AV_CODEC_ID_HNM4_VIDEO,
AV_CODEC_ID_HEVC,
AV_CODEC_ID_FIC,
+ AV_CODEC_ID_ALIAS_PIX,
+ AV_CODEC_ID_BRENDER_PIX,
+ AV_CODEC_ID_PAF_VIDEO,
+ AV_CODEC_ID_EXR,
+ AV_CODEC_ID_VP7,
+ AV_CODEC_ID_SANM,
+ AV_CODEC_ID_SGIRLE,
+ AV_CODEC_ID_MVC1,
+ AV_CODEC_ID_MVC2,
+ AV_CODEC_ID_HQX,
+ AV_CODEC_ID_TDSC,
+ AV_CODEC_ID_HQ_HQA,
+ AV_CODEC_ID_HAP,
+ AV_CODEC_ID_DDS,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
AV_CODEC_ID_PCM_S8_PLANAR,
AV_CODEC_ID_PCM_S24LE_PLANAR,
AV_CODEC_ID_PCM_S32LE_PLANAR,
+ AV_CODEC_ID_PCM_S16BE_PLANAR,
/* various ADPCM codecs */
AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
AV_CODEC_ID_ADPCM_IMA_ISS,
AV_CODEC_ID_ADPCM_G722,
AV_CODEC_ID_ADPCM_IMA_APC,
+ AV_CODEC_ID_ADPCM_VIMA,
/* AMR */
AV_CODEC_ID_AMR_NB = 0x12000,
AV_CODEC_ID_COMFORT_NOISE,
AV_CODEC_ID_TAK,
AV_CODEC_ID_METASOUND,
+ AV_CODEC_ID_PAF_AUDIO,
+ AV_CODEC_ID_ON2AVC,
+ AV_CODEC_ID_DSS_SP,
/* subtitle codecs */
AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
/**
* This struct describes the properties of a single codec described by an
* AVCodecID.
- * @see avcodec_get_descriptor()
+ * @see avcodec_descriptor_get()
*/
typedef struct AVCodecDescriptor {
enum AVCodecID id;
* Codec supports lossless compression. Audio and video codecs only.
*/
#define AV_CODEC_PROP_LOSSLESS (1 << 2)
+/**
+ * Codec supports frame reordering. That is, the coded order (the order in which
+ * the encoded packets are output by the encoders / stored / input to the
+ * decoders) may be different from the presentation order of the corresponding
+ * frames.
+ *
+ * For codecs that do not have this property set, PTS and DTS should always be
+ * equal.
+ */
+#define AV_CODEC_PROP_REORDER (1 << 3)
/**
* @ingroup lavc_decoding
AVDISCARD_ALL = 48, ///< discard all
};
-enum AVColorPrimaries{
- AVCOL_PRI_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
- AVCOL_PRI_UNSPECIFIED = 2,
- AVCOL_PRI_BT470M = 4,
- AVCOL_PRI_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
- AVCOL_PRI_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
- AVCOL_PRI_SMPTE240M = 7, ///< functionally identical to above
- AVCOL_PRI_FILM = 8,
- AVCOL_PRI_BT2020 = 9, ///< ITU-R BT2020
- AVCOL_PRI_NB , ///< Not part of ABI
-};
-
-enum AVColorTransferCharacteristic{
- AVCOL_TRC_BT709 = 1, ///< also ITU-R BT1361
- AVCOL_TRC_UNSPECIFIED = 2,
- AVCOL_TRC_GAMMA22 = 4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
- AVCOL_TRC_GAMMA28 = 5, ///< also ITU-R BT470BG
- AVCOL_TRC_SMPTE170M = 6, ///< also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
- AVCOL_TRC_SMPTE240M = 7,
- AVCOL_TRC_LINEAR = 8, ///< "Linear transfer characteristics"
- AVCOL_TRC_LOG = 9, ///< "Logarithmic transfer characteristic (100:1 range)"
- AVCOL_TRC_LOG_SQRT = 10, ///< "Logarithmic transfer characteristic (100 * Sqrt( 10 ) : 1 range)"
- AVCOL_TRC_IEC61966_2_4 = 11, ///< IEC 61966-2-4
- AVCOL_TRC_BT1361_ECG = 12, ///< ITU-R BT1361 Extended Colour Gamut
- AVCOL_TRC_IEC61966_2_1 = 13, ///< IEC 61966-2-1 (sRGB or sYCC)
- AVCOL_TRC_BT2020_10 = 14, ///< ITU-R BT2020 for 10 bit system
- AVCOL_TRC_BT2020_12 = 15, ///< ITU-R BT2020 for 12 bit system
- AVCOL_TRC_NB , ///< Not part of ABI
-};
-
-enum AVColorSpace{
- AVCOL_SPC_RGB = 0,
- AVCOL_SPC_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
- AVCOL_SPC_UNSPECIFIED = 2,
- AVCOL_SPC_FCC = 4,
- AVCOL_SPC_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
- AVCOL_SPC_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
- AVCOL_SPC_SMPTE240M = 7,
- AVCOL_SPC_YCOCG = 8, ///< Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
- AVCOL_SPC_BT2020_NCL = 9, ///< ITU-R BT2020 non-constant luminance system
- AVCOL_SPC_BT2020_CL = 10, ///< ITU-R BT2020 constant luminance system
- AVCOL_SPC_NB , ///< Not part of ABI
-};
-
-enum AVColorRange{
- AVCOL_RANGE_UNSPECIFIED = 0,
- AVCOL_RANGE_MPEG = 1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
- AVCOL_RANGE_JPEG = 2, ///< the normal 2^n-1 "JPEG" YUV ranges
- AVCOL_RANGE_NB , ///< Not part of ABI
-};
-
-/**
- * X X 3 4 X X are luma samples,
- * 1 2 1-6 are possible chroma positions
- * X X 5 6 X 0 is undefined/unknown position
- */
-enum AVChromaLocation{
- AVCHROMA_LOC_UNSPECIFIED = 0,
- AVCHROMA_LOC_LEFT = 1, ///< mpeg2/4, h264 default
- AVCHROMA_LOC_CENTER = 2, ///< mpeg1, jpeg, h263
- AVCHROMA_LOC_TOPLEFT = 3, ///< DV
- AVCHROMA_LOC_TOP = 4,
- AVCHROMA_LOC_BOTTOMLEFT = 5,
- AVCHROMA_LOC_BOTTOM = 6,
- AVCHROMA_LOC_NB , ///< Not part of ABI
-};
-
enum AVAudioServiceType {
AV_AUDIO_SERVICE_TYPE_MAIN = 0,
AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263.
#define CODEC_FLAG_OUTPUT_CORRUPT 0x0008 ///< Output even those frames that might be corrupted
#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC.
+#if FF_API_GMC
+/**
+ * @deprecated use the "gmc" private option of the libxvid encoder
+ */
#define CODEC_FLAG_GMC 0x0020 ///< Use GMC.
-#define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>.
+#endif
+#if FF_API_MV0
/**
- * 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.
+ * @deprecated use the flag "mv0" in the "mpv_flags" private option of the
+ * mpegvideo encoders
+ */
+#define CODEC_FLAG_MV0 0x0040
+#endif
+#if FF_API_INPUT_PRESERVED
+/**
+ * @deprecated passing reference-counted frames to the encoders replaces this
+ * flag
*/
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
+#endif
#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_GRAY 0x2000 ///< Only decode/encode grayscale.
#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.
+#if FF_API_NORMALIZE_AQP
+/**
+ * @deprecated use the flag "naq" in the "mpv_flags" private option of the
+ * mpegvideo encoders
+ */
+#define CODEC_FLAG_NORMALIZE_AQP 0x00020000
+#endif
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay.
#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe.
* @endcode
*/
AV_PKT_DATA_H263_MB_INFO,
+
+ /**
+ * This side data should be associated with an audio stream and contains
+ * ReplayGain information in form of the AVReplayGain struct.
+ */
+ AV_PKT_DATA_REPLAYGAIN,
+
+ /**
+ * This side data contains a 3x3 transformation matrix describing an affine
+ * transformation that needs to be applied to the decoded video frames for
+ * correct presentation.
+ *
+ * See libavutil/display.h for a detailed description of the data.
+ */
+ AV_PKT_DATA_DISPLAYMATRIX,
+
+ /**
+ * This side data should be associated with a video stream and contains
+ * Stereoscopic 3D information in form of the AVStereo3D struct.
+ */
+ AV_PKT_DATA_STEREO3D,
+
+ /**
+ * This side data should be associated with an audio stream and corresponds
+ * to enum AVAudioServiceType.
+ */
+ AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+
+ /**
+ * This side data contains an integer value representing the quality
+ * factor of the compressed frame. Allowed range is between 1 (good)
+ * and FF_LAMBDA_MAX (bad).
+ */
+ AV_PKT_DATA_QUALITY_FACTOR,
};
+typedef struct AVPacketSideData {
+ uint8_t *data;
+ int size;
+ enum AVPacketSideDataType type;
+} AVPacketSideData;
+
/**
* This structure stores compressed data. It is typically exported by demuxers
* and then passed as input to decoders, or received as output from encoders and
* Additional packet data that can be provided by the container.
* Packet can contain several types of side information.
*/
- struct {
- uint8_t *data;
- int size;
- enum AVPacketSideDataType type;
- } *side_data;
+ AVPacketSideData *side_data;
int side_data_elems;
/**
enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
const struct AVCodec *codec;
+#if FF_API_CODEC_NAME
+ /**
+ * @deprecated this field is not used for anything in libavcodec
+ */
+ attribute_deprecated
char codec_name[32];
+#endif
enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
/**
*/
unsigned int codec_tag;
+#if FF_API_STREAM_CODEC_TAG
/**
- * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
- * This is used to work around some encoder bugs.
- * - encoding: unused
- * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+ * @deprecated this field is unused
*/
+ attribute_deprecated
unsigned int stream_codec_tag;
+#endif
void *priv_data;
* timebase should be 1/framerate and timestamp increments should be
* identically 1.
* - encoding: MUST be set by user.
- * - decoding: Set by libavcodec.
+ * - decoding: the use of this field for decoding is deprecated.
+ * Use framerate instead.
*/
AVRational time_base;
* encoded input.
*
* Audio:
- * For encoding, this is the number of "priming" samples added to the
- * beginning of the stream. The decoded output will be delayed by this
- * many samples relative to the input to the encoder. Note that this
- * field is purely informational and does not directly affect the pts
- * output by the encoder, which should always be based on the actual
- * presentation time, including any delay.
+ * For encoding, this field is unused (see initial_padding).
+ *
* For decoding, this is the number of samples the decoder needs to
* output before the decoder's output is valid. When seeking, you should
* start decoding this many samples prior to your desired seek point.
/* video only */
/**
* picture width / height.
+ *
+ * @note Those fields may not match the values of the last
+ * AVFrame outputted by avcodec_decode_video2 due frame
+ * reordering.
+ *
* - encoding: MUST be set by user.
* - decoding: May be set by the user before opening the decoder if known e.g.
* from the container. Some decoders will require the dimensions
* to be set by the caller. During decoding, the decoder may
- * overwrite those values as required.
+ * overwrite those values as required while parsing the data.
*/
int width, height;
/**
* Bitstream width / height, may be different from width/height e.g. when
* the decoded frame is cropped before being output.
+ *
+ * @note Those field may not match the value of the last
+ * AVFrame outputted by avcodec_decode_video2 due frame
+ * reordering.
+ *
* - encoding: unused
* - decoding: May be set by the user before opening the decoder if known
* e.g. from the container. During decoding, the decoder may
- * overwrite those values as required.
+ * overwrite those values as required while parsing the data.
*/
int coded_width, coded_height;
* Pixel format, see AV_PIX_FMT_xxx.
* May be set by the demuxer if known from headers.
* May be overriden by the decoder if it knows better.
+ *
+ * @note This field may not match the value of the last
+ * AVFrame outputted by avcodec_decode_video2 due frame
+ * reordering.
+ *
* - encoding: Set by user.
- * - decoding: Set by user if known, overridden by libavcodec if known
+ * - decoding: Set by user if known, overridden by libavcodec while
+ * parsing the data.
*/
enum AVPixelFormat pix_fmt;
* @param fmt is the list of formats which are supported by the codec,
* it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
* The first is always the native one.
+ * @note The callback may be called again immediately if initialization for
+ * the selected (hardware-accelerated) pixel format failed.
+ * @warning Behavior is undefined if the callback returns a value not
+ * in the fmt list of formats.
* @return the chosen format
* - encoding: unused
* - decoding: Set by user, if not set the native format will be chosen.
*/
float b_quant_factor;
- /** obsolete FIXME remove */
- int rc_strategy;
+#if FF_API_RC_STRATEGY
+ /** @deprecated use codec private option instead */
+ attribute_deprecated int rc_strategy;
#define FF_RC_STRATEGY_XVID 1
+#endif
int b_frame_strategy;
*/
int me_subpel_quality;
+#if FF_API_AFD
/**
* DTG active format information (additional aspect ratio
* information only used in DVB MPEG-2 transport streams)
*
* - encoding: unused
* - decoding: Set by decoder.
+ * @deprecated Deprecated in favor of AVSideData
*/
- int dtg_active_format;
+ attribute_deprecated int dtg_active_format;
#define FF_DTG_AFD_SAME 8
#define FF_DTG_AFD_4_3 9
#define FF_DTG_AFD_16_9 10
#define FF_DTG_AFD_4_3_SP_14_9 13
#define FF_DTG_AFD_16_9_SP_14_9 14
#define FF_DTG_AFD_SP_4_3 15
+#endif /* FF_API_AFD */
/**
* maximum motion estimation search range in subpel units
*/
int me_range;
+#if FF_API_QUANT_BIAS
/**
- * intra quantizer bias
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private option instead
*/
- int intra_quant_bias;
+ attribute_deprecated int intra_quant_bias;
#define FF_DEFAULT_QUANT_BIAS 999999
/**
- * inter quantizer bias
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private option instead
*/
- int inter_quant_bias;
+ attribute_deprecated int inter_quant_bias;
+#endif
/**
* slice flags
*/
int noise_reduction;
+#if FF_API_MPV_OPT
/**
- * Motion estimation threshold below which no motion estimation is
- * performed, but instead the user specified motion vectors are used.
- *
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated this field is unused
*/
+ attribute_deprecated
int me_threshold;
/**
- * Macroblock threshold below which the user specified macroblock types will be used.
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated this field is unused
*/
+ attribute_deprecated
int mb_threshold;
+#endif
/**
* precision of the intra DC coefficient - 8
*/
int skip_bottom;
+#if FF_API_MPV_OPT
/**
- * Border processing masking, raises the quantizer for mbs on the borders
- * of the picture.
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
float border_masking;
+#endif
/**
* minimum MB lagrange multipler
*/
int chromaoffset;
+#if FF_API_UNUSED_MEMBERS
/**
* Multiplied by qscale for each frame and added to scene_change_score.
* - encoding: Set by user.
* - decoding: unused
*/
- int scenechange_factor;
+ attribute_deprecated int scenechange_factor;
+#endif
/**
*
*/
int max_qdiff;
+#if FF_API_MPV_OPT
/**
- * ratecontrol qmin qmax limiting method
- * 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
float rc_qsquish;
+ attribute_deprecated
float rc_qmod_amp;
+ attribute_deprecated
int rc_qmod_freq;
+#endif
/**
* decoder bitstream buffer size
int rc_override_count;
RcOverride *rc_override;
+#if FF_API_MPV_OPT
/**
- * rate control equation
- * - encoding: Set by user
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
const char *rc_eq;
+#endif
/**
* maximum bitrate
*/
int rc_min_rate;
- float rc_buffer_aggressivity;
-
+#if FF_API_MPV_OPT
/**
- * initial complexity for pass1 ratecontrol
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
+ float rc_buffer_aggressivity;
+
+ attribute_deprecated
float rc_initial_cplx;
+#endif
/**
* Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
#define FF_CODER_TYPE_AC 1
#define FF_CODER_TYPE_RAW 2
#define FF_CODER_TYPE_RLE 3
+#if FF_API_UNUSED_MEMBERS
#define FF_CODER_TYPE_DEFLATE 4
+#endif /* FF_API_UNUSED_MEMBERS */
/**
* coder type
* - encoding: Set by user.
*/
int context_model;
+#if FF_API_MPV_OPT
/**
- * minimum Lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
int lmin;
/**
- * maximum Lagrange multipler
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
int lmax;
+#endif
/**
* frame skip threshold
#define FF_DEBUG_DCT_COEFF 0x00000040
#define FF_DEBUG_SKIP 0x00000080
#define FF_DEBUG_STARTCODE 0x00000100
+#if FF_API_UNUSED_MEMBERS
#define FF_DEBUG_PTS 0x00000200
+#endif /* FF_API_UNUSED_MEMBERS */
#define FF_DEBUG_ER 0x00000400
#define FF_DEBUG_MMCO 0x00000800
#define FF_DEBUG_BUGS 0x00001000
/**
* opaque 64bit number (generally a PTS) that will be reordered and
* output in AVFrame.reordered_opaque
- * @deprecated in favor of pkt_pts
* - encoding: unused
* - decoding: Set by user.
*/
int dct_algo;
#define FF_DCT_AUTO 0
#define FF_DCT_FASTINT 1
+#if FF_API_UNUSED_MEMBERS
#define FF_DCT_INT 2
+#endif /* FF_API_UNUSED_MEMBERS */
#define FF_DCT_MMX 3
#define FF_DCT_ALTIVEC 5
#define FF_DCT_FAAN 6
#define FF_IDCT_SH4 9
#endif
#define FF_IDCT_SIMPLEARM 10
+#if FF_API_UNUSED_MEMBERS
#define FF_IDCT_IPP 13
+#endif /* FF_API_UNUSED_MEMBERS */
+#define FF_IDCT_XVID 14
+#if FF_API_IDCT_XVIDMMX
#define FF_IDCT_XVIDMMX 14
+#endif /* FF_API_IDCT_XVIDMMX */
#define FF_IDCT_SIMPLEARMV5TE 16
#define FF_IDCT_SIMPLEARMV6 17
#if FF_API_ARCH_SPARC
attribute_deprecated int lowres;
#endif
+#if FF_API_CODED_FRAME
/**
* the picture in the bitstream
* - encoding: Set by libavcodec.
* - decoding: unused
+ *
+ * @deprecated use the quality factor packet side data instead
*/
- AVFrame *coded_frame;
+ attribute_deprecated AVFrame *coded_frame;
+#endif
/**
* thread count
#define FF_PROFILE_DTS_96_24 40
#define FF_PROFILE_DTS_HD_HRA 50
#define FF_PROFILE_DTS_HD_MA 60
+#define FF_PROFILE_DTS_EXPRESS 70
#define FF_PROFILE_MPEG2_422 0
#define FF_PROFILE_MPEG2_HIGH 1
#define FF_PROFILE_JPEG2000_DCINEMA_2K 3
#define FF_PROFILE_JPEG2000_DCINEMA_4K 4
+#define FF_PROFILE_VP9_0 0
+#define FF_PROFILE_VP9_1 1
+#define FF_PROFILE_VP9_2 2
+#define FF_PROFILE_VP9_3 3
#define FF_PROFILE_HEVC_MAIN 1
#define FF_PROFILE_HEVC_MAIN_10 2
* - decoding: unused.
*/
uint64_t vbv_delay;
+
+ /**
+ * Encoding only. Allow encoders to output packets that do not contain any
+ * encoded data, only side data.
+ *
+ * Some encoders need to output such packets, e.g. to update some stream
+ * parameters at the end of encoding.
+ *
+ * All callers are strongly recommended to set this option to 1 and update
+ * their code to deal with such packets, since this behaviour may become
+ * always enabled in the future (then this option will be deprecated and
+ * later removed). To avoid ABI issues when this happens, the callers should
+ * use AVOptions to set this field.
+ */
+ int side_data_only_packets;
+
+ /**
+ * Audio only. The number of "priming" samples (padding) inserted by the
+ * encoder at the beginning of the audio. I.e. this number of leading
+ * decoded samples must be discarded by the caller to get the original audio
+ * without leading padding.
+ *
+ * - decoding: unused
+ * - encoding: Set by libavcodec. The timestamps on the output packets are
+ * adjusted by the encoder so that they always refer to the
+ * first sample of the data actually contained in the packet,
+ * including any added padding. E.g. if the timebase is
+ * 1/samplerate and the timestamp of the first input sample is
+ * 0, the timestamp of the first output packet will be
+ * -initial_padding.
+ */
+ int initial_padding;
+
+ /*
+ * - decoding: For codecs that store a framerate value in the compressed
+ * bitstream, the decoder may export it here. { 0, 1} when
+ * unknown.
+ * - encoding: unused
+ */
+ AVRational framerate;
+
+ /**
+ * Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
+ * - encoding: unused.
+ * - decoding: Set by libavcodec before calling get_format()
+ */
+ enum AVPixelFormat sw_pix_fmt;
} AVCodecContext;
/**
* Will be called when seeking
*/
void (*flush)(AVCodecContext *);
+ /**
+ * Internal codec capabilities.
+ * See FF_CODEC_CAP_* in internal.h
+ */
+ int caps_internal;
} AVCodec;
/**
- * AVHWAccel.
+ * @defgroup lavc_hwaccel AVHWAccel
+ * @{
*/
typedef struct AVHWAccel {
/**
*/
int capabilities;
+ /*****************************************************************
+ * No fields below this line are part of the public API. They
+ * may not be used outside of libavcodec and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
struct AVHWAccel *next;
+ /**
+ * Allocate a custom buffer
+ */
+ int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame);
+
/**
* Called at the beginning of each frame or field picture.
*
int (*end_frame)(AVCodecContext *avctx);
/**
- * Size of HW accelerator private data.
+ * Size of per-frame hardware accelerator private data.
*
* Private data is allocated with av_mallocz() before
* AVCodecContext.get_buffer() and deallocated after
* AVCodecContext.release_buffer().
*/
+ int frame_priv_data_size;
+
+ /**
+ * Initialize the hwaccel private data.
+ *
+ * This will be called from ff_get_format(), after hwaccel and
+ * hwaccel_context are set and the hwaccel private data in AVCodecInternal
+ * is allocated.
+ */
+ int (*init)(AVCodecContext *avctx);
+
+ /**
+ * Uninitialize the hwaccel private data.
+ *
+ * This will be called from get_format() or avcodec_close(), after hwaccel
+ * and hwaccel_context are already uninitialized.
+ */
+ int (*uninit)(AVCodecContext *avctx);
+
+ /**
+ * Size of the private data to allocate in
+ * AVCodecInternal.hwaccel_priv_data.
+ */
int priv_data_size;
} AVHWAccel;
+/**
+ * Hardware acceleration should be used for decoding even if the codec level
+ * used is unknown or higher than the maximum supported level reported by the
+ * hardware driver.
+ */
+#define AV_HWACCEL_FLAG_IGNORE_LEVEL (1 << 0)
+
+/**
+ * Hardware acceleration can output YUV pixel formats with a different chroma
+ * sampling than 4:2:0 and/or other than 8 bits per component.
+ */
+#define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH (1 << 1)
+
+/**
+ * @}
+ */
+
/**
* @defgroup lavc_picture AVPicture
*
void avcodec_register_all(void);
/**
- * Allocate an AVCodecContext and set its fields to default values. The
- * resulting struct can be deallocated by calling avcodec_close() on it followed
- * by av_free().
+ * Allocate an AVCodecContext and set its fields to default values. The
+ * resulting struct should be freed with avcodec_free_context().
*
* @param codec if non-NULL, allocate private data and initialize defaults
* for the given codec. It is illegal to then call avcodec_open2()
*/
AVCodecContext *avcodec_alloc_context3(const AVCodec *codec);
+/**
+ * Free the codec context and everything associated with it and write NULL to
+ * the provided pointer.
+ */
+void avcodec_free_context(AVCodecContext **avctx);
+
/**
* Set the fields of the given AVCodecContext to default values corresponding
* to the given codec (defaults may be codec-dependent).
*
* @warning This function is not thread safe!
*
+ * @note Always call this function before using decoding routines (such as
+ * @ref avcodec_decode_video2()).
+ *
* @code
* avcodec_register_all();
* av_dict_set(&opts, "b", "2.5M", 0);
*/
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
+/**
+ * Convert valid timing fields (timestamps / durations) in a packet from one
+ * timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
+ * ignored.
+ *
+ * @param pkt packet on which the conversion will be performed
+ * @param tb_src source timebase, in which the timing fields in pkt are
+ * expressed
+ * @param tb_dst destination timebase, to which the timing fields will be
+ * converted
+ */
+void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
+
/**
* @}
*/
* larger than the actual read bytes because some optimized bitstream
* readers read 32 or 64 bits at once and could read over the end.
*
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
* @param avctx the codec context
* @param[out] frame The AVFrame in which to store decoded audio samples.
* The decoder will allocate a buffer for the decoded frame by
* between input and output, these need to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to return the remaining frames.
*
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
* @param avctx the codec context
* @param[out] picture The AVFrame in which the decoded video frame will be stored.
* Use av_frame_alloc() to get an AVFrame. The codec will
* and reusing a get_buffer written for video codecs would probably perform badly
* due to a potentially very different allocation pattern.
*
+ * @note The AVCodecContext MUST have been opened with @ref avcodec_open2()
+ * before packets may be fed to the decoder.
+ *
* @param avctx the codec context
* @param[out] sub The AVSubtitle in which the decoded subtitle will be stored, must be
freed with avsubtitle_free if *got_sub_ptr is set.
* For example, this corresponds to H.264 PicOrderCnt.
*/
int output_picture_number;
+
+ /**
+ * Dimensions of the decoded video intended for presentation.
+ */
+ int width;
+ int height;
+
+ /**
+ * Dimensions of the coded video.
+ */
+ int coded_width;
+ int coded_height;
+
+ /**
+ * The format of the coded data, corresponds to enum AVPixelFormat for video
+ * and for enum AVSampleFormat for audio.
+ *
+ * Note that a decoder can have considerable freedom in how exactly it
+ * decodes the data, so the format reported here might be different from the
+ * one returned by a decoder.
+ */
+ int format;
} AVCodecParserContext;
typedef struct AVCodecParser {
int codec_ids[5]; /* several codec IDs are permitted */
int priv_data_size;
int (*parser_init)(AVCodecParserContext *s);
+ /* This callback never returns an error, a negative value means that
+ * the frame start was in a previous packet. */
int (*parser_parse)(AVCodecParserContext *s,
AVCodecContext *avctx,
const uint8_t **poutbuf, int *poutbuf_size,
struct AVCodecParser *next;
} AVCodecParser;
-AVCodecParser *av_parser_next(AVCodecParser *c);
+AVCodecParser *av_parser_next(const AVCodecParser *c);
void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);
void avpicture_free(AVPicture *picture);
/**
- * Fill in the AVPicture 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.
- * Call with ptr == NULL to get the required size for the ptr buffer.
+ * Fill in the AVPicture fields, always assume a linesize alignment of 1.
*
- * To allocate the buffer and fill in the AVPicture fields in one call,
- * use avpicture_alloc().
- *
- * @param picture AVPicture whose 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
+ * @see av_image_fill_arrays().
*/
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
enum AVPixelFormat pix_fmt, int width, int height);
/**
- * Copy pixel data from an AVPicture into a buffer.
- * The data is stored compactly, without any gaps for alignment or padding
- * which may be applied by avpicture_fill().
- *
- * @see avpicture_get_size()
+ * Copy pixel data from an AVPicture into a buffer, always assume a
+ * linesize alignment of 1.
*
- * @param[in] src AVPicture containing image data
- * @param[in] pix_fmt The format in which the picture data is stored.
- * @param[in] width the width of the image in pixels.
- * @param[in] height the height of the image in pixels.
- * @param[out] dest A buffer into which picture data will be copied.
- * @param[in] dest_size The size of 'dest'.
- * @return The number of bytes written to dest, or a negative value (error code) on error.
+ * @see av_image_copy_to_buffer().
*/
int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt,
int width, int height,
/**
* Calculate the size in bytes that a picture of the given width and height
* would occupy if stored in the given picture format.
- * Note that this returns the size of a compact representation as generated
- * by avpicture_layout(), which can be smaller than the size required for e.g.
- * avpicture_fill().
+ * Always assume a linesize alignment of 1.
*
- * @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 or -1 on error (e.g. too large dimensions).
+ * @see av_image_get_buffer_size().
*/
int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height);
const uint8_t *buf, int buf_size, int keyframe);
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
-AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);
+AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f);
/* memory */
* if hwaccel is non-NULL, returns the next registered hardware accelerator
* after hwaccel, or NULL if hwaccel is the last one.
*/
-AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel);
+AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel);
/**
/**
* Register a user provided lock manager supporting the operations
- * specified by AVLockOp. mutex points to a (void *) where the
- * lockmgr should store/get a pointer to a user allocated mutex. It's
- * NULL upon AV_LOCK_CREATE and != NULL for all other ops.
+ * specified by AVLockOp. The "mutex" argument to the function points
+ * to a (void *) where the lockmgr should store/get a pointer to a user
+ * allocated mutex. It is NULL upon AV_LOCK_CREATE and equal to the
+ * value left by the last call for all other ops. If the lock manager is
+ * unable to perform the op then it should leave the mutex in the same
+ * state as when it was called and return a non-zero value. However,
+ * when called with AV_LOCK_DESTROY the mutex will always be assumed to
+ * have been successfully destroyed. If av_lockmgr_register succeeds
+ * it will return a non-negative value, if it fails it will return a
+ * negative value and destroy all mutex and unregister all callbacks.
+ * av_lockmgr_register is not thread-safe, it must be called from a
+ * single thread before any calls which make use of locking are used.
*
- * @param cb User defined callback. Note: Libav may invoke calls to this
- * callback during the call to av_lockmgr_register().
- * Thus, the application must be prepared to handle that.
- * If cb is set to NULL the lockmgr will be unregistered.
- * Also note that during unregistration the previously registered
- * lockmgr callback may also be invoked.
+ * @param cb User defined callback. av_lockmgr_register invokes calls
+ * to this callback and the previously registered callback.
+ * The callback will be used to create more than one mutex
+ * each of which must be backed by its own underlying locking
+ * mechanism (i.e. do not use a single static object to
+ * implement your lock manager). If cb is set to NULL the
+ * lockmgr will be unregistered.
*/
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
projects / ffmpeg / blobdiff