diff options
Diffstat (limited to 'libavcodec/internal.h')
| -rw-r--r-- | libavcodec/internal.h | 169 |
1 files changed, 147 insertions, 22 deletions
diff --git a/libavcodec/internal.h b/libavcodec/internal.h index a619e977f6..f2e6f00ace 100644 --- a/libavcodec/internal.h +++ b/libavcodec/internal.h @@ -1,18 +1,18 @@ /* - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -48,36 +48,54 @@ #define FF_CODEC_CAP_INIT_CLEANUP (1 << 1) /** * Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set - * AVFrame.pkt_dts manually. If the flag is set, utils.c won't overwrite - * this field. If it's unset, utils.c tries to guess the pkt_dts field + * AVFrame.pkt_dts manually. If the flag is set, decode.c won't overwrite + * this field. If it's unset, decode.c tries to guess the pkt_dts field * from the input AVPacket. */ #define FF_CODEC_CAP_SETS_PKT_DTS (1 << 2) /** + * The decoder extracts and fills its parameters even if the frame is + * skipped due to the skip_frame setting. + */ +#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM (1 << 3) +/** * The decoder sets the cropping fields in the output frames manually. * If this cap is set, the generic code will initialize output frame * dimensions to coded rather than display values. */ -#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 3) - -#ifdef DEBUG -# define ff_dlog(ctx, ...) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__) -#else -# define ff_dlog(ctx, ...) do { } while (0) -#endif +#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 4) +/** + * Codec initializes slice-based threading with a main function + */ +#define FF_CODEC_CAP_SLICE_THREAD_HAS_MF (1 << 5) #ifdef TRACE # define ff_tlog(ctx, ...) av_log(ctx, AV_LOG_TRACE, __VA_ARGS__) #else -# define ff_tlog(ctx, ...) do { } while (0) +# define ff_tlog(ctx, ...) do { } while(0) #endif #define FF_DEFAULT_QUANT_BIAS 999999 -#define FF_SANE_NB_CHANNELS 63U +#define FF_QSCALE_TYPE_MPEG1 0 +#define FF_QSCALE_TYPE_MPEG2 1 +#define FF_QSCALE_TYPE_H264 2 +#define FF_QSCALE_TYPE_VP56 3 + +#define FF_SANE_NB_CHANNELS 256U + +#define FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1) -#define FF_SIGNBIT(x) (x >> CHAR_BIT * sizeof(x) - 1) +#if HAVE_SIMD_ALIGN_64 +# define STRIDE_ALIGN 64 /* AVX-512 */ +#elif HAVE_SIMD_ALIGN_32 +# define STRIDE_ALIGN 32 +#elif HAVE_SIMD_ALIGN_16 +# define STRIDE_ALIGN 16 +#else +# define STRIDE_ALIGN 8 +#endif typedef struct FramePool { /** @@ -154,6 +172,19 @@ typedef struct AVCodecInternal { AVPacket *last_pkt_props; /** + * temporary buffer used for encoders to store their bitstream + */ + uint8_t *byte_buffer; + unsigned int byte_buffer_size; + + void *frame_thread_encoder; + + /** + * Number of audio samples to skip at the start of the next decoded frame + */ + int skip_samples; + + /** * hwaccel-specific private data */ void *hwaccel_priv_data; @@ -180,6 +211,13 @@ typedef struct AVCodecInternal { * of the packet (that should be submitted in the next decode call */ size_t compat_decode_partial_size; AVFrame *compat_decode_frame; + + int showed_multi_packet_warning; + + int skip_samples_multiplier; + + /* to prevent infinite loop on errors when draining */ + int nb_draining_errors; } AVCodecInternal; struct AVCodecDefault { @@ -187,6 +225,8 @@ struct AVCodecDefault { const uint8_t *value; }; +extern const uint8_t ff_log2_run[41]; + /** * Return the index into tab at which {a,b} match elements {[0],[1]} of tab. * If there is no such matching pair then size is returned. @@ -195,8 +235,7 @@ int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b); unsigned int avpriv_toupper4(unsigned int x); -int avpriv_lock_avformat(void); -int avpriv_unlock_avformat(void); +void ff_color_frame(AVFrame *frame, const int color[4]); /** * Maximum size in bytes of extradata. @@ -212,6 +251,7 @@ int avpriv_unlock_avformat(void); * ensure the output packet data is large enough, whether provided by the user * or allocated in this function. * + * @param avctx the AVCodecContext of the encoder * @param avpkt the AVPacket * If avpkt->data is already set, avpkt->size is checked * to ensure it is large enough. @@ -219,9 +259,20 @@ int avpriv_unlock_avformat(void); * avpkt->size is set to the specified size. * All other AVPacket fields will be reset with av_init_packet(). * @param size the minimum required packet size - * @return 0 on success, negative error code on failure + * @param min_size This is a hint to the allocation algorithm, which indicates + * to what minimal size the caller might later shrink the packet + * to. Encoders often allocate packets which are larger than the + * amount of data that is written into them as the exact amount is + * not known at the time of allocation. min_size represents the + * size a packet might be shrunk to by the caller. Can be set to + * 0. setting this roughly correctly allows the allocation code + * to choose between several allocation strategies to improve + * speed slightly. + * @return non negative on success, negative error code on failure */ -int ff_alloc_packet(AVPacket *avpkt, int size); +int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size); + +attribute_deprecated int ff_alloc_packet(AVPacket *avpkt, int size); /** * Rescale from sample rate to AVCodecContext.time_base. @@ -229,11 +280,32 @@ int ff_alloc_packet(AVPacket *avpkt, int size); static av_always_inline int64_t ff_samples_to_time_base(AVCodecContext *avctx, int64_t samples) { + if(samples == AV_NOPTS_VALUE) + return AV_NOPTS_VALUE; return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate }, avctx->time_base); } /** + * 2^(x) for integer x + * @return correctly rounded float + */ +static av_always_inline float ff_exp2fi(int x) { + /* Normal range */ + if (-126 <= x && x <= 128) + return av_int2float((x+127) << 23); + /* Too large */ + else if (x > 128) + return INFINITY; + /* Subnormal numbers */ + else if (x > -150) + return av_int2float(1 << (x+149)); + /* Negligibly small */ + else + return 0; +} + +/** * Get a buffer for a frame. This is a wrapper around * AVCodecContext.get_buffer() and should be used instead calling get_buffer() * directly. @@ -246,9 +318,27 @@ int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags); */ int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame); -const uint8_t *avpriv_find_start_code(const uint8_t *restrict p, +int ff_thread_can_start_frame(AVCodecContext *avctx); + +int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx); + +/** + * Call avcodec_open2 recursively by decrementing counter, unlocking mutex, + * calling the function and then restoring again. Assumes the mutex is + * already locked + */ +int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options); + +/** + * Finalize buf into extradata and set its size appropriately. + */ +int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf); + +const uint8_t *avpriv_find_start_code(const uint8_t *p, const uint8_t *end, - uint32_t *restrict state); + uint32_t *state); + +int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec); /** * Check that the provided frame dimensions are valid and set them on the codec @@ -291,6 +381,41 @@ int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame); */ AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx); +int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type); + +/** + * Check AVFrame for A53 side data and allocate and fill SEI message with A53 info + * + * @param frame Raw frame to get A53 side data from + * @param prefix_len Number of bytes to allocate before SEI message + * @param data Pointer to a variable to store allocated memory + * Upon return the variable will hold NULL on error or if frame has no A53 info. + * Otherwise it will point to prefix_len uninitialized bytes followed by + * *sei_size SEI message + * @param sei_size Pointer to a variable to store generated SEI message length + * @return Zero on success, negative error code on failure + */ +int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, + void **data, size_t *sei_size); + +/** + * Get an estimated video bitrate based on frame size, frame rate and coded + * bits per pixel. + */ +int64_t ff_guess_coded_bitrate(AVCodecContext *avctx); + +/** + * Check if a value is in the list. If not, return the default value + * + * @param ctx Context for the log msg + * @param val_name Name of the checked value, for log msg + * @param array_valid_values Array of valid int, ended with INT_MAX + * @param default_value Value return if checked value is not in the array + * @return Value or default_value. + */ +int ff_int_from_list_or_default(void *ctx, const char * val_name, int val, + const int * array_valid_values, int default_value); + #if defined(_WIN32) && CONFIG_SHARED && !defined(BUILDING_avcodec) # define av_export_avcodec __declspec(dllimport) #else |