* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef AVCODEC_H
-#define AVCODEC_H
+#ifndef FFMPEG_AVCODEC_H
+#define FFMPEG_AVCODEC_H
/**
* @file avcodec.h
*/
-#include "avutil.h"
-#include <sys/types.h> /* size_t */
+#include "libavutil/avutil.h"
-#define AV_STRINGIFY(s) AV_TOSTRING(s)
-#define AV_TOSTRING(s) #s
+#define LIBAVCODEC_VERSION_MAJOR 51
+#define LIBAVCODEC_VERSION_MINOR 57
+#define LIBAVCODEC_VERSION_MICRO 0
-#define LIBAVCODEC_VERSION_INT ((51<<16)+(40<<8)+4)
-#define LIBAVCODEC_VERSION 51.40.4
+#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
*/
enum CodecID {
CODEC_ID_NONE,
+
+ /* video codecs */
CODEC_ID_MPEG1VIDEO,
- CODEC_ID_MPEG2VIDEO, /* preferred ID for MPEG-1/2 video decoding */
+ CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
CODEC_ID_MPEG2VIDEO_XVMC,
CODEC_ID_H261,
CODEC_ID_H263,
CODEC_ID_BETHSOFTVID,
CODEC_ID_PTX,
CODEC_ID_TXD,
+ CODEC_ID_VP6A,
+ CODEC_ID_AMV,
+ CODEC_ID_VB,
+ CODEC_ID_PCX,
+ CODEC_ID_SUNRAST,
+ CODEC_ID_INDEO4,
+ CODEC_ID_INDEO5,
+ CODEC_ID_MIMIC,
+ CODEC_ID_RL2,
+ CODEC_ID_8SVX_EXP,
+ CODEC_ID_8SVX_FIB,
+ CODEC_ID_ESCAPE124,
+ CODEC_ID_DIRAC,
+ CODEC_ID_BFI,
/* various PCM "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
CODEC_ID_PCM_U24LE,
CODEC_ID_PCM_U24BE,
CODEC_ID_PCM_S24DAUD,
+ CODEC_ID_PCM_ZORK,
+ CODEC_ID_PCM_S16LE_PLANAR,
+ CODEC_ID_PCM_DVD,
/* various ADPCM codecs */
CODEC_ID_ADPCM_IMA_QT= 0x11000,
CODEC_ID_ADPCM_SBPRO_3,
CODEC_ID_ADPCM_SBPRO_2,
CODEC_ID_ADPCM_THP,
+ CODEC_ID_ADPCM_IMA_AMV,
+ CODEC_ID_ADPCM_EA_R1,
+ CODEC_ID_ADPCM_EA_R3,
+ CODEC_ID_ADPCM_EA_R2,
+ CODEC_ID_ADPCM_IMA_EA_SEAD,
+ CODEC_ID_ADPCM_IMA_EA_EACS,
+ CODEC_ID_ADPCM_EA_XAS,
+ CODEC_ID_ADPCM_EA_MAXIS_XA,
/* AMR */
CODEC_ID_AMR_NB= 0x12000,
CODEC_ID_XAN_DPCM,
CODEC_ID_SOL_DPCM,
+ /* audio codecs */
CODEC_ID_MP2= 0x15000,
- CODEC_ID_MP3, /* preferred ID for decoding MPEG audio layer 1, 2 or 3 */
+ CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
CODEC_ID_AAC,
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
CODEC_ID_MPEG4AAC,
CODEC_ID_SHORTEN,
CODEC_ID_ALAC,
CODEC_ID_WESTWOOD_SND1,
- CODEC_ID_GSM, /* as in Berlin toast format */
+ CODEC_ID_GSM, ///< as in Berlin toast format
CODEC_ID_QDM2,
CODEC_ID_COOK,
CODEC_ID_TRUESPEECH,
CODEC_ID_MLP,
CODEC_ID_GSM_MS, /* as found in WAV */
CODEC_ID_ATRAC3,
+ CODEC_ID_VOXWARE,
+ CODEC_ID_APE,
+ CODEC_ID_NELLYMOSER,
+ CODEC_ID_MUSEPACK8,
+ CODEC_ID_SPEEX,
+ CODEC_ID_WMAVOICE,
+ CODEC_ID_WMAPRO,
+ CODEC_ID_WMALOSSLESS,
/* subtitle codecs */
CODEC_ID_DVD_SUBTITLE= 0x17000,
CODEC_ID_DVB_SUBTITLE,
+ CODEC_ID_TEXT, ///< raw UTF-8 text
+ CODEC_ID_XSUB,
+ CODEC_ID_SSA,
+ CODEC_ID_MOV_TEXT,
+
+ /* other specific kind of codecs (generally used for attachments) */
+ CODEC_ID_TTF= 0x18000,
- CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG-2 TS
+ CODEC_ID_MPEG2TS= 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
* stream (only used by libavformat) */
};
CODEC_TYPE_AUDIO,
CODEC_TYPE_DATA,
CODEC_TYPE_SUBTITLE,
+ CODEC_TYPE_ATTACHMENT,
CODEC_TYPE_NB
};
-/* Currently unused, may be used if 24/32 bits samples are ever supported. */
-/* all in native-endian format */
+/**
+ * Currently unused, may be used if 24/32 bits samples are ever supported.
+ * all in native-endian format
+ */
enum SampleFormat {
SAMPLE_FMT_NONE = -1,
SAMPLE_FMT_U8, ///< unsigned 8 bits
*/
#define FF_MIN_BUFFER_SIZE 16384
-/* motion estimation type, EPZS by default */
+/**
+ * motion estimation type.
+ */
enum Motion_Est_ID {
- ME_ZERO = 1,
+ ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed
ME_FULL,
ME_LOG,
ME_PHODS,
- ME_EPZS,
- ME_X1,
- ME_HEX,
- ME_UMH,
- ME_ITER,
+ ME_EPZS, ///< enhanced predictive zonal search
+ ME_X1, ///< reserved for experiments
+ ME_HEX, ///< hexagon based search
+ ME_UMH, ///< uneven multi-hexagon search
+ ME_ITER, ///< iterative search
};
enum AVDiscard{
#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.
-/* The parent program guarantees that the input for B-frames containing
+/**
+ * The parent program guarantees that the input for B-frames containing
* streams is not written to for at least s->max_b_frames+1 frames, if
- * this is not set the input will be copied. */
+ * this is not set the input will be copied.
+ */
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
-#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
-#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
-#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG).
-#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
-#define CODEC_FLAG_EMU_EDGE 0x4000///< Don't draw edges.
-#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
-#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random location instead
- of only at frame boundaries. */
+#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
+#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
+#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG).
+#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
+#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges.
+#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
+#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random
+ location instead 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.
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data.
-#define CODEC_FLAG_CLOSED_GOP ((int)0x80000000)
+#define CODEC_FLAG_CLOSED_GOP 0x80000000
#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks.
#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size.
#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding.
#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping
#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 nonlinear quantizer.
+#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
/* Unsupported options :
* Syntax Arithmetic coding (SAC)
#define MB_TYPE_8x16 0x0020
#define MB_TYPE_8x8 0x0040
#define MB_TYPE_INTERLACED 0x0080
-#define MB_TYPE_DIRECT2 0x0100 //FIXME
+#define MB_TYPE_DIRECT2 0x0100 //FIXME
#define MB_TYPE_ACPRED 0x0200
#define MB_TYPE_GMC 0x0400
#define MB_TYPE_SKIP 0x0800
\
/**\
* is this picture used as reference\
+ * The values for this are the same as the MpegEncContext.picture_structure\
+ * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
* - encoding: unused\
* - decoding: Set by libavcodec. (before get_buffer() call)).\
*/\
#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate 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
+#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 ///< Switching Intra
+#define FF_SP_TYPE 6 ///< Switching Predicted
+#define FF_BI_TYPE 7
#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore).
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
/**
* Audio Video Frame.
+ * New fields can be added to the end of FF_COMMON_FRAME with minor version
+ * bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump. No fields should be added into AVFrame before or after
+ * FF_COMMON_FRAME!
+ * sizeof(AVFrame) must not be used outside libav*.
*/
typedef struct AVFrame {
FF_COMMON_FRAME
#define DEFAULT_FRAME_RATE_BASE 1001000
/**
- * main external API structure
+ * main external API structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVCodecContext) must not be used outside libav*.
*/
typedef struct AVCodecContext {
/**
* information on struct for av_log
* - set by avcodec_alloc_context
*/
- AVClass *av_class;
+ const AVClass *av_class;
/**
* the average bitrate
* - encoding: Set by user; unused for constant quantizer encoding.
/* audio only */
int sample_rate; ///< samples per second
- int channels;
+ int channels; ///< number of audio channels
/**
* audio sample format
int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
/**
- * Called to release buffers which where allocated with get_buffer.
+ * Called to release buffers which were allocated with get_buffer.
* A released buffer can be reused in get_buffer().
* pic.data[*] must be set to NULL.
* - encoding: unused
* - encoding: Set by user
* - decoding: unused
*/
- char *rc_eq;
+ const char *rc_eq;
/**
* maximum bitrate
float dark_masking;
+#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
/* for binary compatibility */
int unused;
+#endif
/**
* IDCT algorithm, see FF_IDCT_* below.
* - decoding: Set by user.
*/
int idct_algo;
-#define FF_IDCT_AUTO 0
-#define FF_IDCT_INT 1
-#define FF_IDCT_SIMPLE 2
-#define FF_IDCT_SIMPLEMMX 3
-#define FF_IDCT_LIBMPEG2MMX 4
-#define FF_IDCT_PS2 5
-#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
-#define FF_IDCT_H264 11
-#define FF_IDCT_VP3 12
-#define FF_IDCT_IPP 13
-#define FF_IDCT_XVIDMMX 14
-#define FF_IDCT_CAVS 15
+#define FF_IDCT_AUTO 0
+#define FF_IDCT_INT 1
+#define FF_IDCT_SIMPLE 2
+#define FF_IDCT_SIMPLEMMX 3
+#define FF_IDCT_LIBMPEG2MMX 4
+#define FF_IDCT_PS2 5
+#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
+#define FF_IDCT_H264 11
+#define FF_IDCT_VP3 12
+#define FF_IDCT_IPP 13
+#define FF_IDCT_XVIDMMX 14
+#define FF_IDCT_CAVS 15
#define FF_IDCT_SIMPLEARMV5TE 16
-#define FF_IDCT_SIMPLEARMV6 17
+#define FF_IDCT_SIMPLEARMV6 17
+#define FF_IDCT_SIMPLEVIS 18
+#define FF_IDCT_WMV2 19
+#define FF_IDCT_FAAN 20
/**
* slice count
unsigned dsp_mask;
#define FF_MM_FORCE 0x80000000 /* Force usage of selected flags (OR) */
/* lower 16 bits - CPU features */
-#define FF_MM_MMX 0x0001 /* standard MMX */
-#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
-#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
-#define FF_MM_SSE 0x0008 /* SSE functions */
-#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
-#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
-#define FF_MM_SSE3 0x0040 /* Prescott SSE3 functions */
-#define FF_MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
-#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
+#define FF_MM_MMX 0x0001 ///< standard MMX
+#define FF_MM_3DNOW 0x0004 ///< AMD 3DNOW
+#define FF_MM_MMXEXT 0x0002 ///< SSE integer functions or AMD MMX ext
+#define FF_MM_SSE 0x0008 ///< SSE functions
+#define FF_MM_SSE2 0x0010 ///< PIV SSE2 functions
+#define FF_MM_3DNOWEXT 0x0020 ///< AMD 3DNowExt
+#define FF_MM_SSE3 0x0040 ///< Prescott SSE3 functions
+#define FF_MM_SSSE3 0x0080 ///< Conroe SSSE3 functions
+#define FF_MM_IWMMXT 0x0100 ///< XScale IWMMXT
/**
* bits per sample/pixel from the demuxer (needed for huffyuv).
* - decoding: Set by user.
*/
int debug;
-#define FF_DEBUG_PICT_INFO 1
-#define FF_DEBUG_RC 2
-#define FF_DEBUG_BITSTREAM 4
-#define FF_DEBUG_MB_TYPE 8
-#define FF_DEBUG_QP 16
-#define FF_DEBUG_MV 32
-#define FF_DEBUG_DCT_COEFF 0x00000040
-#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
-#define FF_DEBUG_VIS_QP 0x00002000
+#define FF_DEBUG_PICT_INFO 1
+#define FF_DEBUG_RC 2
+#define FF_DEBUG_BITSTREAM 4
+#define FF_DEBUG_MB_TYPE 8
+#define FF_DEBUG_QP 16
+#define FF_DEBUG_MV 32
+#define FF_DEBUG_DCT_COEFF 0x00000040
+#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
+#define FF_DEBUG_VIS_QP 0x00002000
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
/**
* - decoding: unused
*/
int ildct_cmp;
-#define FF_CMP_SAD 0
-#define FF_CMP_SSE 1
-#define FF_CMP_SATD 2
-#define FF_CMP_DCT 3
-#define FF_CMP_PSNR 4
-#define FF_CMP_BIT 5
-#define FF_CMP_RD 6
-#define FF_CMP_ZERO 7
-#define FF_CMP_VSAD 8
-#define FF_CMP_VSSE 9
-#define FF_CMP_NSSE 10
-#define FF_CMP_W53 11
-#define FF_CMP_W97 12
+#define FF_CMP_SAD 0
+#define FF_CMP_SSE 1
+#define FF_CMP_SATD 2
+#define FF_CMP_DCT 3
+#define FF_CMP_PSNR 4
+#define FF_CMP_BIT 5
+#define FF_CMP_RD 6
+#define FF_CMP_ZERO 7
+#define FF_CMP_VSAD 8
+#define FF_CMP_VSSE 9
+#define FF_CMP_NSSE 10
+#define FF_CMP_W53 11
+#define FF_CMP_W97 12
#define FF_CMP_DCTMAX 13
#define FF_CMP_DCT264 14
#define FF_CMP_CHROMA 256
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
+#define FF_MB_DECISION_RD 2 ///< rate distortion
/**
* custom intra quantization matrix
int profile;
#define FF_PROFILE_UNKNOWN -99
#define FF_PROFILE_AAC_MAIN 0
-#define FF_PROFILE_AAC_LOW 1
-#define FF_PROFILE_AAC_SSR 2
-#define FF_PROFILE_AAC_LTP 3
+#define FF_PROFILE_AAC_LOW 1
+#define FF_PROFILE_AAC_SSR 2
+#define FF_PROFILE_AAC_LTP 3
/**
* level
* - decoding: unused
*/
int partitions;
-#define X264_PART_I4X4 0x001 /* Analyse i4x4 */
-#define X264_PART_I8X8 0x002 /* Analyse i8x8 (requires 8x8 transform) */
-#define X264_PART_P8X8 0x010 /* Analyse p16x8, p8x16 and p8x8 */
-#define X264_PART_P4X4 0x020 /* Analyse p8x4, p4x8, p4x4 */
-#define X264_PART_B8X8 0x100 /* Analyse b16x8, b8x16 and b8x8 */
+#define X264_PART_I4X4 0x001 /* Analyze i4x4 */
+#define X264_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
+#define X264_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
+#define X264_PART_P4X4 0x020 /* Analyze p8x4, p4x8, p4x4 */
+#define X264_PART_B8X8 0x100 /* Analyze b16x8, b8x16 and b8x8 */
/**
* direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal)
int directpred;
/**
- * Audio cutoff bandwidth (0 means "automatic"), currently used only by FAAC.
+ * Audio cutoff bandwidth (0 means "automatic")
* - encoding: Set by user.
* - decoding: unused
*/
* - decoding: unused
*/
int64_t timecode_frame_start;
+
+ /**
+ * Decoder should decode to this many channels if it can (0 for default)
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int request_channels;
+
+ /**
+ * Percentage of dynamic range compression to be applied by the decoder.
+ * The default value is 1.0, corresponding to full compression.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ float drc_scale;
} AVCodecContext;
/**
int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
int (*close)(AVCodecContext *);
int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
- uint8_t *buf, int buf_size);
+ const uint8_t *buf, int buf_size);
+ /**
+ * Codec capabilities.
+ * see CODEC_CAP_*
+ */
int capabilities;
struct AVCodec *next;
+ /**
+ * Flush buffers.
+ * Will be called when seeking
+ */
void (*flush)(AVCodecContext *);
- const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
- const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
+ const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
+ const enum PixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
+ const char *long_name; ///< descriptive name for the codec, meant to be more human readable than \p name
+ const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
} AVCodec;
/**
* Print in buf the string corresponding to the pixel format with
* number pix_fmt, or an header if pix_fmt is negative.
*
- * @param buf[in] the buffer where to write the string
- * @param buf_size[in] the size of buf
- * @param pix_fmt[in] the number of the pixel format to print the corresponding info string, or
+ * @param[in] buf the buffer where to write the string
+ * @param[in] buf_size the size of buf
+ * @param[in] pix_fmt the number of the pixel format to print the corresponding info string, or
* a negative value to print the corresponding header.
* Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1.
*/
/* external high level API */
+#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
extern AVCodec *first_avcodec;
+#endif
+AVCodec *av_codec_next(AVCodec *c);
/* returns LIBAVCODEC_VERSION_INT constant */
unsigned avcodec_version(void);
void register_avcodec(AVCodec *format);
/**
- * Finds an encoder with a matching codec ID.
+ * Finds a registered 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.
+ * Finds a registered 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.
+ * Finds a registered 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.
+ * Finds a registered decoder with the specified name.
*
* @param name name of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
int *frame_size_ptr,
- uint8_t *buf, int buf_size);
+ const uint8_t *buf, int buf_size);
/**
* Decodes an audio frame from \p buf into \p samples.
*/
int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
int *frame_size_ptr,
- uint8_t *buf, int buf_size);
+ const uint8_t *buf, int buf_size);
/**
* Decodes a video frame from \p buf into \p picture.
*/
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
int *got_picture_ptr,
- uint8_t *buf, int buf_size);
+ const 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,
* @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.
+ * The number of samples read from this buffer is frame_size*channels,
+ * both of which are defined in \p avctx.
+ * For PCM audio the number of samples read from \p samples is equal to
+ * \p buf_size * input_sample_size / output_sample_size.
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used to encode the data read from the input buffer.
*/
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
const short *samples);
*/
int av_get_bits_per_sample(enum CodecID codec_id);
+/**
+ * Returns sample format bits per sample.
+ *
+ * @param[in] sample_fmt the sample format
+ * @return Number of bits per sample or zero if unknown for the given sample format.
+ */
+int av_get_bits_per_sample_format(enum SampleFormat sample_fmt);
+
/* frame parsing */
typedef struct AVCodecParserContext {
void *priv_data;
struct AVCodecParser *next;
} AVCodecParser;
+#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
extern AVCodecParser *av_first_parser;
+#endif
+AVCodecParser *av_parser_next(AVCodecParser *c);
void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);
const uint8_t *buf, int buf_size, int keyframe);
void av_parser_close(AVCodecParserContext *s);
-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 mpeg4video_parser;
-extern AVCodecParser mpegaudio_parser;
-extern AVCodecParser mpegvideo_parser;
-extern AVCodecParser pnm_parser;
-extern AVCodecParser vc1_parser;
-
typedef struct AVBitStreamFilterContext {
void *priv_data;
AVCodecContext *avctx, const char *args,
uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size, int keyframe);
+ void (*close)(AVBitStreamFilterContext *bsfc);
struct AVBitStreamFilter *next;
} AVBitStreamFilter;
-extern AVBitStreamFilter *av_first_bitstream_filter;
-
void av_register_bitstream_filter(AVBitStreamFilter *bsf);
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
const uint8_t *buf, int buf_size, int keyframe);
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
-extern AVBitStreamFilter dump_extradata_bsf;
-extern AVBitStreamFilter remove_extradata_bsf;
-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;
-
+AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);
/* memory */
* Frees all static arrays and resets their pointers to 0.
* Call this function to release all statically allocated tables.
*
- * @deprecated. Code which uses av_free_static is broken/missdesigned
+ * @deprecated. Code which uses av_free_static is broken/misdesigned
* and should correctly use static arrays
*
*/
*
* @param[in] size The amount of memory you need in bytes.
* @return block of memory of the requested size
- * @deprecated. Code which uses av_mallocz_static is broken/missdesigned
+ * @deprecated. Code which uses av_mallocz_static is broken/misdesigned
* and should correctly use static arrays
*/
-attribute_deprecated void *av_mallocz_static(unsigned int size);
+attribute_deprecated av_malloc_attrib av_alloc_size(1)
+void *av_mallocz_static(unsigned int size);
/**
* Copy image 'src' to 'dst'.
#define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */
#define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */
#define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */
+#define AVERROR_PATCHWELCOME -MKTAG('P','A','W','E') /**< Not yet implemented in FFmpeg. Patches welcome. */
-#endif /* AVCODEC_H */
+#endif /* FFMPEG_AVCODEC_H */
projects / ffmpeg / blobdiff