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FFmpeg
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utils. More...
#include "config.h"#include "libavutil/attributes.h"#include "libavutil/avassert.h"#include "libavutil/avstring.h"#include "libavutil/bprint.h"#include "libavutil/channel_layout.h"#include "libavutil/crc.h"#include "libavutil/frame.h"#include "libavutil/hwcontext.h"#include "libavutil/internal.h"#include "libavutil/mathematics.h"#include "libavutil/mem_internal.h"#include "libavutil/pixdesc.h"#include "libavutil/imgutils.h"#include "libavutil/samplefmt.h"#include "libavutil/dict.h"#include "libavutil/thread.h"#include "avcodec.h"#include "decode.h"#include "hwconfig.h"#include "libavutil/opt.h"#include "mpegvideo.h"#include "thread.h"#include "frame_thread_encoder.h"#include "internal.h"#include "packet_internal.h"#include "put_bits.h"#include "raw.h"#include "bytestream.h"#include "version.h"#include <stdlib.h>#include <stdarg.h>#include <stdatomic.h>#include <limits.h>#include <float.h>#include "libavutil/ffversion.h"Go to the source code of this file.
Macros | |
| #define | TAG_PRINT(x) |
| #define | LICENSE_PREFIX "libavcodec license: " |
Functions | |
| void | av_fast_padded_malloc (void *ptr, unsigned int *size, size_t min_size) |
| Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end which will always be 0. More... | |
| void | av_fast_padded_mallocz (void *ptr, unsigned int *size, size_t min_size) |
| Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call. More... | |
| int | av_codec_is_encoder (const AVCodec *codec) |
| int | av_codec_is_decoder (const AVCodec *codec) |
| int | ff_set_dimensions (AVCodecContext *s, int width, int height) |
| Check that the provided frame dimensions are valid and set them on the codec context. More... | |
| int | ff_set_sar (AVCodecContext *avctx, AVRational sar) |
| Check that the provided sample aspect ratio is valid and set it on the codec context. More... | |
| int | ff_side_data_update_matrix_encoding (AVFrame *frame, enum AVMatrixEncoding matrix_encoding) |
| Add or update AV_FRAME_DATA_MATRIXENCODING side data. More... | |
| void | avcodec_align_dimensions2 (AVCodecContext *s, int *width, int *height, int linesize_align[AV_NUM_DATA_POINTERS]) |
| Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you also ensure that all line sizes are a multiple of the respective linesize_align[i]. More... | |
| void | avcodec_align_dimensions (AVCodecContext *s, int *width, int *height) |
| Modify width and height values so that they will result in a memory buffer that is acceptable for the codec if you do not use any horizontal padding. More... | |
| int | avcodec_enum_to_chroma_pos (int *xpos, int *ypos, enum AVChromaLocation pos) |
| Converts AVChromaLocation to swscale x/y chroma position. More... | |
| enum AVChromaLocation | avcodec_chroma_pos_to_enum (int xpos, int ypos) |
| Converts swscale x/y chroma position to AVChromaLocation. More... | |
| int | avcodec_fill_audio_frame (AVFrame *frame, int nb_channels, enum AVSampleFormat sample_fmt, const uint8_t *buf, int buf_size, int align) |
| Fill AVFrame audio data and linesize pointers. More... | |
| void | ff_color_frame (AVFrame *frame, const int c[4]) |
| int | avcodec_default_execute (AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) |
| int | avcodec_default_execute2 (AVCodecContext *c, int(*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) |
| enum AVPixelFormat | avpriv_find_pix_fmt (const PixelFormatTag *tags, unsigned int fourcc) |
| unsigned | av_codec_get_codec_properties (const AVCodecContext *codec) |
| int | av_codec_get_max_lowres (const AVCodec *codec) |
| int | avpriv_codec_get_cap_skip_frame_fill_param (const AVCodec *codec) |
| static int64_t | get_bit_rate (AVCodecContext *ctx) |
| static void | ff_lock_avcodec (AVCodecContext *log_ctx, const AVCodec *codec) |
| static void | ff_unlock_avcodec (const AVCodec *codec) |
| int attribute_align_arg | avcodec_open2 (AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| Initialize the AVCodecContext to use the given AVCodec. More... | |
| void | avcodec_flush_buffers (AVCodecContext *avctx) |
| Reset the internal codec state / flush internal buffers. More... | |
| void | avsubtitle_free (AVSubtitle *sub) |
| Free all allocated data in the given subtitle struct. More... | |
| av_cold int | avcodec_close (AVCodecContext *avctx) |
| Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext itself). More... | |
| const char * | avcodec_get_name (enum AVCodecID id) |
| Get the name of a codec. More... | |
| size_t | av_get_codec_tag_string (char *buf, size_t buf_size, unsigned int codec_tag) |
| Put a string representing the codec tag codec_tag in buf. More... | |
| void | avcodec_string (char *buf, int buf_size, AVCodecContext *enc, int encode) |
| const char * | av_get_profile_name (const AVCodec *codec, int profile) |
| Return a name for the specified profile, if available. More... | |
| const char * | avcodec_profile_name (enum AVCodecID codec_id, int profile) |
| Return a name for the specified profile, if available. More... | |
| unsigned | avcodec_version (void) |
| Return the LIBAVCODEC_VERSION_INT constant. More... | |
| const char * | avcodec_configuration (void) |
| Return the libavcodec build-time configuration. More... | |
| const char * | avcodec_license (void) |
| Return the libavcodec license. More... | |
| int | av_get_exact_bits_per_sample (enum AVCodecID codec_id) |
| Return codec bits per sample. More... | |
| enum AVCodecID | av_get_pcm_codec (enum AVSampleFormat fmt, int be) |
| Return the PCM codec associated with a sample format. More... | |
| int | av_get_bits_per_sample (enum AVCodecID codec_id) |
| Return codec bits per sample. More... | |
| static int | get_audio_frame_duration (enum AVCodecID id, int sr, int ch, int ba, uint32_t tag, int bits_per_coded_sample, int64_t bitrate, uint8_t *extradata, int frame_size, int frame_bytes) |
| int | av_get_audio_frame_duration (AVCodecContext *avctx, int frame_bytes) |
| Return audio frame duration. More... | |
| int | av_get_audio_frame_duration2 (AVCodecParameters *par, int frame_bytes) |
| This function is the same as av_get_audio_frame_duration(), except it works with AVCodecParameters instead of an AVCodecContext. More... | |
| int | ff_thread_init (AVCodecContext *s) |
| unsigned int | av_xiphlacing (unsigned char *s, unsigned int v) |
| Encode extradata length to a buffer. More... | |
| int | ff_match_2uint16 (const uint16_t(*tab)[2], int size, int a, int b) |
| Return the index into tab at which {a,b} match elements {[0],[1]} of tab. More... | |
| const AVCodecHWConfig * | avcodec_get_hw_config (const AVCodec *codec, int index) |
| Retrieve supported hardware configurations for a codec. More... | |
| AVHWAccel * | av_hwaccel_next (const AVHWAccel *hwaccel) |
| If hwaccel is NULL, returns the first registered hardware accelerator, if hwaccel is non-NULL, returns the next registered hardware accelerator after hwaccel, or NULL if hwaccel is the last one. More... | |
| void | av_register_hwaccel (AVHWAccel *hwaccel) |
| Register the hardware accelerator hwaccel. More... | |
| int | av_lockmgr_register (int(*cb)(void **mutex, enum AVLockOp op)) |
| Register a user provided lock manager supporting the operations specified by AVLockOp. More... | |
| unsigned int | avpriv_toupper4 (unsigned int x) |
| int | ff_thread_ref_frame (ThreadFrame *dst, const ThreadFrame *src) |
| enum AVPixelFormat | ff_thread_get_format (AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
| Wrapper around get_format() for frame-multithreaded codecs. More... | |
| int | ff_thread_get_buffer (AVCodecContext *avctx, ThreadFrame *f, int flags) |
| Wrapper around get_buffer() for frame-multithreaded codecs. More... | |
| void | ff_thread_release_buffer (AVCodecContext *avctx, ThreadFrame *f) |
| Wrapper around release_buffer() frame-for multithreaded codecs. More... | |
| void | ff_thread_finish_setup (AVCodecContext *avctx) |
| If the codec defines update_thread_context(), call this when they are ready for the next thread to start decoding the next frame. More... | |
| void | ff_thread_report_progress (ThreadFrame *f, int progress, int field) |
| Notify later decoding threads when part of their reference picture is ready. More... | |
| void | ff_thread_await_progress (ThreadFrame *f, int progress, int field) |
| Wait for earlier decoding threads to finish reference pictures. More... | |
| int | ff_thread_can_start_frame (AVCodecContext *avctx) |
| int | ff_alloc_entries (AVCodecContext *avctx, int count) |
| void | ff_reset_entries (AVCodecContext *avctx) |
| void | ff_thread_await_progress2 (AVCodecContext *avctx, int field, int thread, int shift) |
| void | ff_thread_report_progress2 (AVCodecContext *avctx, int field, int thread, int n) |
| int | avcodec_is_open (AVCodecContext *s) |
| const uint8_t * | avpriv_find_start_code (const uint8_t *av_restrict p, const uint8_t *end, uint32_t *av_restrict state) |
| AVCPBProperties * | av_cpb_properties_alloc (size_t *size) |
| Allocate a CPB properties structure and initialize its fields to default values. More... | |
| AVCPBProperties * | ff_add_cpb_side_data (AVCodecContext *avctx) |
| Add a CPB properties side data to an encoding context. More... | |
| static void | codec_parameters_reset (AVCodecParameters *par) |
| AVCodecParameters * | avcodec_parameters_alloc (void) |
| Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). More... | |
| void | avcodec_parameters_free (AVCodecParameters **ppar) |
| Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer. More... | |
| int | avcodec_parameters_copy (AVCodecParameters *dst, const AVCodecParameters *src) |
| Copy the contents of src to dst. More... | |
| int | avcodec_parameters_from_context (AVCodecParameters *par, const AVCodecContext *codec) |
| Fill the parameters struct based on the values from the supplied codec context. More... | |
| int | avcodec_parameters_to_context (AVCodecContext *codec, const AVCodecParameters *par) |
| Fill the codec context based on the values from the supplied codec parameters. More... | |
| static unsigned | bcd2uint (uint8_t bcd) |
| int | ff_alloc_timecode_sei (const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size) |
| Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info. More... | |
| int64_t | ff_guess_coded_bitrate (AVCodecContext *avctx) |
| Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel. More... | |
| int | ff_int_from_list_or_default (void *ctx, const char *val_name, int val, const int *array_valid_values, int default_value) |
| Check if a value is in the list. More... | |
Variables | |
| const char | av_codec_ffversion [] = "FFmpeg version " FFMPEG_VERSION |
| static AVMutex | codec_mutex = AV_MUTEX_INITIALIZER |
utils.
Definition in file utils.c.
| #define TAG_PRINT | ( | x | ) |
Referenced by av_get_codec_tag_string().
| #define LICENSE_PREFIX "libavcodec license: " |
Referenced by avcodec_license().
| int ff_set_dimensions | ( | AVCodecContext * | s, |
| int | width, | ||
| int | height | ||
| ) |
Check that the provided frame dimensions are valid and set them on the codec context.
Definition at line 106 of file utils.c.
Referenced by alloc_buffers(), aom_decode(), apply_param_change(), avcodec_open2(), avs_decode_init(), bmp_decode_frame(), cdg_decode_init(), cdxl_decode_frame(), cfhd_decode(), clv_decode_init(), cmv_process_header(), codec_reinit(), dds_decode(), decode_blocks(), decode_fint(), decode_frame(), decode_frame_header(), decode_frame_headers(), decode_header(), decode_idat_chunk(), decode_init(), decode_seq_header(), dirac_decode_data_unit(), dnxhd_decode_frame(), dvbsub_parse_display_definition_segment(), dvdsub_parse_extradata(), dvvideo_decode_frame(), execute_code(), ff_h263_decode_frame(), ff_ivi_decode_frame(), ff_mjpeg_decode_sof(), ff_pnm_decode_header(), ff_rv34_decode_frame(), ff_vc1_decode_entry_point(), ff_vc1_decode_sequence_header(), ff_vp56_decode_frame(), ffmal_update_format(), fits_decode_frame(), flashsv_decode_frame(), g2m_decode_frame(), get_siz(), gif_decode_frame(), h261_decode_frame(), hqa_decode_frame(), init_image(), libdav1d_receive_frame(), libopenjpeg_decode_frame(), librsvg_decode_frame(), libuavs3d_decode_frame(), magy_decode_frame(), mediacodec_dec_parse_format(), mimic_decode_frame(), mpeg4_decode_header(), mpeg_decode_postinit(), mpegvideo_extract_headers(), mvc_decode_init(), parse_presentation_segment(), pcx_decode_frame(), pgx_decode_frame(), photocd_decode_frame(), pix_decode_frame(), pixlet_decode_frame(), process_frame_obj(), ptx_decode_frame(), read_huffman_tree(), rl2_decode_init(), rv20_decode_picture_header(), seqvideo_decode_init(), set_context_with_sequence(), sunrast_decode_frame(), svc_decode_frame(), svq1_decode_frame(), svq3_decode_init(), tdsc_parse_tdsf(), tgq_decode_frame(), tgv_decode_frame(), tqi_decode_frame(), truemotion1_decode_header(), truemotion2rt_decode_header(), txd_decode_frame(), update_context_with_frame_header(), update_dimensions(), update_size(), v4l2_handle_event(), vp56_size_changed(), vp5_parse_header(), vp6_parse_header(), vp8_lossless_decode_frame(), vpx_decode(), vqa_decode_init(), xbm_decode_frame(), xpm_decode_frame(), and xwd_decode_frame().
| int ff_set_sar | ( | AVCodecContext * | avctx, |
| AVRational | sar | ||
| ) |
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition at line 121 of file utils.c.
Referenced by aom_decode(), decode_frame(), decode_header(), decode_sequence_header_adv(), dirac_decode_data_unit(), dvvideo_decode_frame(), export_stream_params(), ff_h263_decode_frame(), h264_slice_header_init(), libdav1d_receive_frame(), mediacodec_dec_parse_format(), read_huffman_tree(), truemotion1_decode_header(), and update_context_with_frame_header().
| int ff_side_data_update_matrix_encoding | ( | AVFrame * | frame, |
| enum AVMatrixEncoding | matrix_encoding | ||
| ) |
Add or update AV_FRAME_DATA_MATRIXENCODING side data.
Definition at line 136 of file utils.c.
Referenced by ac3_decode_frame(), ff_dca_core_filter_frame(), ff_dca_lbr_filter_frame(), ff_dca_xll_filter_frame(), and output_data().
Definition at line 414 of file utils.c.
Referenced by h264_field_start().
| enum AVPixelFormat avpriv_find_pix_fmt | ( | const PixelFormatTag * | tags, |
| unsigned int | fourcc | ||
| ) |
Definition at line 469 of file utils.c.
Referenced by avformat_find_stream_info(), avi_write_header(), dshow_pixfmt(), frm_read_header(), mov_get_rawvideo_codec_tag(), and raw_init_decoder().
Definition at line 498 of file utils.c.
Referenced by try_decode_frame().
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Definition at line 502 of file utils.c.
Referenced by avcodec_open2(), and avcodec_string().
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Definition at line 533 of file utils.c.
Referenced by avcodec_open2().
Definition at line 539 of file utils.c.
Referenced by avcodec_open2().
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static |
Definition at line 1613 of file utils.c.
Referenced by av_get_audio_frame_duration(), and av_get_audio_frame_duration2().
| int ff_thread_init | ( | AVCodecContext * | s | ) |
Definition at line 1831 of file utils.c.
Referenced by avcodec_open2().
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.
Definition at line 1852 of file utils.c.
Referenced by ff_h263_encode_picture_header(), ff_mpv_encode_init(), and svq1_write_header().
Definition at line 1888 of file utils.c.
Referenced by ff_codec_get_id(), ff_mpv_decode_init(), mpeg_decode_frame(), and validate_codec_tag().
| int ff_thread_ref_frame | ( | ThreadFrame * | dst, |
| const ThreadFrame * | src | ||
| ) |
Definition at line 1896 of file utils.c.
Referenced by av1_frame_ref(), copy_fields(), decode_frame_common(), ff_h264_ref_picture(), ff_mpeg_ref_picture(), hevc_ref_frame(), mimic_decode_init(), update_frames(), vp3_decode_frame(), vp8_release_frame(), vp9_decode_frame(), vp9_decode_init(), vp9_frame_ref(), and wv_dsd_reset().
| enum AVPixelFormat ff_thread_get_format | ( | AVCodecContext * | avctx, |
| const enum AVPixelFormat * | fmt | ||
| ) |
Wrapper around get_format() for frame-multithreaded codecs.
Call this function instead of avctx->get_format(). Cannot be called after the codec has called ff_thread_finish_setup().
| avctx | The current context. |
| fmt | The list of available formats. |
| int ff_thread_get_buffer | ( | AVCodecContext * | avctx, |
| ThreadFrame * | f, | ||
| int | flags | ||
| ) |
Wrapper around get_buffer() for frame-multithreaded codecs.
Call this function instead of ff_get_buffer(f). Cannot be called after the codec has called ff_thread_finish_setup().
| avctx | The current context. |
| f | The frame to write into. |
| void ff_thread_release_buffer | ( | AVCodecContext * | avctx, |
| ThreadFrame * | f | ||
| ) |
Wrapper around release_buffer() frame-for multithreaded codecs.
Call this function instead of avctx->release_buffer(f). The AVFrame will be copied and the actual release_buffer() call will be performed later. The contents of data pointed to by the AVFrame should not be changed until ff_thread_get_buffer() is called on it.
| avctx | The current context. |
| f | The picture being released. |
Definition at line 1931 of file utils.c.
Referenced by ff_thread_ref_frame().
| void ff_thread_finish_setup | ( | AVCodecContext * | avctx | ) |
If the codec defines update_thread_context(), call this when they are ready for the next thread to start decoding the next frame.
After calling it, do not change any variables read by the update_thread_context() method, or call ff_thread_get_buffer().
| avctx | The context. |
| void ff_thread_report_progress | ( | ThreadFrame * | f, |
| int | progress, | ||
| int | field | ||
| ) |
Notify later decoding threads when part of their reference picture is ready.
Call this when some part of the picture is finished decoding. Later calls with lower values of progress have no effect.
| f | The picture being decoded. |
| progress | Value, in arbitrary units, of how much of the picture has decoded. |
| field | The field being decoded, for field-picture codecs. 0 for top field or frame pictures, 1 for bottom field. |
| void ff_thread_await_progress | ( | ThreadFrame * | f, |
| int | progress, | ||
| int | field | ||
| ) |
Wait for earlier decoding threads to finish reference pictures.
Call this before accessing some part of a picture, with a given value for progress, and it will return after the responsible decoding thread calls ff_thread_report_progress() with the same or higher value for progress.
| f | The picture being referenced. |
| progress | Value, in arbitrary units, to wait for. |
| field | The field being referenced, for field-picture codecs. 0 for top field or frame pictures, 1 for bottom field. |
| int ff_thread_can_start_frame | ( | AVCodecContext * | avctx | ) |
Definition at line 1949 of file utils.c.
Referenced by ff_mpv_frame_start(), and h264_frame_start().
| int ff_alloc_entries | ( | AVCodecContext * | avctx, |
| int | count | ||
| ) |
| void ff_reset_entries | ( | AVCodecContext * | avctx | ) |
| void ff_thread_await_progress2 | ( | AVCodecContext * | avctx, |
| int | field, | ||
| int | thread, | ||
| int | shift | ||
| ) |
| void ff_thread_report_progress2 | ( | AVCodecContext * | avctx, |
| int | field, | ||
| int | thread, | ||
| int | n | ||
| ) |
| AVCPBProperties* ff_add_cpb_side_data | ( | AVCodecContext * | avctx | ) |
Add a CPB properties side data to an encoding context.
Definition at line 2025 of file utils.c.
Referenced by aom_init(), ff_mpv_encode_init(), libx265_encode_init(), mpeg_decode_sequence_extension(), nvenc_setup_encoder(), qsv_retrieve_enc_params(), svc_encode_init(), vpx_init(), and X264_init().
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static |
Definition at line 2056 of file utils.c.
Referenced by avcodec_parameters_alloc(), avcodec_parameters_copy(), avcodec_parameters_free(), and avcodec_parameters_from_context().
| AVCodecParameters* avcodec_parameters_alloc | ( | void | ) |
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
The returned struct must be freed with avcodec_parameters_free().
Definition at line 2076 of file utils.c.
Referenced by av_bsf_alloc(), avformat_new_stream(), ff_mov_init_hinting(), ff_rtsp_open_transport_ctx(), flv_read_packet(), mov_create_chapter_track(), mov_create_timecode_track(), and new_output_stream().
| void avcodec_parameters_free | ( | AVCodecParameters ** | ppar | ) |
Free an AVCodecParameters instance and everything associated with it and write NULL to the supplied pointer.
Definition at line 2086 of file utils.c.
Referenced by av_bsf_free(), ff_mov_close_hinting(), ff_mov_init_hinting(), ff_rtsp_open_transport_ctx(), ffmpeg_cleanup(), flv_read_packet(), free_stream(), and mov_free().
| int avcodec_parameters_copy | ( | AVCodecParameters * | dst, |
| const AVCodecParameters * | src | ||
| ) |
Copy the contents of src to dst.
Any allocated fields in dst are freed and replaced with newly allocated duplicates of the corresponding fields in src.
Definition at line 2097 of file utils.c.
Referenced by asfrtp_parse_sdp_line(), av_bsf_init(), bsf_list_init(), copy_stream_props(), dash_init(), detect_stream_specific(), extract_extradata_init(), ff_rtp_chain_mux_open(), ff_stream_add_bitstream_filter(), ff_stream_encode_params_copy(), hds_write_header(), hls_mux_init(), init_output_bsfs(), init_output_stream_streamcopy(), ism_write_header(), main(), mpegts_init(), open_demux_for_component(), open_output_file(), open_slave(), read_gab2_sub(), read_header(), rtp_mpegts_write_header(), sap_fetch_packet(), sap_read_header(), segment_mux_init(), set_stream_info_from_input_stream(), webm_chunk_init(), and write_muxed_file().
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static |
Definition at line 2229 of file utils.c.
Referenced by ff_alloc_timecode_sei().
| int ff_alloc_timecode_sei | ( | const AVFrame * | frame, |
| AVRational | rate, | ||
| size_t | prefix_len, | ||
| void ** | data, | ||
| size_t * | sei_size | ||
| ) |
Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info.
| frame | Raw frame to get S12M timecode side data from |
| rate | The frame rate |
| prefix_len | Number of bytes to allocate before SEI message |
| data | Pointer to a variable to store allocated memory Upon return the variable will hold NULL on error or if frame has no S12M timecode info. Otherwise it will point to prefix_len uninitialized bytes followed by *sei_size SEI message |
| sei_size | Pointer to a variable to store generated SEI message length |
Definition at line 2238 of file utils.c.
Referenced by nvenc_send_frame().
| int64_t ff_guess_coded_bitrate | ( | AVCodecContext * | avctx | ) |
Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel.
Definition at line 2302 of file utils.c.
Referenced by encode_init(), raw_encode_init(), v308_encode_init(), v408_encode_init(), v410_encode_init(), and y41p_encode_init().
| int ff_int_from_list_or_default | ( | void * | ctx, |
| const char * | val_name, | ||
| int | val, | ||
| const int * | array_valid_values, | ||
| int | default_value | ||
| ) |
Check if a value is in the list.
If not, return the default value
| ctx | Context for the log msg |
| val_name | Name of the checked value, for log msg |
| array_valid_values | Array of valid int, ended with INT_MAX |
| default_value | Value return if checked value is not in the array |
Definition at line 2323 of file utils.c.
Referenced by prores_encode_frame().
| const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION |
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static |
Definition at line 70 of file utils.c.
Referenced by ff_lock_avcodec(), and ff_unlock_avcodec().
1.8.11