#include "version.h"
-#if FF_API_FAST_MALLOC
-// to provide fast_*alloc
-#include "libavutil/mem.h"
-#endif
-
/**
* @defgroup libavc Encoding/Decoding Library
* @{
AV_CODEC_ID_HEVC = MKBETAG('H','2','6','5'),
#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
AV_CODEC_ID_VP7 = MKBETAG('V','P','7','0'),
+ AV_CODEC_ID_APNG = MKBETAG('A','P','N','G'),
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
AV_CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'),
AV_CODEC_ID_SAMI = MKBETAG('S','A','M','I'),
AV_CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'),
+ AV_CODEC_ID_STL = MKBETAG('S','p','T','L'),
AV_CODEC_ID_SUBVIEWER1 = MKBETAG('S','b','V','1'),
AV_CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'),
AV_CODEC_ID_SUBRIP = MKBETAG('S','R','i','p'),
/**
* 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;
#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
#define CODEC_FLAG2_SHOW_ALL 0x00400000 ///< Show all frames before the first keyframe
#define CODEC_FLAG2_EXPORT_MVS 0x10000000 ///< Export motion vectors through frame side data
+#define CODEC_FLAG2_SKIP_MANUAL 0x20000000 ///< Do not skip samples and export skip information as frame side data
/* Unsupported options :
* Syntax Arithmetic coding (SAC)
* of which frame timestamps are represented. For fixed-fps content,
* timebase should be 1/framerate and timestamp increments should be
* identically 1.
+ * This often, but not always is the inverse of the frame rate or field rate
+ * for video.
* - 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 by the
- * encoder to the beginning of the stream. The decoded output will be
- * delayed by this many samples relative to the input to the encoder (or
- * more, if the decoder adds its own padding).
- * 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
- * -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
* @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.
*/
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 max_qdiff;
+#if FF_API_MPV_OPT
/**
- * ratecontrol qmin qmax limiting method
- * 0-> clipping, 1-> use a nice continuous function to limit qscale within 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.
*/
int context_model;
+#if FF_API_MPV_OPT
/**
- * minimum Lagrange multiplier
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
int lmin;
/**
- * maximum Lagrange multiplier
- * - encoding: Set by user.
- * - decoding: unused
+ * @deprecated use encoder private options instead
*/
+ attribute_deprecated
int lmax;
+#endif
/**
* frame skip threshold
*/
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;
+
/**
* Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
* Code outside libavcodec should access this field using:
* - decoding: unused.
*/
uint16_t *chroma_intra_matrix;
+
+ /**
+ * dump format separator.
+ * can be ", " or "\n " or anything else
+ * Code outside libavcodec should access this field using AVOptions
+ * (NO direct access).
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ uint8_t *dump_separator;
+
+ /**
+ * ',' separated list of allowed decoders.
+ * If NULL then all are allowed
+ * - encoding: unused
+ * - decoding: set by user through AVOPtions (NO direct access)
+ */
+ char *codec_whitelist;
} AVCodecContext;
AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx);
struct MpegEncContext;
/**
- * AVHWAccel.
+ * @defgroup lavc_hwaccel AVHWAccel
+ * @{
*/
typedef struct AVHWAccel {
/**
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)
+
+/**
+ * @}
+ */
+
/**
* @defgroup lavc_picture AVPicture
*
/**
* 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.
- *
- * @param cb User defined callback. Note: FFmpeg 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.
+ * 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. 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));
repositories / deb_ffmpeg.git / blobdiff