, used by lavc default_get_buffer()
+ */
+ int internal_buffer_count;
+
+ /**
+ * internal_buffers.
+ * Dont touch, used by lavc default_get_buffer()
+ */
+ void *internal_buffer;
+
+#define FF_QUALITY_SCALE 256
+ /**
+ * global quality for codecs which cannot change it per frame.
+ * this should be proportional to MPEG1/2/4 qscale.
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int global_quality;
+
+#define FF_CODER_TYPE_VLC 0
+#define FF_CODER_TYPE_AC 1
+ /**
+ * coder type
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int coder_type;
+
+ /**
+ * context model
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int context_model;
+
+ /**
+ * slice flags
+ * - encoding: unused
+ * - decoding: set by user.
+ */
+ int slice_flags;
+#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
+#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
+#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
+
+ /**
+ * XVideo Motion Acceleration
+ * - encoding: forbidden
+ * - decoding: set by decoder
+ */
+ int xvmc_acceleration;
+
+ /**
+ * macroblock decision mode
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int mb_decision;
+#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
+#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
+#define FF_MB_DECISION_RD 2 ///< rate distoration
+
+ /**
+ * custom intra quantization matrix
+ * - encoding: set by user, can be NULL
+ * - decoding: set by lavc
+ */
+ uint16_t *intra_matrix;
+
+ /**
+ * custom inter quantization matrix
+ * - encoding: set by user, can be NULL
+ * - decoding: set by lavc
+ */
+ uint16_t *inter_matrix;
+
+ /**
+ * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * this is used to workaround some encoder bugs
+ * - encoding: unused
+ * - decoding: set by user, will be converted to upper case by lavc during init
+ */
+ unsigned int stream_codec_tag;
+
+ /**
+ * scene change detection threshold.
+ * 0 is default, larger means fewer detected scene changes
+ * - encoding: set by user.
+ * - decoding: unused
+ */
+ int scenechange_threshold;
} AVCodecContext;
*/
typedef struct AVCodec {
const char *name;
- int type;
+ enum CodecType type;
int id;
int priv_data_size;
int (*init)(AVCodecContext *);
int capabilities;
const AVOption *options;
struct AVCodec *next;
+ void (*flush)(AVCodecContext *);
} AVCodec;
/**
*/
typedef struct AVPicture {
uint8_t *data[4];
- int linesize[4];
+ int linesize[4]; ///< number of bytes per line
} AVPicture;
+/**
+ * AVPaletteControl
+ * This structure defines a method for communicating palette changes
+ * between and demuxer and a decoder.
+ */
+typedef struct AVPaletteControl {
+
+ /* demuxer sets this to 1 to indicate the palette has changed;
+ * decoder resets to 0 */
+ int palette_changed;
+
+ /* 256 3-byte RGB palette entries; the components should be
+ * formatted in the buffer as "RGBRGB..." and should be scaled to
+ * 8 bits if they originally represented 6-bit VGA palette
+ * components */
+ unsigned char palette[256 * 3];
+
+} AVPaletteControl;
+
extern AVCodec ac3_encoder;
extern AVCodec mp2_encoder;
extern AVCodec mp3lame_encoder;
extern AVCodec oggvorbis_encoder;
extern AVCodec mpeg1video_encoder;
+extern AVCodec mpeg2video_encoder;
extern AVCodec h263_encoder;
extern AVCodec h263p_encoder;
+extern AVCodec flv_encoder;
extern AVCodec rv10_encoder;
extern AVCodec mjpeg_encoder;
+extern AVCodec ljpeg_encoder;
extern AVCodec mpeg4_encoder;
extern AVCodec msmpeg4v1_encoder;
extern AVCodec msmpeg4v2_encoder;
extern AVCodec wmv1_encoder;
extern AVCodec wmv2_encoder;
extern AVCodec huffyuv_encoder;
+extern AVCodec h264_encoder;
+extern AVCodec asv1_encoder;
+extern AVCodec asv2_encoder;
+extern AVCodec vcr1_encoder;
+extern AVCodec ffv1_encoder;
+extern AVCodec mdec_encoder;
extern AVCodec h263_decoder;
extern AVCodec mpeg4_decoder;
extern AVCodec msmpeg4v3_decoder;
extern AVCodec wmv1_decoder;
extern AVCodec wmv2_decoder;
-extern AVCodec mpeg_decoder;
+extern AVCodec mpeg1video_decoder;
+extern AVCodec mpeg2video_decoder;
+extern AVCodec mpeg_xvmc_decoder;
extern AVCodec h263i_decoder;
+extern AVCodec flv_decoder;
extern AVCodec rv10_decoder;
extern AVCodec svq1_decoder;
+extern AVCodec svq3_decoder;
extern AVCodec dvvideo_decoder;
-extern AVCodec dvaudio_decoder;
extern AVCodec wmav1_decoder;
extern AVCodec wmav2_decoder;
extern AVCodec mjpeg_decoder;
extern AVCodec huffyuv_decoder;
extern AVCodec oggvorbis_decoder;
extern AVCodec cyuv_decoder;
+extern AVCodec h264_decoder;
+extern AVCodec indeo3_decoder;
+extern AVCodec vp3_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 mpeg4aac_decoder;
+extern AVCodec asv1_decoder;
+extern AVCodec asv2_decoder;
+extern AVCodec vcr1_decoder;
+extern AVCodec cljr_decoder;
+extern AVCodec ffv1_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 ra_144_decoder;
+extern AVCodec ra_288_decoder;
+extern AVCodec roq_dpcm_decoder;
+extern AVCodec interplay_dpcm_decoder;
+extern AVCodec xan_dpcm_decoder;
/* pcm codecs */
#define PCM_CODEC(id, name) \
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_DK3, adpcm_ima_dk3);
+PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
+PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
#undef PCM_CODEC
/* dummy raw video codec */
-extern AVCodec rawvideo_codec;
+extern AVCodec rawvideo_encoder;
+extern AVCodec rawvideo_decoder;
/* the following codecs use external GPL libs */
extern AVCodec ac3_decoder;
int leftBand, int rightBand);
void img_resample(ImgReSampleContext *s,
- AVPicture *output, AVPicture *input);
+ AVPicture *output, const AVPicture *input);
void img_resample_close(ImgReSampleContext *s);
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);
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);
+enum PixelFormat avcodec_get_pix_fmt(const char* name);
+
+#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) */
+
+int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
+ int has_alpha);
+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 */
+int img_get_alpha_info(const AVPicture *src,
+ int pix_fmt, int width, int height);
/* convert among pixel formats */
int img_convert(AVPicture *dst, int dst_pix_fmt,
- AVPicture *src, int pix_fmt,
+ const AVPicture *src, int pix_fmt,
int width, int height);
/* deinterlace a picture */
-int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
+int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
int pix_fmt, int width, int height);
/* external high level API */
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
+void avcodec_default_free_buffers(AVCodecContext *s);
+/**
+ * opens / inits the AVCodecContext.
+ * not thread save!
+ */
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
+
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
int *frame_size_ptr,
uint8_t *buf, int buf_size);
void avcodec_flush_buffers(AVCodecContext *avctx);
/* misc usefull functions */
+
+/**
+ * returns a single letter to describe the picture type
+ */
+char av_get_pict_type_char(int pict_type);
+
/**
* reduce a fraction.
* this is usefull for framerate calculations
projects / ffmpeg / blobdiff