FFmpeg
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common internal api header. More...
#include <stdint.h>
#include "libavutil/buffer.h"
#include "libavutil/channel_layout.h"
#include "libavutil/fifo.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#include "config.h"
Go to the source code of this file.
Data Structures | |
struct | DecodeSimpleContext |
struct | EncodeSimpleContext |
struct | AVCodecInternal |
struct | AVCodecDefault |
Macros | |
#define | FF_CODEC_CAP_INIT_THREADSAFE (1 << 0) |
The codec does not modify any global variables in the init function, allowing to call the init function without locking any global mutexes. More... | |
#define | FF_CODEC_CAP_INIT_CLEANUP (1 << 1) |
The codec allows calling the close function for deallocation even if the init function returned a failure. More... | |
#define | FF_CODEC_CAP_SETS_PKT_DTS (1 << 2) |
Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set AVFrame.pkt_dts manually. More... | |
#define | FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM (1 << 3) |
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame setting. More... | |
#define | FF_CODEC_CAP_EXPORTS_CROPPING (1 << 4) |
The decoder sets the cropping fields in the output frames manually. More... | |
#define | FF_CODEC_CAP_SLICE_THREAD_HAS_MF (1 << 5) |
Codec initializes slice-based threading with a main function. More... | |
#define | FF_CODEC_CAP_ALLOCATE_PROGRESS (1 << 6) |
#define | FF_CODEC_TAGS_END -1 |
AVCodec.codec_tags termination value. More... | |
#define | ff_tlog(ctx, ...) do { } while(0) |
#define | FF_DEFAULT_QUANT_BIAS 999999 |
#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 512U |
#define | FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1) |
#define | STRIDE_ALIGN 8 |
#define | FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE) |
Maximum size in bytes of extradata. More... | |
#define | FF_REGET_BUFFER_FLAG_READONLY 1 |
the returned buffer does not need to be writable More... | |
#define | av_export_avcodec |
Functions | |
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... | |
unsigned int | avpriv_toupper4 (unsigned int x) |
void | ff_color_frame (AVFrame *frame, const int color[4]) |
int | ff_alloc_packet2 (AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size) |
Check AVPacket size and/or allocate data. More... | |
static av_always_inline int64_t | ff_samples_to_time_base (AVCodecContext *avctx, int64_t samples) |
Rescale from sample rate to AVCodecContext.time_base. More... | |
static av_always_inline float | ff_exp2fi (int x) |
2^(x) for integer x More... | |
int | ff_get_buffer (AVCodecContext *avctx, AVFrame *frame, int flags) |
Get a buffer for a frame. More... | |
int | ff_reget_buffer (AVCodecContext *avctx, AVFrame *frame, int flags) |
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available. More... | |
int | ff_thread_can_start_frame (AVCodecContext *avctx) |
int | avpriv_h264_has_num_reorder_frames (AVCodecContext *avctx) |
const uint8_t * | avpriv_find_start_code (const uint8_t *p, const uint8_t *end, uint32_t *state) |
int | avpriv_codec_get_cap_skip_frame_fill_param (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... | |
int | ff_get_format (AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
Select the (possibly hardware accelerated) pixel format. More... | |
AVCPBProperties * | ff_add_cpb_side_data (AVCodecContext *avctx) |
Add a CPB properties side data to an encoding context. More... | |
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... | |
void | ff_dvdsub_parse_palette (uint32_t *palette, const char *p) |
Variables | |
const uint8_t | ff_log2_run [41] |
common internal api header.
Definition in file internal.h.
#define FF_CODEC_CAP_INIT_THREADSAFE (1 << 0) |
The codec does not modify any global variables in the init function, allowing to call the init function without locking any global mutexes.
Definition at line 41 of file internal.h.
Referenced by a64multi_encode_frame(), aptx_close(), aptx_decode_frame(), cyuv_decode_frame(), decode_end(), decode_flush(), decode_frame(), encode_init(), ff_lock_avcodec(), ff_mpeg1_init_uni_ac_vlc(), ff_sp5x_process_packet(), ff_unlock_avcodec(), flush(), png_dec_end(), pnm_encode_init(), read_access_unit(), and v408_decode_frame().
#define FF_CODEC_CAP_INIT_CLEANUP (1 << 1) |
The codec allows calling the close function for deallocation even if the init function returned a failure.
Without this capability flag, a codec does such cleanup internally when returning failures from the init function and does not expect the close function to be called at all.
Definition at line 49 of file internal.h.
Referenced by a64multi_encode_frame(), avcodec_open2(), decode_flush(), decode_frame(), ff_mpeg1_init_uni_ac_vlc(), ff_sp5x_process_packet(), ff_speedhq_mb_y_order_to_mb(), flashsv_decode_frame(), mlp_encode_close(), nvenc_old_init(), predictor_calc_error(), and read_huffman_tree().
#define FF_CODEC_CAP_SETS_PKT_DTS (1 << 2) |
Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set 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.
Definition at line 56 of file internal.h.
Referenced by decode_flush(), decode_simple_internal(), and ff_sp5x_process_packet().
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM (1 << 3) |
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame setting.
Definition at line 61 of file internal.h.
Referenced by avpriv_codec_get_cap_skip_frame_fill_param(), decode_flush(), and png_dec_end().
#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 4) |
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.
Definition at line 67 of file internal.h.
Referenced by decode_flush(), ff_get_buffer(), and read_huffman_tree().
#define FF_CODEC_CAP_SLICE_THREAD_HAS_MF (1 << 5) |
Codec initializes slice-based threading with a main function.
Definition at line 71 of file internal.h.
Referenced by ff_slice_thread_init().
#define FF_CODEC_CAP_ALLOCATE_PROGRESS (1 << 6) |
Definition at line 76 of file internal.h.
Referenced by ff_vp8_decode_init(), frame_worker_thread(), png_dec_end(), read_huffman_tree(), and thread_get_buffer_internal().
#define FF_CODEC_TAGS_END -1 |
AVCodec.codec_tags termination value.
Definition at line 81 of file internal.h.
Referenced by LLVMFuzzerTestOneInput().
Definition at line 87 of file internal.h.
Referenced by avi_sync(), decode_format80(), decode_residual(), decode_slice(), fetch_diagonal_mv(), ff_filter_frame(), ff_h264_decode_mb_cabac(), ff_h264_decode_mb_cavlc(), ff_h264_filter_mb(), ff_tlog_link(), ff_tlog_ref(), ff_wma_init(), filter_mb_dir(), h263p_decode_umotion(), h264_initialise_ref_list(), h264_probe(), ipvideo_decode_block_opcode_0x2(), ipvideo_decode_block_opcode_0x3(), ipvideo_decode_block_opcode_0x4(), ipvideo_decode_block_opcode_0x5(), ipvideo_decode_block_opcode_0x6_16(), ipvideo_decode_format_06_opcodes(), ipvideo_decode_format_11_opcodes(), mpeg2_decode_block_intra(), mpeg4_decode_block(), mpeg_decode_mb(), pred_16x8_motion(), pred_8x16_motion(), pred_intra_mode(), pred_motion(), pred_non_zero_count(), pred_pskip_motion(), rv10_decode_packet(), wma_decode_block(), wma_decode_frame(), and wma_decode_superframe().
#define FF_DEFAULT_QUANT_BIAS 999999 |
Definition at line 91 of file internal.h.
#define FF_QSCALE_TYPE_MPEG1 0 |
Definition at line 93 of file internal.h.
Referenced by ff_h263_decode_frame(), ff_mpv_export_qp_table(), ff_norm_qscale(), finish_frame(), and rv10_decode_frame().
#define FF_QSCALE_TYPE_MPEG2 1 |
Definition at line 94 of file internal.h.
Referenced by ff_norm_qscale(), ff_qp_table_extract(), and slice_end().
#define FF_QSCALE_TYPE_H264 2 |
Definition at line 95 of file internal.h.
Referenced by ff_norm_qscale().
#define FF_QSCALE_TYPE_VP56 3 |
Definition at line 96 of file internal.h.
Referenced by ff_norm_qscale().
#define FF_SANE_NB_CHANNELS 512U |
Definition at line 98 of file internal.h.
Referenced by avcodec_open2(), epaf_read_header(), ff_decode_frame_props(), genh_read_header(), ircam_read_header(), LLVMFuzzerTestOneInput(), parse_strk(), pvf_read_header(), read_header(), read_specific_config(), and xvag_read_header().
#define FF_SIGNBIT | ( | x | ) | ((x) >> CHAR_BIT * sizeof(x) - 1) |
Definition at line 100 of file internal.h.
Referenced by aptx_prediction_filtering(), dnxhd_10bit_dct_quantize(), inter_predict(), mv_pred_direct(), and scale_mv().
#define STRIDE_ALIGN 8 |
Definition at line 109 of file internal.h.
Referenced by avcodec_align_dimensions2(), ff_get_buffer(), load_input_picture(), and update_frame_pool().
#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE) |
Maximum size in bytes of extradata.
This value was chosen such that every bit of the buffer is addressable by a 32-bit signed integer as used by get_bits.
Definition at line 235 of file internal.h.
Referenced by avcodec_open2().
#define FF_REGET_BUFFER_FLAG_READONLY 1 |
the returned buffer does not need to be writable
Definition at line 303 of file internal.h.
Referenced by decode_frame(), decode_frame_lscr(), and reget_buffer_internal().
#define av_export_avcodec |
Definition at line 395 of file internal.h.
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 1877 of file utils.c.
Referenced by ff_h263_encode_picture_header(), ff_mpv_encode_init(), and svq1_write_header().
Definition at line 1913 of file utils.c.
Referenced by ff_codec_get_id(), ff_mpv_decode_init(), mpeg_decode_frame(), and validate_codec_tag().
Definition at line 413 of file utils.c.
Referenced by h264_field_start().
int ff_alloc_packet2 | ( | AVCodecContext * | avctx, |
AVPacket * | avpkt, | ||
int64_t | size, | ||
int64_t | min_size | ||
) |
Check AVPacket size and/or allocate data.
Encoders supporting AVCodec.encode2() can use this as a convenience to ensure the output packet data is large enough, whether provided by the user or allocated in this function.
avctx | the AVCodecContext of the encoder |
avpkt | the AVPacket If avpkt->data is already set, avpkt->size is checked to ensure it is large enough. If avpkt->data is NULL, a new buffer is allocated. avpkt->size is set to the specified size. All other AVPacket fields will be reset with av_init_packet(). |
size | the minimum required packet size |
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. |
Definition at line 33 of file encode.c.
Referenced by a64multi_encode_frame(), aac_encode_frame(), adpcm_encode_frame(), adx_encode_frame(), alac_encode_frame(), amr_wb_encode_frame(), aptx_encode_frame(), avui_encode_frame(), bmp_encode_frame(), cfhd_encode_frame(), cinepak_encode_frame(), cng_encode_frame(), dnxhd_encode_picture(), dvvideo_encode_frame(), encode_apng(), encode_frame(), encode_nals(), encode_picture_ls(), encode_png(), encode_superframe(), ff_ac3_encode_frame_common_end(), ff_mpv_encode_picture(), ffat_encode(), fits_encode_frame(), flac_encode_frame(), flashsv2_encode_frame(), flashsv_encode_frame(), g722_encode_frame(), g723_1_encode_frame(), g726_reset(), gif_encode_frame(), hap_encode(), ilbc_encode_frame(), libcodec2_encode(), libgsm_encode_frame(), libkvazaar_encode(), libopenjpeg_encode_frame(), libopus_encode(), libshine_encode_frame(), libvorbis_encode_frame(), libwebp_anim_encode_frame(), libwebp_encode_frame(), libx265_encode_frame(), ljpeg_encode_frame(), magy_encode_frame(), mlp_encode_frame(), mp3lame_encode_frame(), MPA_encode_frame(), omx_encode_frame(), opus_encode_frame(), pam_encode_frame(), pcm_dvd_encode_frame(), pcm_encode_frame(), pcx_encode_frame(), pnm_encode_frame(), predictor_calc_error(), prores_encode_frame(), qtrle_encode_frame(), ra144_encode_frame(), raw_encode(), roq_dpcm_encode_frame(), roq_encode_frame(), rpza_encode_frame(), s302m_encode2_frame(), sbc_encode_frame(), storeframe(), sunrast_encode_frame(), svc_encode_frame(), svq1_encode_frame(), targa_encode_frame(), tta_encode_frame(), twolame_encode_frame(), utvideo_encode_frame(), v308_encode_frame(), v408_encode_frame(), v410_encode_frame(), vorbis_encode_frame(), vtenc_cm_to_avpacket(), wavpack_encode_frame(), XAVS_frame(), xbm_encode_frame(), xface_encode_frame(), xvid_encode_frame(), xwd_encode_frame(), y41p_encode_frame(), and yuv4_encode_frame().
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static |
Rescale from sample rate to AVCodecContext.time_base.
Definition at line 268 of file internal.h.
Referenced by amr_wb_encode_frame(), encode_frame(), encode_simple_internal(), encode_superframe(), ff_ac3_encode_frame_common_end(), ff_af_queue_remove(), flac_encode_frame(), g722_encode_frame(), libvorbis_encode_frame(), MPA_encode_frame(), pcm_dvd_encode_frame(), tta_encode_frame(), twolame_encode_frame(), and wavpack_encode_frame().
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static |
2^(x) for integer x
Definition at line 281 of file internal.h.
Referenced by init_band_stepsize(), and sbr_dequant().
int ff_get_buffer | ( | AVCodecContext * | avctx, |
AVFrame * | frame, | ||
int | flags | ||
) |
Get a buffer for a frame.
This is a wrapper around AVCodecContext.get_buffer() and should be used instead calling get_buffer() directly.
Definition at line 1902 of file decode.c.
Referenced by ac3_decode_frame(), adpcm_decode_frame(), adx_decode_frame(), alloc_frame(), amrnb_decode_frame(), amrwb_decode_frame(), aom_decode(), ape_decode_frame(), aptx_decode_frame(), atrac1_decode_frame(), atrac3_decode_frame(), atrac3al_decode_frame(), atrac3p_decode_frame(), atrac9_decode_frame(), aura_decode_frame(), avui_decode_frame(), bfi_decode_frame(), binkaudio_receive_frame(), bitpacked_decode_yuv422p10(), bmp_decode_frame(), bmv_aud_decode_frame(), cdg_decode_frame(), cdxl_decode_frame(), cinaudio_decode_frame(), cmv_decode_frame(), cng_decode_frame(), cook_decode_frame(), copy_frame(), copy_output(), cuvid_output_frame(), cyuv_decode_frame(), dds_decode(), decode_frame(), decode_pic(), decode_tag(), dfa_decode_frame(), dpcm_decode_frame(), dss_sp_decode_frame(), eightsvx_decode_frame(), escape124_decode_frame(), escape130_decode_frame(), evrc_decode_frame(), execute_code(), fastaudio_decode(), fdk_aac_decode_frame(), ff_dca_lbr_filter_frame(), ff_dca_xll_filter_frame(), ff_exp2fi(), ff_ivi_decode_frame(), ff_mjpeg_decode_sof(), ff_snow_common_init_after_header(), ff_snow_get_buffer(), ff_thread_get_buffer(), ff_twinvq_decode_frame(), ff_vp56_decode_frame(), ffat_decode(), ffmal_copy_frame(), filter_frame(), filter_frame_fixed(), filter_frame_float(), fits_decode_frame(), flush(), frame_configure_elements(), g2m_decode_frame(), g722_decode_frame(), g723_1_decode_frame(), g726_reset(), gdv_decode_frame(), get_buffer(), get_buffer_with_edge(), gif_decode_frame(), gsm_decode_frame(), hcom_decode(), hnm_decode_frame(), hq_decode_frame(), hqa_decode_frame(), idcin_decode_frame(), ilbc_decode_frame(), imc_decode_frame(), init_frames(), ipu_decode_frame(), ipvideo_decode_frame(), libcelt_dec_decode(), libcodec2_decode(), libgsm_decode_frame(), libopus_decode(), librsvg_decode_frame(), libspeex_decode_frame(), libuavs3d_decode_frame(), m101_decode_frame(), mace_decode_frame(), mediacodec_wrap_sw_buffer(), mp_decode_frame(), mpc7_decode_frame(), mpc8_decode_frame(), msp2_decode_frame(), mss2_decode_frame(), mvc_decode_frame(), mxpeg_decode_frame(), oggvorbis_decode_frame(), on2avc_decode_frame(), opus_decode_packet(), output_data(), paf_audio_decode(), pcm_bluray_decode_frame(), pcm_decode_frame(), pcm_dvd_decode_frame(), pcx_decode_frame(), pgx_decode_frame(), pix_decode_frame(), pnm_decode_frame(), predictor_calc_error(), ptx_decode_frame(), qcelp_decode_frame(), qdm2_decode_frame(), qdmc_decode_frame(), ra144_decode_frame(), ra288_decode_frame(), reget_buffer_internal(), rl2_decode_frame(), roq_encode_frame(), s302m_decode_frame(), sbc_decode_frame(), sga_decode_frame(), sgirle_decode_frame(), shorten_decode_frame(), sipr_decode_frame(), siren_decode(), smka_decode_frame(), submit_packet(), sunrast_decode_frame(), svc_decode_frame(), svq1_decode_frame(), svq1_encode_frame(), synth_superframe(), tdsc_decode_frame(), tgq_decode_frame(), tgv_decode_frame(), thread_get_buffer_internal(), tmv_decode_frame(), tqi_decode_frame(), truemotion2rt_decode_frame(), truespeech_decode_frame(), txd_decode_frame(), v308_decode_frame(), v408_decode_frame(), vcr1_decode_frame(), vmdaudio_decode_frame(), vmdvideo_decode_frame(), vorbis_decode_frame(), vpx_decode(), vqa_decode_frame(), wavesynth_decode(), wma_decode_superframe(), wmapro_decode_packet(), ws_snd_decode_frame(), xan_decode_frame(), xbm_decode_frame(), xface_decode_frame(), xma_decode_packet(), xpm_decode_frame(), xwd_decode_frame(), y216_decode_frame(), y41p_decode_frame(), yuv4_decode_frame(), zero12v_decode_frame(), and zerocodec_decode_frame().
int ff_reget_buffer | ( | AVCodecContext * | avctx, |
AVFrame * | frame, | ||
int | flags | ||
) |
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available.
Definition at line 2009 of file decode.c.
Referenced by aasc_decode_frame(), avs_decode_frame(), bethsoftvid_decode_frame(), cdg_decode_frame(), cdtoons_decode_frame(), cinepak_decode_frame(), cinvideo_decode_frame(), clv_decode_frame(), cpia_decode_frame(), decode_frame(), decode_frame_lscr(), fic_decode_frame(), flashsv_decode_frame(), flic_decode_frame_15_16BPP(), flic_decode_frame_24BPP(), flic_decode_frame_8BPP(), gif_decode_frame(), imx_decode_frame(), ir2_decode_frame(), mm_decode_frame(), mobiclip_decode(), mp_decode_frame(), msrle_decode_frame(), mss1_decode_frame(), mss2_decode_frame(), mss3_decode_frame(), mss4_decode_frame(), msvideo1_decode_frame(), paf_video_decode(), qtrle_decode_frame(), roq_decode_frame(), rpza_decode_stream(), rscc_decode_frame(), screenpresso_decode_frame(), seqvideo_decode_frame(), smc_decode_frame(), truemotion1_decode_frame(), tscc2_decode_frame(), ulti_decode_frame(), xan_decode_frame(), and yop_decode_frame().
int ff_thread_can_start_frame | ( | AVCodecContext * | avctx | ) |
Definition at line 922 of file pthread_frame.c.
Referenced by ff_mpv_frame_start(), and h264_frame_start().
int avpriv_h264_has_num_reorder_frames | ( | AVCodecContext * | avctx | ) |
Definition at line 61 of file h264dec.c.
Referenced by has_decode_delay_been_guessed().
Referenced by avi_read_packet(), avs2_probe(), avs3video_probe(), cavs_decode_frame(), cavsvideo_probe(), cbs_mpeg2_split_fragment(), decode_chunks(), extract_extradata_mpeg4(), extract_extradata_vc1(), ff_mpeg1_find_frame_end(), ff_mpeg4video_split(), ff_rtp_send_mpegvideo(), find_next_marker(), find_start_code(), h264_split(), hevc_split(), mpeg_decode_slice(), mpegts_write_packet_internal(), mpegvideo_extract_headers(), mpegvideo_probe(), mxf_parse_h264_frame(), scan_buffer(), slice_decode_thread(), and vc1_split().
Definition at line 497 of file utils.c.
Referenced by try_decode_frame().
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 105 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(), cri_decode_frame(), 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(), sga_decode_frame(), 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 120 of file utils.c.
Referenced by aom_decode(), decode_frame(), 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 135 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().
int ff_get_format | ( | AVCodecContext * | avctx, |
const enum AVPixelFormat * | fmt | ||
) |
Select the (possibly hardware accelerated) pixel format.
This is a wrapper around AVCodecContext.get_format() and should be used instead of calling get_format() directly.
The list of pixel formats must contain at least one valid entry, and is terminated with AV_PIX_FMT_NONE. If it is possible to decode to software, the last entry in the list must be the most accurate software format. If it is not possible to decode to software, AVCodecContext.sw_pix_fmt must be set before calling this function.
Definition at line 1323 of file decode.c.
Referenced by cuvid_decode_init(), decode_init(), ff_mediacodec_dec_init(), ff_mjpeg_decode_sof(), ff_thread_get_format(), ffmmal_init_decoder(), get_pixel_format(), h263_get_format(), qsv_decode_preinit(), submit_packet(), and vc1_decode_init().
AVCPBProperties* ff_add_cpb_side_data | ( | AVCodecContext * | avctx | ) |
Add a CPB properties side data to an encoding context.
Definition at line 2050 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().
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 2263 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 2327 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 2348 of file utils.c.
Referenced by prores_encode_frame().
void ff_dvdsub_parse_palette | ( | uint32_t * | palette, |
const char * | p | ||
) |
Definition at line 26 of file dvdsub.c.
Referenced by dvdsub_init(), and dvdsub_parse_extradata().
const uint8_t ff_log2_run[41] |
Definition at line 39 of file bitstream.c.
Referenced by decode_line_TMPL(), encode_line_TMPL(), ls_decode_line(), ls_encode_line(), and ls_encode_run().