diff options
Diffstat (limited to 'media/ffvpx/libavutil')
32 files changed, 1116 insertions, 480 deletions
diff --git a/media/ffvpx/libavutil/adler32.h b/media/ffvpx/libavutil/adler32.h index 0dc69ec0a..a1f035b73 100644 --- a/media/ffvpx/libavutil/adler32.h +++ b/media/ffvpx/libavutil/adler32.h @@ -18,6 +18,12 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +/** + * @file + * @ingroup lavu_adler32 + * Public header for Adler-32 hash function implementation. + */ + #ifndef AVUTIL_ADLER32_H #define AVUTIL_ADLER32_H @@ -25,11 +31,10 @@ #include "attributes.h" /** - * @file - * Public header for libavutil Adler32 hasher + * @defgroup lavu_adler32 Adler-32 + * @ingroup lavu_hash + * Adler-32 hash function implementation. * - * @defgroup lavu_adler32 Adler32 - * @ingroup lavu_crypto * @{ */ diff --git a/media/ffvpx/libavutil/avassert.h b/media/ffvpx/libavutil/avassert.h index f47363764..46f3fea58 100644 --- a/media/ffvpx/libavutil/avassert.h +++ b/media/ffvpx/libavutil/avassert.h @@ -59,8 +59,17 @@ */ #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1 #define av_assert2(cond) av_assert0(cond) +#define av_assert2_fpu() av_assert0_fpu() #else #define av_assert2(cond) ((void)0) +#define av_assert2_fpu() ((void)0) #endif +/** + * Assert that floating point opperations can be executed. + * + * This will av_assert0() that the cpu is not in MMX state on X86 + */ +void av_assert0_fpu(void); + #endif /* AVUTIL_AVASSERT_H */ diff --git a/media/ffvpx/libavutil/avconfig.h b/media/ffvpx/libavutil/avconfig.h index 36a8cd14d..2ec333d15 100644 --- a/media/ffvpx/libavutil/avconfig.h +++ b/media/ffvpx/libavutil/avconfig.h @@ -3,5 +3,5 @@ #define AVUTIL_AVCONFIG_H #define AV_HAVE_BIGENDIAN 0 #define AV_HAVE_FAST_UNALIGNED 1 -#define AV_HAVE_INCOMPATIBLE_LIBAV_ABI 0 +#define AV_HAVE_INCOMPATIBLE_FORK_ABI 0 #endif /* AVUTIL_AVCONFIG_H */ diff --git a/media/ffvpx/libavutil/avutil.h b/media/ffvpx/libavutil/avutil.h index c1f76c16e..29dd830bf 100644 --- a/media/ffvpx/libavutil/avutil.h +++ b/media/ffvpx/libavutil/avutil.h @@ -23,7 +23,8 @@ /** * @file - * external API header + * @ingroup lavu + * Convenience header that includes @ref lavu "libavutil"'s core. */ /** @@ -78,14 +79,15 @@ */ /** - * @defgroup lavu Common utility functions + * @defgroup lavu libavutil + * Common code shared across all FFmpeg libraries. * - * @brief - * libavutil contains the code shared across all the other FFmpeg - * libraries - * - * @note In order to use the functions provided by avutil you must include - * the specific header. + * @note + * libavutil is designed to be modular. In most cases, in order to use the + * functions provided by one component of libavutil you must explicitly include + * the specific header containing that feature. If you are only using + * media-related components, you could simply include libavutil/avutil.h, which + * brings in most of the "core" components. * * @{ * @@ -94,7 +96,7 @@ * @{ * @} * - * @defgroup lavu_math Maths + * @defgroup lavu_math Mathematics * @{ * * @} diff --git a/media/ffvpx/libavutil/avutil.symbols b/media/ffvpx/libavutil/avutil.symbols index ecd33c60a..81cf6a8ef 100644 --- a/media/ffvpx/libavutil/avutil.symbols +++ b/media/ffvpx/libavutil/avutil.symbols @@ -162,6 +162,7 @@ av_get_token av_gettime av_gettime_relative av_gettime_relative_is_monotonic +av_hwframe_get_buffer av_image_alloc av_image_check_sar av_image_check_size diff --git a/media/ffvpx/libavutil/crc.h b/media/ffvpx/libavutil/crc.h index ef8a7137e..2a1b0d762 100644 --- a/media/ffvpx/libavutil/crc.h +++ b/media/ffvpx/libavutil/crc.h @@ -18,6 +18,12 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +/** + * @file + * @ingroup lavu_crc32 + * Public header for CRC hash function implementation. + */ + #ifndef AVUTIL_CRC_H #define AVUTIL_CRC_H @@ -27,8 +33,14 @@ #include "version.h" /** - * @defgroup lavu_crc32 CRC32 - * @ingroup lavu_crypto + * @defgroup lavu_crc32 CRC + * @ingroup lavu_hash + * CRC (Cyclic Redundancy Check) hash function implementation. + * + * This module supports numerous CRC polynomials, in addition to the most + * widely used CRC-32-IEEE. See @ref AVCRCId for a list of available + * polynomials. + * * @{ */ diff --git a/media/ffvpx/libavutil/dict.c b/media/ffvpx/libavutil/dict.c index f70c7e005..0ea71386e 100644 --- a/media/ffvpx/libavutil/dict.c +++ b/media/ffvpx/libavutil/dict.c @@ -24,6 +24,7 @@ #include "dict.h" #include "internal.h" #include "mem.h" +#include "time_internal.h" #include "bprint.h" struct AVDictionary { @@ -253,3 +254,19 @@ int av_dict_get_string(const AVDictionary *m, char **buffer, } return av_bprint_finalize(&bprint, buffer); } + +int avpriv_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp) +{ + time_t seconds = timestamp / 1000000; + struct tm *ptm, tmbuf; + ptm = gmtime_r(&seconds, &tmbuf); + if (ptm) { + char buf[32]; + if (!strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S", ptm)) + return AVERROR_EXTERNAL; + av_strlcatf(buf, sizeof(buf), ".%06dZ", (int)(timestamp % 1000000)); + return av_dict_set(dict, key, buf, 0); + } else { + return AVERROR_EXTERNAL; + } +} diff --git a/media/ffvpx/libavutil/dummy_funcs.c b/media/ffvpx/libavutil/dummy_funcs.c index dc13fe3a4..2ea84a140 100644 --- a/media/ffvpx/libavutil/dummy_funcs.c +++ b/media/ffvpx/libavutil/dummy_funcs.c @@ -79,3 +79,5 @@ int av_opt_is_set_to_default(void *obj, const AVOption *o) { return 0; } int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags) { return 0; } int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer, const char key_val_sep, const char pairs_sep) { return 0; } + +int av_hwframe_get_buffer(struct AVBufferRef* hwframe_ref, struct AVFrame* frame, int flags) { return 0; } diff --git a/media/ffvpx/libavutil/dynarray.h b/media/ffvpx/libavutil/dynarray.h index 4947d93dc..034a9fedf 100644 --- a/media/ffvpx/libavutil/dynarray.h +++ b/media/ffvpx/libavutil/dynarray.h @@ -42,7 +42,7 @@ * array and size are not changed; the statement can end * with a return or a goto */ -#define AV_DYNARRAY_ADD(av_size_max, av_elt_size, av_array, av_size, \ +#define FF_DYNARRAY_ADD(av_size_max, av_elt_size, av_array, av_size, \ av_success, av_failure) \ do { \ size_t av_size_new = (av_size); \ diff --git a/media/ffvpx/libavutil/frame.c b/media/ffvpx/libavutil/frame.c index d5c7c9f32..53e617422 100644 --- a/media/ffvpx/libavutil/frame.c +++ b/media/ffvpx/libavutil/frame.c @@ -99,12 +99,16 @@ static void get_frame_defaults(AVFrame *frame) memset(frame, 0, sizeof(*frame)); frame->pts = - frame->pkt_dts = + frame->pkt_dts = AV_NOPTS_VALUE; +#if FF_API_PKT_PTS +FF_DISABLE_DEPRECATION_WARNINGS frame->pkt_pts = AV_NOPTS_VALUE; - av_frame_set_best_effort_timestamp(frame, AV_NOPTS_VALUE); - av_frame_set_pkt_duration (frame, 0); - av_frame_set_pkt_pos (frame, -1); - av_frame_set_pkt_size (frame, -1); +FF_ENABLE_DEPRECATION_WARNINGS +#endif + frame->best_effort_timestamp = AV_NOPTS_VALUE; + frame->pkt_duration = 0; + frame->pkt_pos = -1; + frame->pkt_size = -1; frame->key_frame = 1; frame->sample_aspect_ratio = (AVRational){ 0, 1 }; frame->format = -1; /* unknown */ @@ -114,6 +118,7 @@ static void get_frame_defaults(AVFrame *frame) frame->colorspace = AVCOL_SPC_UNSPECIFIED; frame->color_range = AVCOL_RANGE_UNSPECIFIED; frame->chroma_location = AVCHROMA_LOC_UNSPECIFIED; + frame->flags = 0; } static void free_side_data(AVFrameSideData **ptr_sd) @@ -294,7 +299,11 @@ static int frame_copy_props(AVFrame *dst, const AVFrame *src, int force_copy) dst->palette_has_changed = src->palette_has_changed; dst->sample_rate = src->sample_rate; dst->opaque = src->opaque; +#if FF_API_PKT_PTS +FF_DISABLE_DEPRECATION_WARNINGS dst->pkt_pts = src->pkt_pts; +FF_ENABLE_DEPRECATION_WARNINGS +#endif dst->pkt_dts = src->pkt_dts; dst->pkt_pos = src->pkt_pos; dst->pkt_size = src->pkt_size; diff --git a/media/ffvpx/libavutil/frame.h b/media/ffvpx/libavutil/frame.h index 2b5c3320c..8e51361e2 100644 --- a/media/ffvpx/libavutil/frame.h +++ b/media/ffvpx/libavutil/frame.h @@ -178,7 +178,7 @@ typedef struct AVFrameSideData { * without breaking compatibility with each other. * * Fields can be accessed through AVOptions, the name string used, matches the - * C structure field name for fields accessable through AVOptions. The AVClass + * C structure field name for fields accessible through AVOptions. The AVClass * for AVFrame can be obtained from avcodec_get_frame_class() */ typedef struct AVFrame { @@ -267,10 +267,14 @@ typedef struct AVFrame { */ int64_t pts; +#if FF_API_PKT_PTS /** * PTS copied from the AVPacket that was decoded to produce this frame. + * @deprecated use the pts field instead */ + attribute_deprecated int64_t pkt_pts; +#endif /** * DTS copied from the AVPacket that triggered returning this frame. (if frame threading isn't used) @@ -385,6 +389,7 @@ typedef struct AVFrame { /** * @defgroup lavu_frame_flags AV_FRAME_FLAGS + * @ingroup lavu_frame * Flags describing additional frame properties. * * @{ @@ -395,6 +400,10 @@ typedef struct AVFrame { */ #define AV_FRAME_FLAG_CORRUPT (1 << 0) /** + * A flag to mark the frames which need to be decoded, but shouldn't be output. + */ +#define AV_FRAME_FLAG_DISCARD (1 << 2) +/** * @} */ diff --git a/media/ffvpx/libavutil/hwcontext.h b/media/ffvpx/libavutil/hwcontext.h index 4e9da0224..5e2af092a 100644 --- a/media/ffvpx/libavutil/hwcontext.h +++ b/media/ffvpx/libavutil/hwcontext.h @@ -29,6 +29,7 @@ enum AVHWDeviceType { AV_HWDEVICE_TYPE_CUDA, AV_HWDEVICE_TYPE_VAAPI, AV_HWDEVICE_TYPE_DXVA2, + AV_HWDEVICE_TYPE_QSV, }; typedef struct AVHWDeviceInternal AVHWDeviceInternal; diff --git a/media/ffvpx/libavutil/internal.h b/media/ffvpx/libavutil/internal.h index 61784b512..e995af97e 100644 --- a/media/ffvpx/libavutil/internal.h +++ b/media/ffvpx/libavutil/internal.h @@ -330,6 +330,16 @@ static av_always_inline av_const int avpriv_mirror(int x, int w) void ff_check_pixfmt_descriptors(void); +/** + * Set a dictionary value to an ISO-8601 compliant timestamp string. + * + * @param s AVFormatContext + * @param key metadata key + * @param timestamp unix timestamp in microseconds + * @return <0 on error + */ +int avpriv_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp); + extern const uint8_t ff_reverse[256]; #endif /* AVUTIL_INTERNAL_H */ diff --git a/media/ffvpx/libavutil/log.h b/media/ffvpx/libavutil/log.h index 0acc1b921..f0a57385d 100644 --- a/media/ffvpx/libavutil/log.h +++ b/media/ffvpx/libavutil/log.h @@ -44,7 +44,7 @@ typedef enum { AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT, AV_CLASS_CATEGORY_DEVICE_OUTPUT, AV_CLASS_CATEGORY_DEVICE_INPUT, - AV_CLASS_CATEGORY_NB, ///< not part of ABI/API + AV_CLASS_CATEGORY_NB ///< not part of ABI/API }AVClassCategory; #define AV_IS_INPUT_DEVICE(category) \ diff --git a/media/ffvpx/libavutil/mathematics.h b/media/ffvpx/libavutil/mathematics.h index 57c44f845..54901800b 100644 --- a/media/ffvpx/libavutil/mathematics.h +++ b/media/ffvpx/libavutil/mathematics.h @@ -18,6 +18,12 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +/** + * @file + * @addtogroup lavu_math + * Mathematical utilities for working with timestamp and time base. + */ + #ifndef AVUTIL_MATHEMATICS_H #define AVUTIL_MATHEMATICS_H @@ -63,84 +69,155 @@ /** * @addtogroup lavu_math + * * @{ */ - +/** + * Rounding methods. + */ enum AVRounding { AV_ROUND_ZERO = 0, ///< Round toward zero. AV_ROUND_INF = 1, ///< Round away from zero. AV_ROUND_DOWN = 2, ///< Round toward -infinity. AV_ROUND_UP = 3, ///< Round toward +infinity. AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero. - AV_ROUND_PASS_MINMAX = 8192, ///< Flag to pass INT64_MIN/MAX through instead of rescaling, this avoids special cases for AV_NOPTS_VALUE + /** + * Flag telling rescaling functions to pass `INT64_MIN`/`MAX` through + * unchanged, avoiding special cases for #AV_NOPTS_VALUE. + * + * Unlike other values of the enumeration AVRounding, this value is a + * bitmask that must be used in conjunction with another value of the + * enumeration through a bitwise OR, in order to set behavior for normal + * cases. + * + * @code{.c} + * av_rescale_rnd(3, 1, 2, AV_ROUND_UP | AV_ROUND_PASS_MINMAX); + * // Rescaling 3: + * // Calculating 3 * 1 / 2 + * // 3 / 2 is rounded up to 2 + * // => 2 + * + * av_rescale_rnd(AV_NOPTS_VALUE, 1, 2, AV_ROUND_UP | AV_ROUND_PASS_MINMAX); + * // Rescaling AV_NOPTS_VALUE: + * // AV_NOPTS_VALUE == INT64_MIN + * // AV_NOPTS_VALUE is passed through + * // => AV_NOPTS_VALUE + * @endcode + */ + AV_ROUND_PASS_MINMAX = 8192, }; /** - * Compute the greatest common divisor of a and b. + * Compute the greatest common divisor of two integer operands. * - * @return gcd of a and b up to sign; if a >= 0 and b >= 0, return value is >= 0; + * @param a,b Operands + * @return GCD of a and b up to sign; if a >= 0 and b >= 0, return value is >= 0; * if a == 0 and b == 0, returns 0. */ int64_t av_const av_gcd(int64_t a, int64_t b); /** * Rescale a 64-bit integer with rounding to nearest. - * A simple a*b/c isn't possible as it can overflow. + * + * The operation is mathematically equivalent to `a * b / c`, but writing that + * directly can overflow. + * + * This function is equivalent to av_rescale_rnd() with #AV_ROUND_NEAR_INF. + * + * @see av_rescale_rnd(), av_rescale_q(), av_rescale_q_rnd() */ int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const; /** * Rescale a 64-bit integer with specified rounding. - * A simple a*b/c isn't possible as it can overflow. * - * @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is - * INT64_MIN or INT64_MAX then a is passed through unchanged. + * The operation is mathematically equivalent to `a * b / c`, but writing that + * directly can overflow, and does not support different rounding methods. + * + * @see av_rescale(), av_rescale_q(), av_rescale_q_rnd() */ -int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const; +int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd) av_const; /** * Rescale a 64-bit integer by 2 rational numbers. + * + * The operation is mathematically equivalent to `a * bq / cq`. + * + * This function is equivalent to av_rescale_q_rnd() with #AV_ROUND_NEAR_INF. + * + * @see av_rescale(), av_rescale_rnd(), av_rescale_q_rnd() */ int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const; /** * Rescale a 64-bit integer by 2 rational numbers with specified rounding. * - * @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is - * INT64_MIN or INT64_MAX then a is passed through unchanged. + * The operation is mathematically equivalent to `a * bq / cq`. + * + * @see av_rescale(), av_rescale_rnd(), av_rescale_q() */ int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq, - enum AVRounding) av_const; + enum AVRounding rnd) av_const; /** - * Compare 2 timestamps each in its own timebases. - * The result of the function is undefined if one of the timestamps - * is outside the int64_t range when represented in the others timebase. - * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position + * Compare two timestamps each in its own time base. + * + * @return One of the following values: + * - -1 if `ts_a` is before `ts_b` + * - 1 if `ts_a` is after `ts_b` + * - 0 if they represent the same position + * + * @warning + * The result of the function is undefined if one of the timestamps is outside + * the `int64_t` range when represented in the other's timebase. */ int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b); /** - * Compare 2 integers modulo mod. - * That is we compare integers a and b for which only the least - * significant log2(mod) bits are known. - * - * @param mod must be a power of 2 - * @return a negative value if a is smaller than b - * a positive value if a is greater than b - * 0 if a equals b + * Compare the remainders of two integer operands divided by a common divisor. + * + * In other words, compare the least significant `log2(mod)` bits of integers + * `a` and `b`. + * + * @code{.c} + * av_compare_mod(0x11, 0x02, 0x10) < 0 // since 0x11 % 0x10 (0x1) < 0x02 % 0x10 (0x2) + * av_compare_mod(0x11, 0x02, 0x20) > 0 // since 0x11 % 0x20 (0x11) > 0x02 % 0x20 (0x02) + * @endcode + * + * @param a,b Operands + * @param mod Divisor; must be a power of 2 + * @return + * - a negative value if `a % mod < b % mod` + * - a positive value if `a % mod > b % mod` + * - zero if `a % mod == b % mod` */ int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod); /** * Rescale a timestamp while preserving known durations. * - * @param in_ts Input timestamp - * @param in_tb Input timebase - * @param fs_tb Duration and *last timebase - * @param duration duration till the next call - * @param out_tb Output timebase + * This function is designed to be called per audio packet to scale the input + * timestamp to a different time base. Compared to a simple av_rescale_q() + * call, this function is robust against possible inconsistent frame durations. + * + * The `last` parameter is a state variable that must be preserved for all + * subsequent calls for the same stream. For the first call, `*last` should be + * initialized to #AV_NOPTS_VALUE. + * + * @param[in] in_tb Input time base + * @param[in] in_ts Input timestamp + * @param[in] fs_tb Duration time base; typically this is finer-grained + * (greater) than `in_tb` and `out_tb` + * @param[in] duration Duration till the next call to this function (i.e. + * duration of the current packet/frame) + * @param[in,out] last Pointer to a timestamp expressed in terms of + * `fs_tb`, acting as a state variable + * @param[in] out_tb Output timebase + * @return Timestamp expressed in terms of `out_tb` + * + * @note In the context of this function, "duration" is in term of samples, not + * seconds. */ int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb); @@ -150,15 +227,15 @@ int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int * This function guarantees that when the same value is repeatly added that * no accumulation of rounding errors occurs. * - * @param ts Input timestamp - * @param ts_tb Input timestamp timebase - * @param inc value to add to ts - * @param inc_tb inc timebase + * @param[in] ts Input timestamp + * @param[in] ts_tb Input timestamp time base + * @param[in] inc Value to be added + * @param[in] inc_tb Time base of `inc` */ int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc); - /** +/** * @} */ diff --git a/media/ffvpx/libavutil/mem.c b/media/ffvpx/libavutil/mem.c index 8dfaad827..1a8fc21e9 100644 --- a/media/ffvpx/libavutil/mem.c +++ b/media/ffvpx/libavutil/mem.c @@ -179,7 +179,7 @@ void *av_realloc_f(void *ptr, size_t nelem, size_t elsize) return NULL; } r = av_realloc(ptr, size); - if (!r && size) + if (!r) av_free(ptr); return r; } @@ -312,7 +312,7 @@ int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem) void **tab; memcpy(&tab, tab_ptr, sizeof(tab)); - AV_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, { + FF_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, { tab[*nb_ptr] = elem; memcpy(tab_ptr, &tab, sizeof(tab)); }, { @@ -326,7 +326,7 @@ void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem) void **tab; memcpy(&tab, tab_ptr, sizeof(tab)); - AV_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, { + FF_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, { tab[*nb_ptr] = elem; memcpy(tab_ptr, &tab, sizeof(tab)); }, { @@ -340,7 +340,7 @@ void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size, { uint8_t *tab_elem_data = NULL; - AV_DYNARRAY_ADD(INT_MAX, elem_size, *tab_ptr, *nb_ptr, { + FF_DYNARRAY_ADD(INT_MAX, elem_size, *tab_ptr, *nb_ptr, { tab_elem_data = (uint8_t *)*tab_ptr + (*nb_ptr) * elem_size; if (elem_data) memcpy(tab_elem_data, elem_data, elem_size); diff --git a/media/ffvpx/libavutil/mem.h b/media/ffvpx/libavutil/mem.h index d25b3229b..f9d888478 100644 --- a/media/ffvpx/libavutil/mem.h +++ b/media/ffvpx/libavutil/mem.h @@ -20,7 +20,8 @@ /** * @file - * memory handling functions + * @ingroup lavu_mem + * Memory handling functions */ #ifndef AVUTIL_MEM_H @@ -35,9 +36,56 @@ /** * @addtogroup lavu_mem + * Utilities for manipulating memory. + * + * FFmpeg has several applications of memory that are not required of a typical + * program. For example, the computing-heavy components like video decoding and + * encoding can be sped up significantly through the use of aligned memory. + * + * However, for each of FFmpeg's applications of memory, there might not be a + * recognized or standardized API for that specific use. Memory alignment, for + * instance, varies wildly depending on operating systems, architectures, and + * compilers. Hence, this component of @ref libavutil is created to make + * dealing with memory consistently possible on all platforms. + * * @{ + * + * @defgroup lavu_mem_macros Alignment Macros + * Helper macros for declaring aligned variables. + * @{ + */ + +/** + * @def DECLARE_ALIGNED(n,t,v) + * Declare a variable that is aligned in memory. + * + * @code{.c} + * DECLARE_ALIGNED(16, uint16_t, aligned_int) = 42; + * DECLARE_ALIGNED(32, uint8_t, aligned_array)[128]; + * + * // The default-alignment equivalent would be + * uint16_t aligned_int = 42; + * uint8_t aligned_array[128]; + * @endcode + * + * @param n Minimum alignment in bytes + * @param t Type of the variable (or array element) + * @param v Name of the variable */ +/** + * @def DECLARE_ASM_CONST(n,t,v) + * Declare a static constant aligned variable appropriate for use in inline + * assembly code. + * + * @code{.c} + * DECLARE_ASM_CONST(16, uint64_t, pw_08) = UINT64_C(0x0008000800080008); + * @endcode + * + * @param n Minimum alignment in bytes + * @param t Type of the variable (or array element) + * @param v Name of the variable + */ #if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1110 || defined(__SUNPRO_C) #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v @@ -60,12 +108,47 @@ #define DECLARE_ASM_CONST(n,t,v) static const t v #endif +/** + * @} + */ + +/** + * @defgroup lavu_mem_attrs Function Attributes + * Function attributes applicable to memory handling functions. + * + * These function attributes can help compilers emit more useful warnings, or + * generate better code. + * @{ + */ + +/** + * @def av_malloc_attrib + * Function attribute denoting a malloc-like function. + * + * @see <a href="https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007bmalloc_007d-function-attribute-3251">Function attribute `malloc` in GCC's documentation</a> + */ + #if AV_GCC_VERSION_AT_LEAST(3,1) #define av_malloc_attrib __attribute__((__malloc__)) #else #define av_malloc_attrib #endif +/** + * @def av_alloc_size(...) + * Function attribute used on a function that allocates memory, whose size is + * given by the specified parameter(s). + * + * @code{.c} + * void *av_malloc(size_t size) av_alloc_size(1); + * void *av_calloc(size_t nmemb, size_t size) av_alloc_size(1, 2); + * @endcode + * + * @param ... One or two parameter indexes, separated by a comma + * + * @see <a href="https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007balloc_005fsize_007d-function-attribute-3220">Function attribute `alloc_size` in GCC's documentation</a> + */ + #if AV_GCC_VERSION_AT_LEAST(4,3) #define av_alloc_size(...) __attribute__((alloc_size(__VA_ARGS__))) #else @@ -73,21 +156,51 @@ #endif /** - * Allocate a block of size bytes with alignment suitable for all - * memory accesses (including vectors if available on the CPU). - * @param size Size in bytes for the memory block to be allocated. - * @return Pointer to the allocated block, NULL if the block cannot - * be allocated. + * @} + */ + +/** + * @defgroup lavu_mem_funcs Heap Management + * Functions responsible for allocating, freeing, and copying memory. + * + * All memory allocation functions have a built-in upper limit of `INT_MAX` + * bytes. This may be changed with av_max_alloc(), although exercise extreme + * caution when doing so. + * + * @{ + */ + +/** + * Allocate a memory block with alignment suitable for all memory accesses + * (including vectors if available on the CPU). + * + * @param size Size in bytes for the memory block to be allocated + * @return Pointer to the allocated block, or `NULL` if the block cannot + * be allocated * @see av_mallocz() */ void *av_malloc(size_t size) av_malloc_attrib av_alloc_size(1); /** - * Allocate a block of size * nmemb bytes with av_malloc(). - * @param nmemb Number of elements - * @param size Size of the single element - * @return Pointer to the allocated block, NULL if the block cannot - * be allocated. + * Allocate a memory block with alignment suitable for all memory accesses + * (including vectors if available on the CPU) and zero all the bytes of the + * block. + * + * @param size Size in bytes for the memory block to be allocated + * @return Pointer to the allocated block, or `NULL` if it cannot be allocated + * @see av_malloc() + */ +void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1); + +/** + * Allocate a memory block for an array with av_malloc(). + * + * The allocated memory will have size `size * nmemb` bytes. + * + * @param nmemb Number of element + * @param size Size of a single element + * @return Pointer to the allocated block, or `NULL` if the block cannot + * be allocated * @see av_malloc() */ av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t size) @@ -98,179 +211,378 @@ av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t siz } /** - * Allocate or reallocate a block of memory. - * If ptr is NULL and size > 0, allocate a new block. If - * size is zero, free the memory block pointed to by ptr. - * @param ptr Pointer to a memory block already allocated with - * av_realloc() or NULL. + * Allocate a memory block for an array with av_mallocz(). + * + * The allocated memory will have size `size * nmemb` bytes. + * + * @param nmemb Number of elements + * @param size Size of the single element + * @return Pointer to the allocated block, or `NULL` if the block cannot + * be allocated + * + * @see av_mallocz() + * @see av_malloc_array() + */ +av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size) +{ + if (!size || nmemb >= INT_MAX / size) + return NULL; + return av_mallocz(nmemb * size); +} + +/** + * Non-inlined equivalent of av_mallocz_array(). + * + * Created for symmetry with the calloc() C function. + */ +void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib; + +/** + * Allocate, reallocate, or free a block of memory. + * + * If `ptr` is `NULL` and `size` > 0, allocate a new block. If `size` is + * zero, free the memory block pointed to by `ptr`. Otherwise, expand or + * shrink that block of memory according to `size`. + * + * @param ptr Pointer to a memory block already allocated with + * av_realloc() or `NULL` * @param size Size in bytes of the memory block to be allocated or - * reallocated. - * @return Pointer to a newly-reallocated block or NULL if the block - * cannot be reallocated or the function is used to free the memory block. - * @warning Pointers originating from the av_malloc() family of functions must - * not be passed to av_realloc(). The former can be implemented using - * memalign() (or other functions), and there is no guarantee that - * pointers from such functions can be passed to realloc() at all. - * The situation is undefined according to POSIX and may crash with - * some libc implementations. + * reallocated + * + * @return Pointer to a newly-reallocated block or `NULL` if the block + * cannot be reallocated or the function is used to free the memory block + * + * @warning Unlike av_malloc(), the returned pointer is not guaranteed to be + * correctly aligned. * @see av_fast_realloc() + * @see av_reallocp() */ void *av_realloc(void *ptr, size_t size) av_alloc_size(2); /** - * Allocate or reallocate a block of memory. - * This function does the same thing as av_realloc, except: - * - It takes two arguments and checks the result of the multiplication for - * integer overflow. - * - It frees the input block in case of failure, thus avoiding the memory - * leak with the classic "buf = realloc(buf); if (!buf) return -1;". + * Allocate, reallocate, or free a block of memory through a pointer to a + * pointer. + * + * If `*ptr` is `NULL` and `size` > 0, allocate a new block. If `size` is + * zero, free the memory block pointed to by `*ptr`. Otherwise, expand or + * shrink that block of memory according to `size`. + * + * @param[in,out] ptr Pointer to a pointer to a memory block already allocated + * with av_realloc(), or a pointer to `NULL`. The pointer + * is updated on success, or freed on failure. + * @param[in] size Size in bytes for the memory block to be allocated or + * reallocated + * + * @return Zero on success, an AVERROR error code on failure + * + * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be + * correctly aligned. */ -void *av_realloc_f(void *ptr, size_t nelem, size_t elsize); +av_warn_unused_result +int av_reallocp(void *ptr, size_t size); /** - * Allocate or reallocate a block of memory. - * If *ptr is NULL and size > 0, allocate a new block. If - * size is zero, free the memory block pointed to by ptr. - * @param ptr Pointer to a pointer to a memory block already allocated - * with av_realloc(), or pointer to a pointer to NULL. - * The pointer is updated on success, or freed on failure. - * @param size Size in bytes for the memory block to be allocated or - * reallocated - * @return Zero on success, an AVERROR error code on failure. - * @warning Pointers originating from the av_malloc() family of functions must - * not be passed to av_reallocp(). The former can be implemented using - * memalign() (or other functions), and there is no guarantee that - * pointers from such functions can be passed to realloc() at all. - * The situation is undefined according to POSIX and may crash with - * some libc implementations. + * Allocate, reallocate, or free a block of memory. + * + * This function does the same thing as av_realloc(), except: + * - It takes two size arguments and allocates `nelem * elsize` bytes, + * after checking the result of the multiplication for integer overflow. + * - It frees the input block in case of failure, thus avoiding the memory + * leak with the classic + * @code{.c} + * buf = realloc(buf); + * if (!buf) + * return -1; + * @endcode + * pattern. */ -av_warn_unused_result -int av_reallocp(void *ptr, size_t size); +void *av_realloc_f(void *ptr, size_t nelem, size_t elsize); /** - * Allocate or reallocate an array. - * If ptr is NULL and nmemb > 0, allocate a new block. If - * nmemb is zero, free the memory block pointed to by ptr. - * @param ptr Pointer to a memory block already allocated with - * av_realloc() or NULL. - * @param nmemb Number of elements - * @param size Size of the single element + * Allocate, reallocate, or free an array. + * + * If `ptr` is `NULL` and `nmemb` > 0, allocate a new block. If + * `nmemb` is zero, free the memory block pointed to by `ptr`. + * + * @param ptr Pointer to a memory block already allocated with + * av_realloc() or `NULL` + * @param nmemb Number of elements in the array + * @param size Size of the single element of the array + * * @return Pointer to a newly-reallocated block or NULL if the block - * cannot be reallocated or the function is used to free the memory block. - * @warning Pointers originating from the av_malloc() family of functions must - * not be passed to av_realloc(). The former can be implemented using - * memalign() (or other functions), and there is no guarantee that - * pointers from such functions can be passed to realloc() at all. - * The situation is undefined according to POSIX and may crash with - * some libc implementations. + * cannot be reallocated or the function is used to free the memory block + * + * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be + * correctly aligned. + * @see av_reallocp_array() */ av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size); /** - * Allocate or reallocate an array through a pointer to a pointer. - * If *ptr is NULL and nmemb > 0, allocate a new block. If - * nmemb is zero, free the memory block pointed to by ptr. - * @param ptr Pointer to a pointer to a memory block already allocated - * with av_realloc(), or pointer to a pointer to NULL. - * The pointer is updated on success, or freed on failure. - * @param nmemb Number of elements - * @param size Size of the single element - * @return Zero on success, an AVERROR error code on failure. - * @warning Pointers originating from the av_malloc() family of functions must - * not be passed to av_realloc(). The former can be implemented using - * memalign() (or other functions), and there is no guarantee that - * pointers from such functions can be passed to realloc() at all. - * The situation is undefined according to POSIX and may crash with - * some libc implementations. + * Allocate, reallocate, or free an array through a pointer to a pointer. + * + * If `*ptr` is `NULL` and `nmemb` > 0, allocate a new block. If `nmemb` is + * zero, free the memory block pointed to by `*ptr`. + * + * @param[in,out] ptr Pointer to a pointer to a memory block already + * allocated with av_realloc(), or a pointer to `NULL`. + * The pointer is updated on success, or freed on failure. + * @param[in] nmemb Number of elements + * @param[in] size Size of the single element + * + * @return Zero on success, an AVERROR error code on failure + * + * @warning Unlike av_malloc(), the allocated memory is not guaranteed to be + * correctly aligned. */ av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size); /** - * Free a memory block which has been allocated with av_malloc(z)() or - * av_realloc(). - * @param ptr Pointer to the memory block which should be freed. - * @note ptr = NULL is explicitly allowed. - * @note It is recommended that you use av_freep() instead. - * @see av_freep() + * Reallocate the given buffer if it is not large enough, otherwise do nothing. + * + * If the given buffer is `NULL`, then a new uninitialized buffer is allocated. + * + * If the given buffer is not large enough, and reallocation fails, `NULL` is + * returned and `*size` is set to 0, but the original buffer is not changed or + * freed. + * + * A typical use pattern follows: + * + * @code{.c} + * uint8_t *buf = ...; + * uint8_t *new_buf = av_fast_realloc(buf, ¤t_size, size_needed); + * if (!new_buf) { + * // Allocation failed; clean up original buffer + * av_freep(&buf); + * return AVERROR(ENOMEM); + * } + * @endcode + * + * @param[in,out] ptr Already allocated buffer, or `NULL` + * @param[in,out] size Pointer to current size of buffer `ptr`. `*size` is + * changed to `min_size` in case of success or 0 in + * case of failure + * @param[in] min_size New size of buffer `ptr` + * @return `ptr` if the buffer is large enough, a pointer to newly reallocated + * buffer if the buffer was not large enough, or `NULL` in case of + * error + * @see av_realloc() + * @see av_fast_malloc() */ -void av_free(void *ptr); +void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size); /** - * Allocate a block of size bytes with alignment suitable for all - * memory accesses (including vectors if available on the CPU) and - * zero all the bytes of the block. - * @param size Size in bytes for the memory block to be allocated. - * @return Pointer to the allocated block, NULL if it cannot be allocated. - * @see av_malloc() + * Allocate a buffer, reusing the given one if large enough. + * + * Contrary to av_fast_realloc(), the current buffer contents might not be + * preserved and on error the old buffer is freed, thus no special handling to + * avoid memleaks is necessary. + * + * `*ptr` is allowed to be `NULL`, in which case allocation always happens if + * `size_needed` is greater than 0. + * + * @code{.c} + * uint8_t *buf = ...; + * av_fast_malloc(&buf, ¤t_size, size_needed); + * if (!buf) { + * // Allocation failed; buf already freed + * return AVERROR(ENOMEM); + * } + * @endcode + * + * @param[in,out] ptr Pointer to pointer to an already allocated buffer. + * `*ptr` will be overwritten with pointer to new + * buffer on success or `NULL` on failure + * @param[in,out] size Pointer to current size of buffer `*ptr`. `*size` is + * changed to `min_size` in case of success or 0 in + * case of failure + * @param[in] min_size New size of buffer `*ptr` + * @see av_realloc() + * @see av_fast_mallocz() */ -void *av_mallocz(size_t size) av_malloc_attrib av_alloc_size(1); +void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size); /** - * Allocate a block of nmemb * size bytes with alignment suitable for all - * memory accesses (including vectors if available on the CPU) and - * zero all the bytes of the block. - * The allocation will fail if nmemb * size is greater than or equal - * to INT_MAX. - * @param nmemb - * @param size - * @return Pointer to the allocated block, NULL if it cannot be allocated. + * Allocate and clear a buffer, reusing the given one if large enough. + * + * Like av_fast_malloc(), but all newly allocated space is initially cleared. + * Reused buffer is not cleared. + * + * `*ptr` is allowed to be `NULL`, in which case allocation always happens if + * `size_needed` is greater than 0. + * + * @param[in,out] ptr Pointer to pointer to an already allocated buffer. + * `*ptr` will be overwritten with pointer to new + * buffer on success or `NULL` on failure + * @param[in,out] size Pointer to current size of buffer `*ptr`. `*size` is + * changed to `min_size` in case of success or 0 in + * case of failure + * @param[in] min_size New size of buffer `*ptr` + * @see av_fast_malloc() */ -void *av_calloc(size_t nmemb, size_t size) av_malloc_attrib; +void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size); /** - * Allocate a block of size * nmemb bytes with av_mallocz(). - * @param nmemb Number of elements - * @param size Size of the single element - * @return Pointer to the allocated block, NULL if the block cannot - * be allocated. - * @see av_mallocz() - * @see av_malloc_array() + * Free a memory block which has been allocated with a function of av_malloc() + * or av_realloc() family. + * + * @param ptr Pointer to the memory block which should be freed. + * + * @note `ptr = NULL` is explicitly allowed. + * @note It is recommended that you use av_freep() instead, to prevent leaving + * behind dangling pointers. + * @see av_freep() */ -av_alloc_size(1, 2) static inline void *av_mallocz_array(size_t nmemb, size_t size) -{ - if (!size || nmemb >= INT_MAX / size) - return NULL; - return av_mallocz(nmemb * size); -} +void av_free(void *ptr); + +/** + * Free a memory block which has been allocated with a function of av_malloc() + * or av_realloc() family, and set the pointer pointing to it to `NULL`. + * + * @code{.c} + * uint8_t *buf = av_malloc(16); + * av_free(buf); + * // buf now contains a dangling pointer to freed memory, and accidental + * // dereference of buf will result in a use-after-free, which may be a + * // security risk. + * + * uint8_t *buf = av_malloc(16); + * av_freep(&buf); + * // buf is now NULL, and accidental dereference will only result in a + * // NULL-pointer dereference. + * @endcode + * + * @param ptr Pointer to the pointer to the memory block which should be freed + * @note `*ptr = NULL` is safe and leads to no action. + * @see av_free() + */ +void av_freep(void *ptr); /** - * Duplicate the string s. - * @param s string to be duplicated + * Duplicate a string. + * + * @param s String to be duplicated * @return Pointer to a newly-allocated string containing a - * copy of s or NULL if the string cannot be allocated. + * copy of `s` or `NULL` if the string cannot be allocated + * @see av_strndup() */ char *av_strdup(const char *s) av_malloc_attrib; /** - * Duplicate a substring of the string s. - * @param s string to be duplicated - * @param len the maximum length of the resulting string (not counting the - * terminating byte). + * Duplicate a substring of a string. + * + * @param s String to be duplicated + * @param len Maximum length of the resulting string (not counting the + * terminating byte) * @return Pointer to a newly-allocated string containing a - * copy of s or NULL if the string cannot be allocated. + * substring of `s` or `NULL` if the string cannot be allocated */ char *av_strndup(const char *s, size_t len) av_malloc_attrib; /** - * Duplicate the buffer p. - * @param p buffer to be duplicated + * Duplicate a buffer with av_malloc(). + * + * @param p Buffer to be duplicated + * @param size Size in bytes of the buffer copied * @return Pointer to a newly allocated buffer containing a - * copy of p or NULL if the buffer cannot be allocated. + * copy of `p` or `NULL` if the buffer cannot be allocated */ void *av_memdup(const void *p, size_t size); /** - * Free a memory block which has been allocated with av_malloc(z)() or - * av_realloc() and set the pointer pointing to it to NULL. - * @param ptr Pointer to the pointer to the memory block which should - * be freed. - * @note passing a pointer to a NULL pointer is safe and leads to no action. - * @see av_free() + * Overlapping memcpy() implementation. + * + * @param dst Destination buffer + * @param back Number of bytes back to start copying (i.e. the initial size of + * the overlapping window); must be > 0 + * @param cnt Number of bytes to copy; must be >= 0 + * + * @note `cnt > back` is valid, this will copy the bytes we just copied, + * thus creating a repeating pattern with a period length of `back`. */ -void av_freep(void *ptr); +void av_memcpy_backptr(uint8_t *dst, int back, int cnt); /** - * Add an element to a dynamic array. + * @} + */ + +/** + * @defgroup lavu_mem_dynarray Dynamic Array + * + * Utilities to make an array grow when needed. + * + * Sometimes, the programmer would want to have an array that can grow when + * needed. The libavutil dynamic array utilities fill that need. + * + * libavutil supports two systems of appending elements onto a dynamically + * allocated array, the first one storing the pointer to the value in the + * array, and the second storing the value directly. In both systems, the + * caller is responsible for maintaining a variable containing the length of + * the array, as well as freeing of the array after use. + * + * The first system stores pointers to values in a block of dynamically + * allocated memory. Since only pointers are stored, the function does not need + * to know the size of the type. Both av_dynarray_add() and + * av_dynarray_add_nofree() implement this system. + * + * @code + * type **array = NULL; //< an array of pointers to values + * int nb = 0; //< a variable to keep track of the length of the array + * + * type to_be_added = ...; + * type to_be_added2 = ...; + * + * av_dynarray_add(&array, &nb, &to_be_added); + * if (nb == 0) + * return AVERROR(ENOMEM); + * + * av_dynarray_add(&array, &nb, &to_be_added2); + * if (nb == 0) + * return AVERROR(ENOMEM); + * + * // Now: + * // nb == 2 + * // &to_be_added == array[0] + * // &to_be_added2 == array[1] + * + * av_freep(&array); + * @endcode + * + * The second system stores the value directly in a block of memory. As a + * result, the function has to know the size of the type. av_dynarray2_add() + * implements this mechanism. + * + * @code + * type *array = NULL; //< an array of values + * int nb = 0; //< a variable to keep track of the length of the array + * + * type to_be_added = ...; + * type to_be_added2 = ...; + * + * type *addr = av_dynarray2_add((void **)&array, &nb, sizeof(*array), NULL); + * if (!addr) + * return AVERROR(ENOMEM); + * memcpy(addr, &to_be_added, sizeof(to_be_added)); + * + * // Shortcut of the above. + * type *addr = av_dynarray2_add((void **)&array, &nb, sizeof(*array), + * (const void *)&to_be_added2); + * if (!addr) + * return AVERROR(ENOMEM); + * + * // Now: + * // nb == 2 + * // to_be_added == array[0] + * // to_be_added2 == array[1] + * + * av_freep(&array); + * @endcode + * + * @{ + */ + +/** + * Add the pointer to an element to a dynamic array. * * The array to grow is supposed to be an array of pointers to * structures, and the element to add must be a pointer to an already @@ -280,14 +592,14 @@ void av_freep(void *ptr); * Therefore, the amortized cost of adding an element is constant. * * In case of success, the pointer to the array is updated in order to - * point to the new grown array, and the number pointed to by nb_ptr + * point to the new grown array, and the number pointed to by `nb_ptr` * is incremented. - * In case of failure, the array is freed, *tab_ptr is set to NULL and - * *nb_ptr is set to 0. + * In case of failure, the array is freed, `*tab_ptr` is set to `NULL` and + * `*nb_ptr` is set to 0. * - * @param tab_ptr pointer to the array to grow - * @param nb_ptr pointer to the number of elements in the array - * @param elem element to add + * @param[in,out] tab_ptr Pointer to the array to grow + * @param[in,out] nb_ptr Pointer to the number of elements in the array + * @param[in] elem Element to add * @see av_dynarray_add_nofree(), av_dynarray2_add() */ void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem); @@ -299,108 +611,86 @@ void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem); * but it doesn't free memory on fails. It returns error code * instead and leave current buffer untouched. * - * @param tab_ptr pointer to the array to grow - * @param nb_ptr pointer to the number of elements in the array - * @param elem element to add - * @return >=0 on success, negative otherwise. + * @return >=0 on success, negative otherwise * @see av_dynarray_add(), av_dynarray2_add() */ av_warn_unused_result int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem); /** - * Add an element of size elem_size to a dynamic array. + * Add an element of size `elem_size` to a dynamic array. * * The array is reallocated when its number of elements reaches powers of 2. * Therefore, the amortized cost of adding an element is constant. * * In case of success, the pointer to the array is updated in order to - * point to the new grown array, and the number pointed to by nb_ptr + * point to the new grown array, and the number pointed to by `nb_ptr` * is incremented. - * In case of failure, the array is freed, *tab_ptr is set to NULL and - * *nb_ptr is set to 0. - * - * @param tab_ptr pointer to the array to grow - * @param nb_ptr pointer to the number of elements in the array - * @param elem_size size in bytes of the elements in the array - * @param elem_data pointer to the data of the element to add. If NULL, the space of - * the new added element is not filled. - * @return pointer to the data of the element to copy in the new allocated space. - * If NULL, the new allocated space is left uninitialized." + * In case of failure, the array is freed, `*tab_ptr` is set to `NULL` and + * `*nb_ptr` is set to 0. + * + * @param[in,out] tab_ptr Pointer to the array to grow + * @param[in,out] nb_ptr Pointer to the number of elements in the array + * @param[in] elem_size Size in bytes of an element in the array + * @param[in] elem_data Pointer to the data of the element to add. If + * `NULL`, the space of the newly added element is + * allocated but left uninitialized. + * + * @return Pointer to the data of the element to copy in the newly allocated + * space * @see av_dynarray_add(), av_dynarray_add_nofree() */ void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size, const uint8_t *elem_data); /** - * Multiply two size_t values checking for overflow. - * @return 0 if success, AVERROR(EINVAL) if overflow. - */ -static inline int av_size_mult(size_t a, size_t b, size_t *r) -{ - size_t t = a * b; - /* Hack inspired from glibc: only try the division if nelem and elsize - * are both greater than sqrt(SIZE_MAX). */ - if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b) - return AVERROR(EINVAL); - *r = t; - return 0; -} - -/** - * Set the maximum size that may me allocated in one block. + * @} */ -void av_max_alloc(size_t max); /** - * deliberately overlapping memcpy implementation - * @param dst destination buffer - * @param back how many bytes back we start (the initial size of the overlapping window), must be > 0 - * @param cnt number of bytes to copy, must be >= 0 + * @defgroup lavu_mem_misc Miscellaneous Functions + * + * Other functions related to memory allocation. * - * cnt > back is valid, this will copy the bytes we just copied, - * thus creating a repeating pattern with a period length of back. + * @{ */ -void av_memcpy_backptr(uint8_t *dst, int back, int cnt); /** - * Reallocate the given block if it is not large enough, otherwise do nothing. + * Multiply two `size_t` values checking for overflow. * - * @see av_realloc + * @param[in] a,b Operands of multiplication + * @param[out] r Pointer to the result of the operation + * @return 0 on success, AVERROR(EINVAL) on overflow */ -void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size); +static inline int av_size_mult(size_t a, size_t b, size_t *r) +{ + size_t t = a * b; + /* Hack inspired from glibc: don't try the division if nelem and elsize + * are both less than sqrt(SIZE_MAX). */ + if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b) + return AVERROR(EINVAL); + *r = t; + return 0; +} /** - * Allocate a buffer, reusing the given one if large enough. + * Set the maximum size that may be allocated in one block. * - * Contrary to av_fast_realloc the current buffer contents might not be - * preserved and on error the old buffer is freed, thus no special - * handling to avoid memleaks is necessary. + * The value specified with this function is effective for all libavutil's @ref + * lavu_mem_funcs "heap management functions." * - * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer - * @param size size of the buffer *ptr points to - * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and - * *size 0 if an error occurred. - */ -void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size); - -/** - * Allocate a buffer, reusing the given one if large enough. + * By default, the max value is defined as `INT_MAX`. * - * All newly allocated space is initially cleared - * Contrary to av_fast_realloc the current buffer contents might not be - * preserved and on error the old buffer is freed, thus no special - * handling to avoid memleaks is necessary. + * @param max Value to be set as the new maximum size * - * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer - * @param size size of the buffer *ptr points to - * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and - * *size 0 if an error occurred. + * @warning Exercise extreme caution when using this function. Don't touch + * this if you do not understand the full consequence of doing so. */ -void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size); +void av_max_alloc(size_t max); /** * @} + * @} */ #endif /* AVUTIL_MEM_H */ diff --git a/media/ffvpx/libavutil/opt.h b/media/ffvpx/libavutil/opt.h index 9a76a47f7..9430b989e 100644 --- a/media/ffvpx/libavutil/opt.h +++ b/media/ffvpx/libavutil/opt.h @@ -58,7 +58,7 @@ * The following example illustrates an AVOptions-enabled struct: * @code * typedef struct test_struct { - * AVClass *class; + * const AVClass *class; * int int_opt; * char *str_opt; * uint8_t *bin_opt; @@ -96,7 +96,7 @@ * @code * test_struct *alloc_test_struct(void) * { - * test_struct *ret = av_malloc(sizeof(*ret)); + * test_struct *ret = av_mallocz(sizeof(*ret)); * ret->class = &test_class; * av_opt_set_defaults(ret); * return ret; diff --git a/media/ffvpx/libavutil/parseutils.c b/media/ffvpx/libavutil/parseutils.c index 6be3730f4..a2464cfc6 100644 --- a/media/ffvpx/libavutil/parseutils.c +++ b/media/ffvpx/libavutil/parseutils.c @@ -687,6 +687,7 @@ int av_parse_time(int64_t *timeval, const char *timestr, int duration) dt2.tm_sec = dt.tm_sec; dt = dt2; } + dt.tm_isdst = is_utc ? 0 : -1; t = is_utc ? av_timegm(&dt) : mktime(&dt); t += tzoffset; } diff --git a/media/ffvpx/libavutil/pixdesc.c b/media/ffvpx/libavutil/pixdesc.c index 0dffa4dbd..b715fce15 100644 --- a/media/ffvpx/libavutil/pixdesc.c +++ b/media/ffvpx/libavutil/pixdesc.c @@ -1974,6 +1974,10 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = { .name = "qsv", .flags = AV_PIX_FMT_FLAG_HWACCEL, }, + [AV_PIX_FMT_MEDIACODEC] = { + .name = "mediacodec", + .flags = AV_PIX_FMT_FLAG_HWACCEL, + }, [AV_PIX_FMT_MMAL] = { .name = "mmal", .flags = AV_PIX_FMT_FLAG_HWACCEL, @@ -2093,33 +2097,73 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = { FF_ENABLE_DEPRECATION_WARNINGS #endif -static const char *color_range_names[AVCOL_RANGE_NB] = { - "unknown", "tv", "pc", +static const char *color_range_names[] = { + [AVCOL_RANGE_UNSPECIFIED] = "unknown", + [AVCOL_RANGE_MPEG] = "tv", + [AVCOL_RANGE_JPEG] = "pc", }; static const char *color_primaries_names[AVCOL_PRI_NB] = { - "reserved", "bt709", "unknown", "reserved", "bt470m", - "bt470bg", "smpte170m", "smpte240m", "film", "bt2020", - "smpte428-1", + [AVCOL_PRI_RESERVED0] = "reserved", + [AVCOL_PRI_BT709] = "bt709", + [AVCOL_PRI_UNSPECIFIED] = "unknown", + [AVCOL_PRI_RESERVED] = "reserved", + [AVCOL_PRI_BT470M] = "bt470m", + [AVCOL_PRI_BT470BG] = "bt470bg", + [AVCOL_PRI_SMPTE170M] = "smpte170m", + [AVCOL_PRI_SMPTE240M] = "smpte240m", + [AVCOL_PRI_FILM] = "film", + [AVCOL_PRI_BT2020] = "bt2020", + [AVCOL_PRI_SMPTEST428_1] = "smpte428-1", + [AVCOL_PRI_SMPTE431] = "smpte431", + [AVCOL_PRI_SMPTE432] = "smpte432", }; -static const char *color_transfer_names[AVCOL_TRC_NB] = { - "reserved", "bt709", "unknown", "reserved", "bt470m", - "bt470bg", "smpte170m", "smpte240m", "linear", "log100", - "log316", "iec61966-2-4", "bt1361e", "iec61966-2-1", - "bt2020-10", "bt2020-20", "smpte2084", "smpte428-1", - "arib-std-b67" +static const char *color_transfer_names[] = { + [AVCOL_TRC_RESERVED0] = "reserved", + [AVCOL_TRC_BT709] = "bt709", + [AVCOL_TRC_UNSPECIFIED] = "unknown", + [AVCOL_TRC_RESERVED] = "reserved", + [AVCOL_TRC_GAMMA22] = "bt470m", + [AVCOL_TRC_GAMMA28] = "bt470bg", + [AVCOL_TRC_SMPTE170M] = "smpte170m", + [AVCOL_TRC_SMPTE240M] = "smpte240m", + [AVCOL_TRC_LINEAR] = "linear", + [AVCOL_TRC_LOG] = "log100", + [AVCOL_TRC_LOG_SQRT] = "log316", + [AVCOL_TRC_IEC61966_2_4] = "iec61966-2-4", + [AVCOL_TRC_BT1361_ECG] = "bt1361e", + [AVCOL_TRC_IEC61966_2_1] = "iec61966-2-1", + [AVCOL_TRC_BT2020_10] = "bt2020-10", + [AVCOL_TRC_BT2020_12] = "bt2020-20", + [AVCOL_TRC_SMPTEST2084] = "smpte2084", + [AVCOL_TRC_SMPTEST428_1] = "smpte428-1", + [AVCOL_TRC_ARIB_STD_B67] = "arib-std-b67", }; -static const char *color_space_names[AVCOL_SPC_NB] = { - "gbr", "bt709", "unknown", "reserved", "fcc", - "bt470bg", "smpte170m", "smpte240m", "ycgco", - "bt2020nc", "bt2020c", +static const char *color_space_names[] = { + [AVCOL_SPC_RGB] = "gbr", + [AVCOL_SPC_BT709] = "bt709", + [AVCOL_SPC_UNSPECIFIED] = "unknown", + [AVCOL_SPC_RESERVED] = "reserved", + [AVCOL_SPC_FCC] = "fcc", + [AVCOL_SPC_BT470BG] = "bt470bg", + [AVCOL_SPC_SMPTE170M] = "smpte170m", + [AVCOL_SPC_SMPTE240M] = "smpte240m", + [AVCOL_SPC_YCOCG] = "ycgco", + [AVCOL_SPC_BT2020_NCL] = "bt2020nc", + [AVCOL_SPC_BT2020_CL] = "bt2020c", + [AVCOL_SPC_SMPTE2085] = "smpte2085", }; -static const char *chroma_location_names[AVCHROMA_LOC_NB] = { - "unspecified", "left", "center", "topleft", - "top", "bottomleft", "bottom", +static const char *chroma_location_names[] = { + [AVCHROMA_LOC_UNSPECIFIED] = "unspecified", + [AVCHROMA_LOC_LEFT] = "left", + [AVCHROMA_LOC_CENTER] = "center", + [AVCHROMA_LOC_TOPLEFT] = "topleft", + [AVCHROMA_LOC_TOP] = "top", + [AVCHROMA_LOC_BOTTOMLEFT] = "bottomleft", + [AVCHROMA_LOC_BOTTOM] = "bottom", }; static enum AVPixelFormat get_pix_fmt_internal(const char *name) diff --git a/media/ffvpx/libavutil/pixdesc.h b/media/ffvpx/libavutil/pixdesc.h index 3b0bcdb3d..a8ad58891 100644 --- a/media/ffvpx/libavutil/pixdesc.h +++ b/media/ffvpx/libavutil/pixdesc.h @@ -173,78 +173,6 @@ typedef struct AVPixFmtDescriptor { #define AV_PIX_FMT_FLAG_ALPHA (1 << 7) /** - * Read a line from an image, and write the values of the - * pixel format component c to dst. - * - * @param data the array containing the pointers to the planes of the image - * @param linesize the array containing the linesizes of the image - * @param desc the pixel format descriptor for the image - * @param x the horizontal coordinate of the first pixel to read - * @param y the vertical coordinate of the first pixel to read - * @param w the width of the line to read, that is the number of - * values to write to dst - * @param read_pal_component if not zero and the format is a paletted - * format writes the values corresponding to the palette - * component c in data[1] to dst, rather than the palette indexes in - * data[0]. The behavior is undefined if the format is not paletted. - */ -void av_read_image_line(uint16_t *dst, const uint8_t *data[4], - const int linesize[4], const AVPixFmtDescriptor *desc, - int x, int y, int c, int w, int read_pal_component); - -/** - * Write the values from src to the pixel format component c of an - * image line. - * - * @param src array containing the values to write - * @param data the array containing the pointers to the planes of the - * image to write into. It is supposed to be zeroed. - * @param linesize the array containing the linesizes of the image - * @param desc the pixel format descriptor for the image - * @param x the horizontal coordinate of the first pixel to write - * @param y the vertical coordinate of the first pixel to write - * @param w the width of the line to write, that is the number of - * values to write to the image line - */ -void av_write_image_line(const uint16_t *src, uint8_t *data[4], - const int linesize[4], const AVPixFmtDescriptor *desc, - int x, int y, int c, int w); - -/** - * Return the pixel format corresponding to name. - * - * If there is no pixel format with name name, then looks for a - * pixel format with the name corresponding to the native endian - * format of name. - * For example in a little-endian system, first looks for "gray16", - * then for "gray16le". - * - * Finally if no pixel format has been found, returns AV_PIX_FMT_NONE. - */ -enum AVPixelFormat av_get_pix_fmt(const char *name); - -/** - * Return the short name for a pixel format, NULL in case pix_fmt is - * unknown. - * - * @see av_get_pix_fmt(), av_get_pix_fmt_string() - */ -const char *av_get_pix_fmt_name(enum AVPixelFormat pix_fmt); - -/** - * Print in buf the string corresponding to the pixel format with - * number pix_fmt, or a header if pix_fmt is negative. - * - * @param buf the buffer where to write the string - * @param buf_size the size of buf - * @param pix_fmt the number of the pixel format to print the - * corresponding info string, or a negative value to print the - * corresponding header. - */ -char *av_get_pix_fmt_string(char *buf, int buf_size, - enum AVPixelFormat pix_fmt); - -/** * Return the number of bits per pixel used by the pixel format * described by pixdesc. Note that this is not the same as the number * of bits per sample. @@ -307,6 +235,103 @@ int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt); /** + * @return the name for provided color range or NULL if unknown. + */ +const char *av_color_range_name(enum AVColorRange range); + +/** + * @return the name for provided color primaries or NULL if unknown. + */ +const char *av_color_primaries_name(enum AVColorPrimaries primaries); + +/** + * @return the name for provided color transfer or NULL if unknown. + */ +const char *av_color_transfer_name(enum AVColorTransferCharacteristic transfer); + +/** + * @return the name for provided color space or NULL if unknown. + */ +const char *av_color_space_name(enum AVColorSpace space); + +/** + * @return the name for provided chroma location or NULL if unknown. + */ +const char *av_chroma_location_name(enum AVChromaLocation location); + +/** + * Return the pixel format corresponding to name. + * + * If there is no pixel format with name name, then looks for a + * pixel format with the name corresponding to the native endian + * format of name. + * For example in a little-endian system, first looks for "gray16", + * then for "gray16le". + * + * Finally if no pixel format has been found, returns AV_PIX_FMT_NONE. + */ +enum AVPixelFormat av_get_pix_fmt(const char *name); + +/** + * Return the short name for a pixel format, NULL in case pix_fmt is + * unknown. + * + * @see av_get_pix_fmt(), av_get_pix_fmt_string() + */ +const char *av_get_pix_fmt_name(enum AVPixelFormat pix_fmt); + +/** + * Print in buf the string corresponding to the pixel format with + * number pix_fmt, or a header if pix_fmt is negative. + * + * @param buf the buffer where to write the string + * @param buf_size the size of buf + * @param pix_fmt the number of the pixel format to print the + * corresponding info string, or a negative value to print the + * corresponding header. + */ +char *av_get_pix_fmt_string(char *buf, int buf_size, + enum AVPixelFormat pix_fmt); + +/** + * Read a line from an image, and write the values of the + * pixel format component c to dst. + * + * @param data the array containing the pointers to the planes of the image + * @param linesize the array containing the linesizes of the image + * @param desc the pixel format descriptor for the image + * @param x the horizontal coordinate of the first pixel to read + * @param y the vertical coordinate of the first pixel to read + * @param w the width of the line to read, that is the number of + * values to write to dst + * @param read_pal_component if not zero and the format is a paletted + * format writes the values corresponding to the palette + * component c in data[1] to dst, rather than the palette indexes in + * data[0]. The behavior is undefined if the format is not paletted. + */ +void av_read_image_line(uint16_t *dst, const uint8_t *data[4], + const int linesize[4], const AVPixFmtDescriptor *desc, + int x, int y, int c, int w, int read_pal_component); + +/** + * Write the values from src to the pixel format component c of an + * image line. + * + * @param src array containing the values to write + * @param data the array containing the pointers to the planes of the + * image to write into. It is supposed to be zeroed. + * @param linesize the array containing the linesizes of the image + * @param desc the pixel format descriptor for the image + * @param x the horizontal coordinate of the first pixel to write + * @param y the vertical coordinate of the first pixel to write + * @param w the width of the line to write, that is the number of + * values to write to the image line + */ +void av_write_image_line(const uint16_t *src, uint8_t *data[4], + const int linesize[4], const AVPixFmtDescriptor *desc, + int x, int y, int c, int w); + +/** * Utility function to swap the endianness of a pixel format. * * @param[in] pix_fmt the pixel format @@ -366,29 +391,4 @@ int av_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat av_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2, enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr); -/** - * @return the name for provided color range or NULL if unknown. - */ -const char *av_color_range_name(enum AVColorRange range); - -/** - * @return the name for provided color primaries or NULL if unknown. - */ -const char *av_color_primaries_name(enum AVColorPrimaries primaries); - -/** - * @return the name for provided color transfer or NULL if unknown. - */ -const char *av_color_transfer_name(enum AVColorTransferCharacteristic transfer); - -/** - * @return the name for provided color space or NULL if unknown. - */ -const char *av_color_space_name(enum AVColorSpace space); - -/** - * @return the name for provided chroma location or NULL if unknown. - */ -const char *av_chroma_location_name(enum AVChromaLocation location); - #endif /* AVUTIL_PIXDESC_H */ diff --git a/media/ffvpx/libavutil/pixfmt.h b/media/ffvpx/libavutil/pixfmt.h index 0ed01c484..7a3f68be7 100644 --- a/media/ffvpx/libavutil/pixfmt.h +++ b/media/ffvpx/libavutil/pixfmt.h @@ -77,7 +77,7 @@ enum AVPixelFormat { #if FF_API_XVMC AV_PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing AV_PIX_FMT_XVMC_MPEG2_IDCT, -#define AV_PIX_FMT_XVMC AV_PIX_FMT_XVMC_MPEG2_IDCT + AV_PIX_FMT_XVMC = AV_PIX_FMT_XVMC_MPEG2_IDCT, #endif /* FF_API_XVMC */ AV_PIX_FMT_UYVY422, ///< packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1 AV_PIX_FMT_UYYVYY411, ///< packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3 @@ -178,6 +178,7 @@ enum AVPixelFormat { AV_PIX_FMT_YUV422P9LE, ///< planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian AV_PIX_FMT_VDA_VLD, ///< hardware decoding through VDA AV_PIX_FMT_GBRP, ///< planar GBR 4:4:4 24bpp + AV_PIX_FMT_GBR24P = AV_PIX_FMT_GBRP, // alias for #AV_PIX_FMT_GBRP AV_PIX_FMT_GBRP9BE, ///< planar GBR 4:4:4 27bpp, big-endian AV_PIX_FMT_GBRP9LE, ///< planar GBR 4:4:4 27bpp, little-endian AV_PIX_FMT_GBRP10BE, ///< planar GBR 4:4:4 30bpp, big-endian @@ -303,11 +304,10 @@ enum AVPixelFormat { AV_PIX_FMT_GBRAP10BE, ///< planar GBR 4:4:4:4 40bpp, big-endian AV_PIX_FMT_GBRAP10LE, ///< planar GBR 4:4:4:4 40bpp, little-endian - AV_PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions -}; + AV_PIX_FMT_MEDIACODEC, ///< hardware decoding through MediaCodec -#define AV_PIX_FMT_Y400A AV_PIX_FMT_GRAY8A -#define AV_PIX_FMT_GBR24P AV_PIX_FMT_GBRP + AV_PIX_FMT_NB ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions +}; #if AV_HAVE_BIGENDIAN # define AV_PIX_FMT_NE(be, le) AV_PIX_FMT_##be @@ -398,8 +398,10 @@ enum AVColorPrimaries { AVCOL_PRI_SMPTE240M = 7, ///< functionally identical to above AVCOL_PRI_FILM = 8, ///< colour filters using Illuminant C AVCOL_PRI_BT2020 = 9, ///< ITU-R BT2020 - AVCOL_PRI_SMPTEST428_1= 10, ///< SMPTE ST 428-1 (CIE 1931 XYZ) - AVCOL_PRI_NB, ///< Not part of ABI + AVCOL_PRI_SMPTEST428_1 = 10, ///< SMPTE ST 428-1 (CIE 1931 XYZ) + AVCOL_PRI_SMPTE431 = 11, ///< SMPTE ST 431-2 (2011) + AVCOL_PRI_SMPTE432 = 12, ///< SMPTE ST 432-1 D65 (2010) + AVCOL_PRI_NB ///< Not part of ABI }; /** @@ -425,7 +427,7 @@ enum AVColorTransferCharacteristic { AVCOL_TRC_SMPTEST2084 = 16, ///< SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems AVCOL_TRC_SMPTEST428_1 = 17, ///< SMPTE ST 428-1 AVCOL_TRC_ARIB_STD_B67 = 18, ///< ARIB STD-B67, known as "Hybrid log-gamma" - AVCOL_TRC_NB, ///< Not part of ABI + AVCOL_TRC_NB ///< Not part of ABI }; /** @@ -443,7 +445,8 @@ enum AVColorSpace { 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 + AVCOL_SPC_SMPTE2085 = 11, ///< SMPTE 2085, Y'D'zD'x + AVCOL_SPC_NB ///< Not part of ABI }; #define AVCOL_SPC_YCGCO AVCOL_SPC_YCOCG @@ -455,7 +458,7 @@ 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 + AVCOL_RANGE_NB ///< Not part of ABI }; /** @@ -481,7 +484,7 @@ enum AVChromaLocation { AVCHROMA_LOC_TOP = 4, AVCHROMA_LOC_BOTTOMLEFT = 5, AVCHROMA_LOC_BOTTOM = 6, - AVCHROMA_LOC_NB, ///< Not part of ABI + AVCHROMA_LOC_NB ///< Not part of ABI }; #endif /* AVUTIL_PIXFMT_H */ diff --git a/media/ffvpx/libavutil/rational.h b/media/ffvpx/libavutil/rational.h index 289746968..5c6b67b4e 100644 --- a/media/ffvpx/libavutil/rational.h +++ b/media/ffvpx/libavutil/rational.h @@ -21,7 +21,8 @@ /** * @file - * rational numbers + * @ingroup lavu_math_rational + * Utilties for rational number calculation. * @author Michael Niedermayer <michaelni@gmx.at> */ @@ -33,22 +34,39 @@ #include "attributes.h" /** - * @addtogroup lavu_math + * @defgroup lavu_math_rational AVRational + * @ingroup lavu_math + * Rational number calculation. + * + * While rational numbers can be expressed as floating-point numbers, the + * conversion process is a lossy one, so are floating-point operations. On the + * other hand, the nature of FFmpeg demands highly accurate calculation of + * timestamps. This set of rational number utilities serves as a generic + * interface for manipulating rational numbers as pairs of numerators and + * denominators. + * + * Many of the functions that operate on AVRational's have the suffix `_q`, in + * reference to the mathematical symbol "ℚ" (Q) which denotes the set of all + * rational numbers. + * * @{ */ /** - * rational number numerator/denominator + * Rational number (pair of numerator and denominator). */ typedef struct AVRational{ - int num; ///< numerator - int den; ///< denominator + int num; ///< Numerator + int den; ///< Denominator } AVRational; /** - * Create a rational. + * Create an AVRational. + * * Useful for compilers that do not support compound literals. - * @note The return value is not reduced. + * + * @note The return value is not reduced. + * @see av_reduce() */ static inline AVRational av_make_q(int num, int den) { @@ -58,10 +76,15 @@ static inline AVRational av_make_q(int num, int den) /** * Compare two rationals. - * @param a first rational - * @param b second rational - * @return 0 if a==b, 1 if a>b, -1 if a<b, and INT_MIN if one of the - * values is of the form 0/0 + * + * @param a First rational + * @param b Second rational + * + * @return One of the following values: + * - 0 if `a == b` + * - 1 if `a > b` + * - -1 if `a < b` + * - `INT_MIN` if one of the values is of the form `0 / 0` */ static inline int av_cmp_q(AVRational a, AVRational b){ const int64_t tmp= a.num * (int64_t)b.den - b.num * (int64_t)a.den; @@ -73,9 +96,10 @@ static inline int av_cmp_q(AVRational a, AVRational b){ } /** - * Convert rational to double. - * @param a rational to convert - * @return (double) a + * Convert an AVRational to a `double`. + * @param a AVRational to convert + * @return `a` in floating-point form + * @see av_d2q() */ static inline double av_q2d(AVRational a){ return a.num / (double) a.den; @@ -83,44 +107,46 @@ static inline double av_q2d(AVRational a){ /** * Reduce a fraction. + * * This is useful for framerate calculations. - * @param dst_num destination numerator - * @param dst_den destination denominator - * @param num source numerator - * @param den source denominator - * @param max the maximum allowed for dst_num & dst_den - * @return 1 if exact, 0 otherwise + * + * @param[out] dst_num Destination numerator + * @param[out] dst_den Destination denominator + * @param[in] num Source numerator + * @param[in] den Source denominator + * @param[in] max Maximum allowed values for `dst_num` & `dst_den` + * @return 1 if the operation is exact, 0 otherwise */ int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max); /** * Multiply two rationals. - * @param b first rational - * @param c second rational + * @param b First rational + * @param c Second rational * @return b*c */ AVRational av_mul_q(AVRational b, AVRational c) av_const; /** * Divide one rational by another. - * @param b first rational - * @param c second rational + * @param b First rational + * @param c Second rational * @return b/c */ AVRational av_div_q(AVRational b, AVRational c) av_const; /** * Add two rationals. - * @param b first rational - * @param c second rational + * @param b First rational + * @param c Second rational * @return b+c */ AVRational av_add_q(AVRational b, AVRational c) av_const; /** * Subtract one rational from another. - * @param b first rational - * @param c second rational + * @param b First rational + * @param c Second rational * @return b-c */ AVRational av_sub_q(AVRational b, AVRational c) av_const; @@ -138,31 +164,46 @@ static av_always_inline AVRational av_inv_q(AVRational q) /** * Convert a double precision floating point number to a rational. - * inf is expressed as {1,0} or {-1,0} depending on the sign. * - * @param d double to convert - * @param max the maximum allowed numerator and denominator - * @return (AVRational) d + * In case of infinity, the returned value is expressed as `{1, 0}` or + * `{-1, 0}` depending on the sign. + * + * @param d `double` to convert + * @param max Maximum allowed numerator and denominator + * @return `d` in AVRational form + * @see av_q2d() */ AVRational av_d2q(double d, int max) av_const; /** - * @return 1 if q1 is nearer to q than q2, -1 if q2 is nearer - * than q1, 0 if they have the same distance. + * Find which of the two rationals is closer to another rational. + * + * @param q Rational to be compared against + * @param q1,q2 Rationals to be tested + * @return One of the following values: + * - 1 if `q1` is nearer to `q` than `q2` + * - -1 if `q2` is nearer to `q` than `q1` + * - 0 if they have the same distance */ int av_nearer_q(AVRational q, AVRational q1, AVRational q2); /** - * Find the nearest value in q_list to q. - * @param q_list an array of rationals terminated by {0, 0} - * @return the index of the nearest value found in the array + * Find the value in a list of rationals nearest a given reference rational. + * + * @param q Reference rational + * @param q_list Array of rationals terminated by `{0, 0}` + * @return Index of the nearest value found in the array */ int av_find_nearest_q_idx(AVRational q, const AVRational* q_list); /** - * Converts a AVRational to a IEEE 32bit float. + * Convert an AVRational to a IEEE 32-bit `float` expressed in fixed-point + * format. * - * The float is returned in a uint32_t and its value is platform indepenant. + * @param q Rational to be converted + * @return Equivalent floating-point value, expressed as an unsigned 32-bit + * integer. + * @note The returned value is platform-indepedant. */ uint32_t av_q2intfloat(AVRational q); diff --git a/media/ffvpx/libavutil/samplefmt.c b/media/ffvpx/libavutil/samplefmt.c index c605b5ebd..fc077f644 100644 --- a/media/ffvpx/libavutil/samplefmt.c +++ b/media/ffvpx/libavutil/samplefmt.c @@ -35,11 +35,13 @@ static const SampleFmtInfo sample_fmt_info[AV_SAMPLE_FMT_NB] = { [AV_SAMPLE_FMT_U8] = { .name = "u8", .bits = 8, .planar = 0, .altform = AV_SAMPLE_FMT_U8P }, [AV_SAMPLE_FMT_S16] = { .name = "s16", .bits = 16, .planar = 0, .altform = AV_SAMPLE_FMT_S16P }, [AV_SAMPLE_FMT_S32] = { .name = "s32", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_S32P }, + [AV_SAMPLE_FMT_S64] = { .name = "s64", .bits = 64, .planar = 0, .altform = AV_SAMPLE_FMT_S64P }, [AV_SAMPLE_FMT_FLT] = { .name = "flt", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_FLTP }, [AV_SAMPLE_FMT_DBL] = { .name = "dbl", .bits = 64, .planar = 0, .altform = AV_SAMPLE_FMT_DBLP }, [AV_SAMPLE_FMT_U8P] = { .name = "u8p", .bits = 8, .planar = 1, .altform = AV_SAMPLE_FMT_U8 }, [AV_SAMPLE_FMT_S16P] = { .name = "s16p", .bits = 16, .planar = 1, .altform = AV_SAMPLE_FMT_S16 }, [AV_SAMPLE_FMT_S32P] = { .name = "s32p", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_S32 }, + [AV_SAMPLE_FMT_S64P] = { .name = "s64p", .bits = 64, .planar = 1, .altform = AV_SAMPLE_FMT_S64 }, [AV_SAMPLE_FMT_FLTP] = { .name = "fltp", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_FLT }, [AV_SAMPLE_FMT_DBLP] = { .name = "dblp", .bits = 64, .planar = 1, .altform = AV_SAMPLE_FMT_DBL }, }; diff --git a/media/ffvpx/libavutil/samplefmt.h b/media/ffvpx/libavutil/samplefmt.h index 57da2784d..8cd43ae85 100644 --- a/media/ffvpx/libavutil/samplefmt.h +++ b/media/ffvpx/libavutil/samplefmt.h @@ -68,6 +68,8 @@ enum AVSampleFormat { AV_SAMPLE_FMT_S32P, ///< signed 32 bits, planar AV_SAMPLE_FMT_FLTP, ///< float, planar AV_SAMPLE_FMT_DBLP, ///< double, planar + AV_SAMPLE_FMT_S64, ///< signed 64 bits + AV_SAMPLE_FMT_S64P, ///< signed 64 bits, planar AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if linking dynamically }; diff --git a/media/ffvpx/libavutil/timestamp.h b/media/ffvpx/libavutil/timestamp.h index f010a7ee3..e082f01b4 100644 --- a/media/ffvpx/libavutil/timestamp.h +++ b/media/ffvpx/libavutil/timestamp.h @@ -43,7 +43,7 @@ static inline char *av_ts_make_string(char *buf, int64_t ts) { if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); - else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64, ts); + else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%" PRId64, ts); return buf; } diff --git a/media/ffvpx/libavutil/utils.c b/media/ffvpx/libavutil/utils.c index f409f3221..36e4dd5fd 100644 --- a/media/ffvpx/libavutil/utils.c +++ b/media/ffvpx/libavutil/utils.c @@ -125,3 +125,16 @@ AVRational av_get_time_base_q(void) { return (AVRational){1, AV_TIME_BASE}; } + +void av_assert0_fpu(void) { +#if HAVE_MMX_INLINE + uint16_t state[14]; + __asm volatile ( + "fstenv %0 \n\t" + : "+m" (state) + : + : "memory" + ); + av_assert0((state[4] & 3) == 3); +#endif +} diff --git a/media/ffvpx/libavutil/version.h b/media/ffvpx/libavutil/version.h index 07618fc0b..bdd310f85 100644 --- a/media/ffvpx/libavutil/version.h +++ b/media/ffvpx/libavutil/version.h @@ -18,6 +18,12 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +/** + * @file + * @ingroup lavu + * Libavutil version macros + */ + #ifndef AVUTIL_VERSION_H #define AVUTIL_VERSION_H @@ -29,6 +35,21 @@ * Useful to check and match library version in order to maintain * backward compatibility. * + * The FFmpeg libraries follow a versioning sheme very similar to + * Semantic Versioning (http://semver.org/) + * The difference is that the component called PATCH is called MICRO in FFmpeg + * and its value is reset to 100 instead of 0 to keep it above or equal to 100. + * Also we do not increase MICRO for every bugfix or change in git master. + * + * Prior to FFmpeg 3.2 point releases did not change any lib version number to + * avoid aliassing different git master checkouts. + * Starting with FFmpeg 3.2, the released library versions will occupy + * a separate MAJOR.MINOR that is not used on the master development branch. + * That is if we branch a release of master 55.10.123 we will bump to 55.11.100 + * for the release and master will continue at 55.12.100 after it. Each new + * point release will then bump the MICRO improving the usefulness of the lib + * versions. + * * @{ */ @@ -49,12 +70,6 @@ */ /** - * @file - * @ingroup lavu - * Libavutil version macros - */ - -/** * @defgroup lavu_ver Version and Build diagnostics * * Macros and function useful to check at compiletime and at runtime @@ -64,7 +79,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 55 -#define LIBAVUTIL_VERSION_MINOR 28 +#define LIBAVUTIL_VERSION_MINOR 34 #define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ @@ -78,9 +93,7 @@ #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION) /** - * @} - * - * @defgroup depr_guards Deprecation guards + * @defgroup lavu_depr_guards Deprecation Guards * FF_API_* defines may be placed below to indicate public API that will be * dropped at a future version bump. The defines themselves are not part of * the public API and may change, break or disappear at any time. @@ -119,10 +132,14 @@ #ifndef FF_API_CRC_BIG_TABLE #define FF_API_CRC_BIG_TABLE (LIBAVUTIL_VERSION_MAJOR < 56) #endif +#ifndef FF_API_PKT_PTS +#define FF_API_PKT_PTS (LIBAVUTIL_VERSION_MAJOR < 56) +#endif /** * @} + * @} */ #endif /* AVUTIL_VERSION_H */ diff --git a/media/ffvpx/libavutil/x86/asm.h b/media/ffvpx/libavutil/x86/asm.h index 109b65e54..9bff42d62 100644 --- a/media/ffvpx/libavutil/x86/asm.h +++ b/media/ffvpx/libavutil/x86/asm.h @@ -28,46 +28,46 @@ typedef struct xmm_reg { uint64_t a, b; } xmm_reg; typedef struct ymm_reg { uint64_t a, b, c, d; } ymm_reg; #if ARCH_X86_64 -# define OPSIZE "q" -# define REG_a "rax" -# define REG_b "rbx" -# define REG_c "rcx" -# define REG_d "rdx" -# define REG_D "rdi" -# define REG_S "rsi" -# define PTR_SIZE "8" +# define FF_OPSIZE "q" +# define FF_REG_a "rax" +# define FF_REG_b "rbx" +# define FF_REG_c "rcx" +# define FF_REG_d "rdx" +# define FF_REG_D "rdi" +# define FF_REG_S "rsi" +# define FF_PTR_SIZE "8" typedef int64_t x86_reg; -/* REG_SP is defined in Solaris sys headers, so use REG_sp */ -# define REG_sp "rsp" -# define REG_BP "rbp" -# define REGBP rbp -# define REGa rax -# define REGb rbx -# define REGc rcx -# define REGd rdx -# define REGSP rsp +/* FF_REG_SP is defined in Solaris sys headers, so use FF_REG_sp */ +# define FF_REG_sp "rsp" +# define FF_REG_BP "rbp" +# define FF_REGBP rbp +# define FF_REGa rax +# define FF_REGb rbx +# define FF_REGc rcx +# define FF_REGd rdx +# define FF_REGSP rsp #elif ARCH_X86_32 -# define OPSIZE "l" -# define REG_a "eax" -# define REG_b "ebx" -# define REG_c "ecx" -# define REG_d "edx" -# define REG_D "edi" -# define REG_S "esi" -# define PTR_SIZE "4" +# define FF_OPSIZE "l" +# define FF_REG_a "eax" +# define FF_REG_b "ebx" +# define FF_REG_c "ecx" +# define FF_REG_d "edx" +# define FF_REG_D "edi" +# define FF_REG_S "esi" +# define FF_PTR_SIZE "4" typedef int32_t x86_reg; -# define REG_sp "esp" -# define REG_BP "ebp" -# define REGBP ebp -# define REGa eax -# define REGb ebx -# define REGc ecx -# define REGd edx -# define REGSP esp +# define FF_REG_sp "esp" +# define FF_REG_BP "ebp" +# define FF_REGBP ebp +# define FF_REGa eax +# define FF_REGb ebx +# define FF_REGc ecx +# define FF_REGd edx +# define FF_REGSP esp #else typedef int x86_reg; #endif diff --git a/media/ffvpx/libavutil/x86/cpu.c b/media/ffvpx/libavutil/x86/cpu.c index b9f239be4..f3a49c677 100644 --- a/media/ffvpx/libavutil/x86/cpu.c +++ b/media/ffvpx/libavutil/x86/cpu.c @@ -41,9 +41,9 @@ /* ebx saving is necessary for PIC. gcc seems unable to see it alone */ #define cpuid(index, eax, ebx, ecx, edx) \ __asm__ volatile ( \ - "mov %%"REG_b", %%"REG_S" \n\t" \ + "mov %%"FF_REG_b", %%"FF_REG_S" \n\t" \ "cpuid \n\t" \ - "xchg %%"REG_b", %%"REG_S \ + "xchg %%"FF_REG_b", %%"FF_REG_S \ : "=a" (eax), "=S" (ebx), "=c" (ecx), "=d" (edx) \ : "0" (index), "2"(0)) diff --git a/media/ffvpx/libavutil/x86/emms.h b/media/ffvpx/libavutil/x86/emms.h index 6fda6e276..42c18e295 100644 --- a/media/ffvpx/libavutil/x86/emms.h +++ b/media/ffvpx/libavutil/x86/emms.h @@ -31,6 +31,8 @@ void avpriv_emms_yasm(void); * Empty mmx state. * this must be called between any dsp function and float/double code. * for example sin(); dsp->idct_put(); emms_c(); cos() + * Note, *alloc() and *free() also use float code in some libc implementations + * thus this also applies to them or any function using them. */ static av_always_inline void emms_c(void) { diff --git a/media/ffvpx/libavutil/x86/x86util.asm b/media/ffvpx/libavutil/x86/x86util.asm index e7493f488..44ed750ae 100644 --- a/media/ffvpx/libavutil/x86/x86util.asm +++ b/media/ffvpx/libavutil/x86/x86util.asm @@ -30,7 +30,10 @@ %include "libavutil/x86/x86inc.asm" %macro SBUTTERFLY 4 -%if avx_enabled == 0 +%ifidn %1, dqqq + vperm2i128 m%4, m%2, m%3, q0301 + vinserti128 m%2, m%2, xm%3, 1 +%elif avx_enabled == 0 mova m%4, m%2 punpckl%1 m%2, m%3 punpckh%1 m%4, m%3 @@ -193,6 +196,70 @@ %endif %endmacro +%macro TRANSPOSE16x16W 18-19 +; in: m0..m15, unless %19 in which case m6 is in %17 +; out: m0..m15, unless %19 in which case m4 is in %18 +; spills into %17 and %18 +%if %0 < 19 + mova %17, m%7 +%endif + + SBUTTERFLY dqqq, %1, %9, %7 + SBUTTERFLY dqqq, %2, %10, %7 + SBUTTERFLY dqqq, %3, %11, %7 + SBUTTERFLY dqqq, %4, %12, %7 + SBUTTERFLY dqqq, %5, %13, %7 + SBUTTERFLY dqqq, %6, %14, %7 + mova %18, m%14 + mova m%7, %17 + SBUTTERFLY dqqq, %7, %15, %14 + SBUTTERFLY dqqq, %8, %16, %14 + + SBUTTERFLY wd, %1, %2, %14 + SBUTTERFLY wd, %3, %4, %14 + SBUTTERFLY wd, %5, %6, %14 + SBUTTERFLY wd, %7, %8, %14 + SBUTTERFLY wd, %9, %10, %14 + SBUTTERFLY wd, %11, %12, %14 + mova %17, m%12 + mova m%14, %18 + SBUTTERFLY wd, %13, %14, %12 + SBUTTERFLY wd, %15, %16, %12 + + SBUTTERFLY dq, %1, %3, %12 + SBUTTERFLY dq, %2, %4, %12 + SBUTTERFLY dq, %5, %7, %12 + SBUTTERFLY dq, %6, %8, %12 + SBUTTERFLY dq, %9, %11, %12 + mova %18, m%11 + mova m%12, %17 + SBUTTERFLY dq, %10, %12, %11 + SBUTTERFLY dq, %13, %15, %11 + SBUTTERFLY dq, %14, %16, %11 + + SBUTTERFLY qdq, %1, %5, %11 + SBUTTERFLY qdq, %2, %6, %11 + SBUTTERFLY qdq, %3, %7, %11 + SBUTTERFLY qdq, %4, %8, %11 + + SWAP %2, %5 + SWAP %4, %7 + + SBUTTERFLY qdq, %9, %13, %11 + SBUTTERFLY qdq, %10, %14, %11 + mova m%11, %18 + mova %18, m%5 + SBUTTERFLY qdq, %11, %15, %5 + SBUTTERFLY qdq, %12, %16, %5 + +%if %0 < 19 + mova m%5, %18 +%endif + + SWAP %10, %13 + SWAP %12, %15 +%endmacro + ; PABSW macro assumes %1 != %2, while ABS1/2 macros work in-place %macro PABSW 2 %if cpuflag(ssse3) |