#include "libavutil/frame.h"
#include "libavutil/hwcontext.h"
#include "avcodec.h"

Data Structures
struct	FrameDecodeData
	This struct stores per-frame lavc-internal data and is attached to it via private_ref. More...

Macros
#define	FF_REGET_BUFFER_FLAG_READONLY 1
	the returned buffer does not need to be writable More...

Functions
int	ff_decode_get_packet (AVCodecContext avctx, AVPacket pkt)
	Called by decoders to get the next packet for decoding. More...

int	ff_decode_frame_props_from_pkt (const AVCodecContext avctx, AVFrame frame, const AVPacket *pkt)
	Set various frame properties from the provided packet. More...

int	ff_decode_frame_props (AVCodecContext avctx, AVFrame frame)
	Set various frame properties from the codec context / packet data. More...

int	ff_decode_get_hw_frames_ctx (AVCodecContext *avctx, enum AVHWDeviceType dev_type)
	Make sure avctx.hw_frames_ctx is set. More...

int	ff_attach_decode_data (AVFrame *frame)

int	ff_copy_palette (void dst, const AVPacket src, void *logctx)
	Check whether the side-data of src contains a palette of size AVPALETTE_SIZE; if so, copy it to dst and return 1; else return 0. More...

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_get_format (AVCodecContext avctx, const enum AVPixelFormat fmt)
	Select the (possibly hardware accelerated) pixel format. 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_side_data_update_matrix_encoding (AVFrame *frame, enum AVMatrixEncoding matrix_encoding)
	Add or update AV_FRAME_DATA_MATRIXENCODING side data. More...

int	ff_hwaccel_frame_priv_alloc (AVCodecContext avctx, void *hwaccel_picture_private)
	Allocate a hwaccel frame private data if the provided avctx uses a hwaccel method that needs it. More...

const AVPacketSideData *	ff_get_coded_side_data (const AVCodecContext *avctx, enum AVPacketSideDataType type)
	Get side data of the given type from a decoding context. More...

int	ff_frame_new_side_data (const AVCodecContext avctx, AVFrame frame, enum AVFrameSideDataType type, size_t size, AVFrameSideData **sd)
	Wrapper around av_frame_new_side_data, which rejects side data overridden by the demuxer. More...

int	ff_frame_new_side_data_from_buf (const AVCodecContext avctx, AVFrame frame, enum AVFrameSideDataType type, AVBufferRef **buf)
	Similar to `ff_frame_new_side_data`, but using an existing buffer ref. More...

int	ff_frame_new_side_data_from_buf_ext (const AVCodecContext avctx, AVFrameSideData *sd, int nb_sd, enum AVFrameSideDataType type, AVBufferRef **buf)
	Same as `ff_frame_new_side_data_from_buf`, but taking a AVFrameSideData array directly instead of an AVFrame. More...

int	ff_decode_mastering_display_new (const AVCodecContext avctx, AVFrame frame, struct AVMasteringDisplayMetadata **mdm)
	Wrapper around av_mastering_display_metadata_create_side_data(), which rejects side data overridden by the demuxer. More...

int	ff_decode_mastering_display_new_ext (const AVCodecContext avctx, AVFrameSideData *sd, int nb_sd, struct AVMasteringDisplayMetadata **mdm)
	Same as `ff_decode_mastering_display_new`, but taking a AVFrameSideData array directly instead of an AVFrame. More...

int	ff_decode_content_light_new (const AVCodecContext avctx, AVFrame frame, struct AVContentLightMetadata **clm)
	Wrapper around av_content_light_metadata_create_side_data(), which rejects side data overridden by the demuxer. More...

int	ff_decode_content_light_new_ext (const AVCodecContext avctx, AVFrameSideData *sd, int nb_sd, struct AVContentLightMetadata **clm)
	Same as `ff_decode_content_light_new`, but taking a AVFrameSideData array directly instead of an AVFrame. More...

int	ff_decode_exif_attach_buffer (AVCodecContext avctx, AVFrame frame, AVBufferRef **buf, enum AVExifHeaderMode header_mode)
	Attach the data buffer to the frame. More...

int	ff_decode_exif_attach_ifd (AVCodecContext avctx, AVFrame frame, const struct AVExifMetadata *ifd)
	Attach an already-parsed EXIF metadata struct to the frame as a side data buffer. More...

Macro Definition Documentation

◆ FF_REGET_BUFFER_FLAG_READONLY

#define FF_REGET_BUFFER_FLAG_READONLY 1

the returned buffer does not need to be writable

Definition at line 128 of file decode.h.

Function Documentation

◆ ff_decode_get_packet()

int ff_decode_get_packet	(	AVCodecContext *	avctx,
		AVPacket *	pkt
	)

Called by decoders to get the next packet for decoding.

Parameters

pkt	An empty packet to be filled with data.

Returns: 0 if a new reference has been successfully written to pkt AVERROR(EAGAIN) if no data is currently available AVERROR_EOF if and end of stream has been reached, so no more data will be available

Definition at line 245 of file decode.c.

Referenced by amf_decode_frame(), apv_receive_frame(), av1_receive_frame(), binkaudio_receive_frame(), cuvid_output_frame(), decode_simple_internal(), ff_thread_receive_frame(), ffmmal_receive_frame(), hevc_receive_frame(), libdav1d_receive_frame_internal(), libjxl_receive_frame(), libxevd_receive_frame(), mediacodec_receive_frame(), oh_decode_receive_frame(), osq_receive_frame(), rkmpp_receive_frame(), and v4l2_receive_frame().

◆ ff_decode_frame_props_from_pkt()

int ff_decode_frame_props_from_pkt	(	const AVCodecContext *	avctx,
		AVFrame *	frame,
		const AVPacket *	pkt
	)

Set various frame properties from the provided packet.

Definition at line 1524 of file decode.c.

Referenced by ff_decode_frame_props(), libdav1d_receive_frame(), and libxevd_return_frame().

◆ ff_decode_frame_props()

int ff_decode_frame_props	(	AVCodecContext *	avctx,
		AVFrame *	frame
	)

Set various frame properties from the codec context / packet data.

Definition at line 1566 of file decode.c.

Referenced by amf_amfsurface_to_avframe(), cuvid_output_frame(), ff_get_buffer(), ff_h263_decode_frame(), ffmal_copy_frame(), libdav1d_receive_frame(), oh_decode_wrap_hw_buffer(), qsv_get_continuous_buffer(), qtrle_decode_frame(), raw_decode(), reget_buffer_internal(), vpx_decode(), and wrapped_avframe_decode().

◆ ff_decode_get_hw_frames_ctx()

int ff_decode_get_hw_frames_ctx	(	AVCodecContext *	avctx,
		enum AVHWDeviceType	dev_type
	)

Make sure avctx.hw_frames_ctx is set.

If it's not set, the function will try to allocate it from hw_device_ctx. If that is not possible, an error message is printed, and an error code is returned.

Definition at line 1043 of file decode.c.

Referenced by ff_d3d12va_decode_init(), ff_dxva2_decode_init(), ff_vaapi_decode_init(), ff_vdpau_common_init(), and ff_vk_decode_init().

◆ ff_attach_decode_data()

int ff_attach_decode_data ( AVFrame * frame )

Definition at line 1643 of file decode.c.

Referenced by amf_amfsurface_to_avframe(), ff_get_buffer(), ff_videotoolbox_alloc_frame(), and qsv_get_continuous_buffer().

◆ ff_copy_palette()

int ff_copy_palette	(	void *	dst,
		const AVPacket *	src,
		void *	logctx
	)

Check whether the side-data of src contains a palette of size AVPALETTE_SIZE; if so, copy it to dst and return 1; else return 0.

Also emit an error message upon encountering a palette with invalid size.

Definition at line 2251 of file decode.c.

Referenced by cinepak_decode_frame(), decode_frame(), gdv_decode_frame(), idcin_decode_frame(), imx_decode_frame(), ipvideo_decode_frame(), msrle_decode_frame(), msvideo1_decode_frame(), qtrle_decode_frame(), raw_decode(), rscc_decode_frame(), and smc_decode_frame().

◆ ff_set_dimensions()

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 91 of file utils.c.

Referenced by alloc_buffers(), aom_decode(), apply_param_change(), apv_decode_check_format(), 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(), gem_decode_frame(), get_siz(), gif_decode_frame(), h261_decode_frame(), hdr_decode_frame(), hqa_decode_frame(), init_image(), libdav1d_parse_extradata(), libdav1d_receive_frame(), libjxl_receive_frame(), librsvg_decode_frame(), libuavs3d_on_seq_header(), libxevd_image_copy(), magy_decode_frame(), mediacodec_dec_parse_video_format(), mimic_decode_frame(), mpeg4_decode_header(), mpeg_decode_postinit(), mpegvideo_extract_headers(), mvc_decode_init(), oh_decode_on_stream_changed(), parse_presentation_segment(), pcx_decode_frame(), pgx_decode_frame(), photocd_decode_frame(), pix_decode_frame(), pixlet_decode_frame(), process_frame_obj(), ptx_decode_frame(), qoi_decode_frame(), 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_extradata(), 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_dimensions_clear_info(), update_size(), v4l2_handle_event(), vbn_decode_frame(), vp56_size_changed(), vp5_parse_header(), vp6_parse_header(), vp8_lossless_decode_frame(), vpx_decode(), vqa_decode_init(), wbmp_decode_frame(), xbm_decode_frame(), xpm_decode_frame(), and xwd_decode_frame().

◆ ff_set_sar()

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 106 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_video_format(), oh_decode_on_stream_changed(), sps_vui(), truemotion1_decode_header(), and update_context_with_frame_header().

◆ ff_get_format()

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 1203 of file decode.c.

Referenced by cuvid_decode_init(), decode_frame_header(), ff_mjpeg_decode_sof(), ffmmal_init_decoder(), get_format(), get_pixel_format(), h263_get_format(), mediacodec_dec_get_video_codec(), mpeg_get_pixelformat(), qsv_decode_preinit(), update_size(), and vc1_get_format().

◆ ff_get_buffer()

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 1720 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(), apac_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(), bmp_decode_frame(), bmv_aud_decode_frame(), bonk_decode(), cdg_decode_frame(), cdxl_decode_frame(), cinaudio_decode_frame(), cmv_decode_frame(), cng_decode_frame(), cook_decode_frame(), copy_output(), cuvid_output_frame(), cyuv_decode_frame(), dds_decode(), decode_frame(), decode_pic(), decode_tag(), dfa_decode_frame(), dfpwm_dec_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_ivi_decode_frame(), ff_mjpeg_decode_sof(), ff_thread_get_buffer(), ff_thread_get_ext_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(), frame_configure_elements(), ftr_decode_frame(), g2m_decode_frame(), g722_decode_frame(), g723_1_decode_frame(), g728_decode_frame(), gdv_decode_frame(), gem_decode_frame(), get_buffer(), get_buffer_with_edge(), 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(), lead_decode_frame(), libcelt_dec_decode(), libcodec2_decode(), libgsm_decode_frame(), libjxl_receive_frame(), liblc3_decode(), libopus_decode(), librsvg_decode_frame(), libspeex_decode_frame(), libuavs3d_decode_frame(), libxevd_image_copy(), m101_decode_frame(), mace_decode_frame(), mediacodec_wrap_sw_audio_buffer(), mediacodec_wrap_sw_video_buffer(), misc4_decode(), mp_decode_frame(), mpc7_decode_frame(), mpc8_decode_frame(), msp2_decode_frame(), mss2_decode_frame(), mvc_decode_frame(), mxpeg_decode_frame(), oggvorbis_decode_frame(), oh_decode_wrap_sw_buffer(), on2avc_decode_frame(), opus_decode_packet(), osq_receive_frame(), 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(), ptx_decode_frame(), qcelp_decode_frame(), qdm2_decode_frame(), qdmc_decode_frame(), qoa_decode_frame(), ra144_decode_frame(), ra288_decode_frame(), reget_buffer_internal(), rka_decode_frame(), rl2_decode_frame(), rv60_decode_frame(), s302m_decode_frame(), sbc_decode_frame(), sga_decode_frame(), sgirle_decode_frame(), shorten_decode_frame(), sipr_decode_frame(), siren_decode(), smka_decode_frame(), speex_decode_frame(), sunrast_decode_frame(), svc_decode_frame(), svq1_decode_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(), vbn_decode_frame(), vcr1_decode_frame(), vmdaudio_decode_frame(), vmdvideo_decode_frame(), vorbis_decode_frame(), vpx_decode(), wavarc_decode(), 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().

◆ ff_reget_buffer()

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 1840 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_1BPP(), 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(), vqa_decode_frame(), vqc_decode_frame(), xan_decode_frame(), and yop_decode_frame().

◆ ff_side_data_update_matrix_encoding()

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 121 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().

◆ ff_hwaccel_frame_priv_alloc()

int ff_hwaccel_frame_priv_alloc	(	AVCodecContext *	avctx,
		void **	hwaccel_picture_private
	)

Allocate a hwaccel frame private data if the provided avctx uses a hwaccel method that needs it.

The returned data is a RefStruct reference (if allocated).

Parameters

avctx	The codec context
hwaccel_picture_private	Pointer to return hwaccel_picture_private

Returns: 0 on success, < 0 on error

Definition at line 2266 of file decode.c.

Referenced by alloc_frame(), alloc_picture(), av1_frame_alloc(), decode_frame(), vp8_alloc_frame(), and vp9_frame_alloc().

◆ ff_get_coded_side_data()

const AVPacketSideData* ff_get_coded_side_data	(	const AVCodecContext *	avctx,
		enum AVPacketSideDataType	type
	)

Get side data of the given type from a decoding context.

Definition at line 1352 of file decode.c.

Referenced by av1_decode_init(), hevc_decode_init(), and libdav1d_init().

◆ ff_frame_new_side_data()

int ff_frame_new_side_data	(	const AVCodecContext *	avctx,
		AVFrame *	frame,
		enum AVFrameSideDataType	type,
		size_t	size,
		AVFrameSideData **	sd
	)

Wrapper around av_frame_new_side_data, which rejects side data overridden by the demuxer.

Returns 0 on success, and a negative error code otherwise. If successful and sd is not NULL, *sd may either contain a pointer to the new side data, or NULL in case the side data was already present.

Definition at line 2114 of file decode.c.

Referenced by attach_displaymatrix(), cri_decode_frame(), decode_frame(), ff_mjpeg_decode_frame_from_buf(), h264_export_frame_props(), mpeg_field_start(), populate_avctx_color_fields(), set_side_data(), tiff_decode_tag(), and webp_decode_frame().

◆ ff_frame_new_side_data_from_buf()

int ff_frame_new_side_data_from_buf	(	const AVCodecContext *	avctx,
		AVFrame *	frame,
		enum AVFrameSideDataType	type,
		AVBufferRef **	buf
	)

Similar to ff_frame_new_side_data, but using an existing buffer ref.

*buf is ALWAYS consumed by this function and NULL written in its place, even on failure.

Definition at line 2152 of file decode.c.

Referenced by alloc_frame(), alloc_picture(), exif_attach_ifd(), export_itut_t35(), ff_h2645_sei_to_frame(), libjxl_receive_frame(), mpeg_field_start(), parse_itut_t35_metadata(), and set_side_data().

◆ ff_frame_new_side_data_from_buf_ext()

int ff_frame_new_side_data_from_buf_ext	(	const AVCodecContext *	avctx,
		AVFrameSideData ***	sd,
		int *	nb_sd,
		enum AVFrameSideDataType	type,
		AVBufferRef **	buf
	)

Same as ff_frame_new_side_data_from_buf, but taking a AVFrameSideData array directly instead of an AVFrame.

Definition at line 2133 of file decode.c.

Referenced by ff_frame_new_side_data_from_buf(), h2645_sei_to_side_data(), and hevc_sei_to_context().

◆ ff_decode_mastering_display_new()

int ff_decode_mastering_display_new	(	const AVCodecContext *	avctx,
		AVFrame *	frame,
		struct AVMasteringDisplayMetadata **	mdm
	)

Wrapper around av_mastering_display_metadata_create_side_data(), which rejects side data overridden by the demuxer.

Returns 0 on success, and a negative error code otherwise. If successful, *mdm may either be a pointer to the new side data, or NULL in case the side data was already present.

Definition at line 2193 of file decode.c.

Referenced by apv_decode_metadata(), export_metadata(), libdav1d_receive_frame(), and populate_avctx_color_fields().

◆ ff_decode_mastering_display_new_ext()

int ff_decode_mastering_display_new_ext	(	const AVCodecContext *	avctx,
		AVFrameSideData ***	sd,
		int *	nb_sd,
		struct AVMasteringDisplayMetadata **	mdm
	)

Same as ff_decode_mastering_display_new, but taking a AVFrameSideData array directly instead of an AVFrame.

Definition at line 2161 of file decode.c.

Referenced by h2645_sei_to_side_data().

◆ ff_decode_content_light_new()

int ff_decode_content_light_new	(	const AVCodecContext *	avctx,
		AVFrame *	frame,
		struct AVContentLightMetadata **	clm
	)

Wrapper around av_content_light_metadata_create_side_data(), which rejects side data overridden by the demuxer.

Returns 0 on success, and a negative error code otherwise. If successful, *clm may either be a pointer to the new side data, or NULL in case the side data was already present.

Definition at line 2238 of file decode.c.

Referenced by apv_decode_metadata(), export_metadata(), libdav1d_receive_frame(), and populate_avctx_color_fields().

◆ ff_decode_content_light_new_ext()

int ff_decode_content_light_new_ext	(	const AVCodecContext *	avctx,
		AVFrameSideData ***	sd,
		int *	nb_sd,
		struct AVContentLightMetadata **	clm
	)

Same as ff_decode_content_light_new, but taking a AVFrameSideData array directly instead of an AVFrame.

Definition at line 2206 of file decode.c.

Referenced by h2645_sei_to_side_data().

◆ ff_decode_exif_attach_buffer()

int ff_decode_exif_attach_buffer	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		AVBufferRef **	buf,
		enum AVExifHeaderMode	header_mode
	)

Attach the data buffer to the frame.

This is mostly a wrapper for av_side_data_new_from_buffer, but it checks if the orientation tag is present in the provided EXIF buffer. If it is, it zeroes it out and attaches that information as an AV_FRAME_DATA_DISPLAYMATRIX instead of including it in the AV_FRAME_DATA_EXIF side data buffer.

*buf is ALWAYS consumed by this function and NULL written in its place, even on failure.

Definition at line 2416 of file decode.c.

Referenced by decode_frame_common(), and webp_decode_frame().

◆ ff_decode_exif_attach_ifd()

int ff_decode_exif_attach_ifd	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		const struct AVExifMetadata *	ifd
	)

Attach an already-parsed EXIF metadata struct to the frame as a side data buffer.

It writes the EXIF IFD into the buffer and attaches the buffer to the frame.

If the metadata struct contains an orientation tag, it will be zeroed before writing, and instead, an AV_FRAME_DATA_DISPLAYMATRIX will be attached in addition to the AV_FRAME_DATA_EXIF side data.

Data Structures

Macros

Functions

Macro Definition Documentation

◆ FF_REGET_BUFFER_FLAG_READONLY

Function Documentation

◆ ff_decode_get_packet()

◆ ff_decode_frame_props_from_pkt()

◆ ff_decode_frame_props()

◆ ff_decode_get_hw_frames_ctx()

◆ ff_attach_decode_data()

◆ ff_copy_palette()

◆ ff_set_dimensions()

◆ ff_set_sar()

◆ ff_get_format()

◆ ff_get_buffer()

◆ ff_reget_buffer()

◆ ff_side_data_update_matrix_encoding()

◆ ff_hwaccel_frame_priv_alloc()

◆ ff_get_coded_side_data()

◆ ff_frame_new_side_data()

◆ ff_frame_new_side_data_from_buf()

◆ ff_frame_new_side_data_from_buf_ext()

◆ ff_decode_mastering_display_new()

◆ ff_decode_mastering_display_new_ext()

◆ ff_decode_content_light_new()

◆ ff_decode_content_light_new_ext()

◆ ff_decode_exif_attach_buffer()

◆ ff_decode_exif_attach_ifd()