FFmpeg
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#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "config.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/emms.h"
#include "libavutil/frame.h"
#include "libavutil/hwcontext.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/mem.h"
#include "libavutil/stereo3d.h"
#include "avcodec.h"
#include "avcodec_internal.h"
#include "bytestream.h"
#include "bsf.h"
#include "codec_desc.h"
#include "codec_internal.h"
#include "decode.h"
#include "hwaccel_internal.h"
#include "hwconfig.h"
#include "internal.h"
#include "lcevcdec.h"
#include "packet_internal.h"
#include "progressframe.h"
#include "libavutil/refstruct.h"
#include "thread.h"
#include "threadprogress.h"
Go to the source code of this file.
Data Structures | |
struct | DecodeContext |
struct | ProgressInternal |
Macros | |
#define | ff_thread_get_packet(avctx, pkt) (AVERROR_BUG) |
#define | ff_thread_receive_frame(avctx, frame) (AVERROR_BUG) |
#define | UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ |
Functions | |
static DecodeContext * | decode_ctx (AVCodecInternal *avci) |
static int | apply_param_change (AVCodecContext *avctx, const AVPacket *avpkt) |
static int | extract_packet_props (AVCodecInternal *avci, const AVPacket *pkt) |
static int | decode_bsfs_init (AVCodecContext *avctx) |
static int | decode_get_packet (AVCodecContext *avctx, AVPacket *pkt) |
int | ff_decode_get_packet (AVCodecContext *avctx, AVPacket *pkt) |
Called by decoders to get the next packet for decoding. More... | |
static int64_t | guess_correct_pts (DecodeContext *dc, int64_t reordered_pts, int64_t dts) |
Attempt to guess proper monotonic timestamps for decoded video frames which might have incorrect times. More... | |
static int | discard_samples (AVCodecContext *avctx, AVFrame *frame, int64_t *discarded_samples) |
static int | decode_simple_internal (AVCodecContext *avctx, AVFrame *frame, int64_t *discarded_samples) |
static int | detect_colorspace (av_unused AVCodecContext *c, av_unused AVFrame *f) |
static int | fill_frame_props (const AVCodecContext *avctx, AVFrame *frame) |
static int | decode_simple_receive_frame (AVCodecContext *avctx, AVFrame *frame) |
int | ff_decode_receive_frame_internal (AVCodecContext *avctx, AVFrame *frame) |
Do the actual decoding and obtain a decoded frame from the decoder, if available. More... | |
static int | decode_receive_frame_internal (AVCodecContext *avctx, AVFrame *frame) |
int attribute_align_arg | avcodec_send_packet (AVCodecContext *avctx, const AVPacket *avpkt) |
Supply raw packet data as input to a decoder. More... | |
static int | apply_cropping (AVCodecContext *avctx, AVFrame *frame) |
static int | frame_validate (AVCodecContext *avctx, AVFrame *frame) |
int | ff_decode_receive_frame (AVCodecContext *avctx, AVFrame *frame) |
avcodec_receive_frame() implementation for decoders. More... | |
static void | get_subtitle_defaults (AVSubtitle *sub) |
static int | recode_subtitle (AVCodecContext *avctx, const AVPacket **outpkt, const AVPacket *inpkt, AVPacket *buf_pkt) |
static int | utf8_check (const uint8_t *str) |
int | avcodec_decode_subtitle2 (AVCodecContext *avctx, AVSubtitle *sub, int *got_sub_ptr, const AVPacket *avpkt) |
Decode a subtitle message. More... | |
enum AVPixelFormat | avcodec_default_get_format (struct AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
int | ff_decode_get_hw_frames_ctx (AVCodecContext *avctx, enum AVHWDeviceType dev_type) |
Make sure avctx.hw_frames_ctx is set. More... | |
int | avcodec_get_hw_frames_parameters (AVCodecContext *avctx, AVBufferRef *device_ref, enum AVPixelFormat hw_pix_fmt, AVBufferRef **out_frames_ref) |
Create and return a AVHWFramesContext with values adequate for hardware decoding. More... | |
static int | hwaccel_init (AVCodecContext *avctx, const FFHWAccel *hwaccel) |
void | ff_hwaccel_uninit (AVCodecContext *avctx) |
int | ff_get_format (AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
Select the (possibly hardware accelerated) pixel format. More... | |
static const AVPacketSideData * | packet_side_data_get (const AVPacketSideData *sd, int nb_sd, enum AVPacketSideDataType type) |
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... | |
static int | side_data_stereo3d_merge (AVFrameSideData *sd_frame, const AVPacketSideData *sd_pkt) |
static int | side_data_map (AVFrame *dst, const AVPacketSideData *sd_src, int nb_sd_src, const SideDataMap *map) |
static int | add_metadata_from_side_data (const AVPacket *avpkt, AVFrame *frame) |
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... | |
static void | validate_avframe_allocation (AVCodecContext *avctx, AVFrame *frame) |
static void | decode_data_free (void *opaque, uint8_t *data) |
int | ff_attach_decode_data (AVFrame *frame) |
static void | update_frame_props (AVCodecContext *avctx, AVFrame *frame) |
static void | attach_post_process_data (AVCodecContext *avctx, AVFrame *frame) |
int | ff_get_buffer (AVCodecContext *avctx, AVFrame *frame, int flags) |
Get a buffer for a frame. More... | |
static int | reget_buffer_internal (AVCodecContext *avctx, AVFrame *frame, int flags) |
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... | |
static void | check_progress_consistency (const ProgressFrame *f) |
int | ff_progress_frame_alloc (AVCodecContext *avctx, ProgressFrame *f) |
This function allocates ProgressFrame.f May be called before ff_progress_frame_get_buffer() in the cases where the AVFrame needs to be accessed before the ff_thread_get_buffer() call in ff_progress_frame_alloc(). More... | |
int | ff_progress_frame_get_buffer (AVCodecContext *avctx, ProgressFrame *f, int flags) |
This function sets up the ProgressFrame, i.e. More... | |
void | ff_progress_frame_ref (ProgressFrame *dst, const ProgressFrame *src) |
Set dst->f to src->f and make dst a co-owner of src->f. More... | |
void | ff_progress_frame_unref (ProgressFrame *f) |
Give up a reference to the underlying frame contained in a ProgressFrame and reset the ProgressFrame, setting all pointers to NULL. More... | |
void | ff_progress_frame_replace (ProgressFrame *dst, const ProgressFrame *src) |
Do nothing if dst and src already refer to the same AVFrame; otherwise unreference dst and if src is not blank, put a reference to src's AVFrame in its place (in case src is not blank). More... | |
void | ff_progress_frame_report (ProgressFrame *f, int n) |
Notify later decoding threads when part of their reference frame is ready. More... | |
void | ff_progress_frame_await (const ProgressFrame *f, int n) |
Wait for earlier decoding threads to finish reference frames. More... | |
enum ThreadingStatus | ff_thread_sync_ref (AVCodecContext *avctx, size_t offset) |
Allows to synchronize objects whose lifetime is the whole decoding process among all frame threads. More... | |
static av_cold int | progress_frame_pool_init_cb (AVRefStructOpaque opaque, void *obj) |
static void | progress_frame_pool_reset_cb (AVRefStructOpaque unused, void *obj) |
static av_cold void | progress_frame_pool_free_entry_cb (AVRefStructOpaque opaque, void *obj) |
int | ff_decode_preinit (AVCodecContext *avctx) |
Perform decoder initialization and validation. More... | |
static int | side_data_pref (const AVCodecContext *avctx, AVFrameSideData ***sd, int *nb_sd, enum AVFrameSideDataType type) |
Check side data preference and clear existing side data from frame if needed. More... | |
int | ff_frame_new_side_data (const AVCodecContext *avctx, AVFrame *frame, enum AVFrameSideDataType type, size_t size, AVFrameSideData **psd) |
Wrapper around av_frame_new_side_data, which rejects side data overridden by the demuxer. 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_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_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_mastering_display_new (const AVCodecContext *avctx, AVFrame *frame, AVMasteringDisplayMetadata **mdm) |
Wrapper around av_mastering_display_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, AVContentLightMetadata **clm) |
Same as ff_decode_content_light_new , but taking a AVFrameSideData array directly instead of an AVFrame. More... | |
int | ff_decode_content_light_new (const AVCodecContext *avctx, AVFrame *frame, AVContentLightMetadata **clm) |
Wrapper around av_content_light_metadata_create_side_data(), which rejects side data overridden by the demuxer. More... | |
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_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... | |
void | ff_decode_flush_buffers (AVCodecContext *avctx) |
AVCodecInternal * | ff_decode_internal_alloc (void) |
void | ff_decode_internal_sync (AVCodecContext *dst, const AVCodecContext *src) |
void | ff_decode_internal_uninit (AVCodecContext *avctx) |
#define ff_thread_get_packet | ( | avctx, | |
pkt | |||
) | (AVERROR_BUG) |
#define ff_thread_receive_frame | ( | avctx, | |
frame | |||
) | (AVERROR_BUG) |
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Definition at line 102 of file decode.c.
Referenced by attach_post_process_data(), avcodec_send_packet(), decode_receive_frame_internal(), decode_simple_internal(), ff_decode_flush_buffers(), ff_decode_get_packet(), ff_decode_internal_sync(), ff_decode_internal_uninit(), ff_decode_preinit(), ff_decode_receive_frame_internal(), side_data_pref(), and update_frame_props().
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Definition at line 107 of file decode.c.
Referenced by decode_get_packet().
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Definition at line 168 of file decode.c.
Referenced by decode_get_packet().
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Definition at line 183 of file decode.c.
Referenced by ff_decode_preinit().
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Definition at line 223 of file decode.c.
Referenced by ff_decode_get_packet().
int ff_decode_get_packet | ( | AVCodecContext * | avctx, |
AVPacket * | pkt | ||
) |
Called by decoders to get the next packet for decoding.
pkt | An empty packet to be filled with data. |
Definition at line 248 of file decode.c.
Referenced by 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(), osq_receive_frame(), rkmpp_receive_frame(), and v4l2_receive_frame().
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Attempt to guess proper monotonic timestamps for decoded video frames which might have incorrect times.
Input timestamps may wrap around, in which case the output will as well.
pts | the pts field of the decoded AVPacket, as passed through AVFrame.pts |
dts | the dts field of the decoded AVPacket |
Definition at line 290 of file decode.c.
Referenced by decode_receive_frame_internal().
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Definition at line 316 of file decode.c.
Referenced by decode_simple_internal(), and ff_decode_receive_frame_internal().
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Definition at line 414 of file decode.c.
Referenced by decode_simple_receive_frame().
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Definition at line 566 of file decode.c.
Referenced by decode_receive_frame_internal().
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Definition at line 572 of file decode.c.
Referenced by decode_receive_frame_internal(), and ff_decode_frame_props().
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Definition at line 605 of file decode.c.
Referenced by ff_decode_receive_frame_internal().
int ff_decode_receive_frame_internal | ( | struct AVCodecContext * | avctx, |
AVFrame * | frame | ||
) |
Do the actual decoding and obtain a decoded frame from the decoder, if available.
When frame threading is used, this is invoked by the worker threads, otherwise by the top layer directly.
Definition at line 621 of file decode.c.
Referenced by decode_receive_frame_internal(), and frame_worker_thread().
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Definition at line 657 of file decode.c.
Referenced by avcodec_send_packet(), and ff_decode_receive_frame().
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Definition at line 761 of file decode.c.
Referenced by ff_decode_receive_frame(), and ist_add().
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Definition at line 789 of file decode.c.
Referenced by ff_decode_receive_frame().
int ff_decode_receive_frame | ( | AVCodecContext * | avctx, |
AVFrame * | frame | ||
) |
avcodec_receive_frame() implementation for decoders.
Definition at line 815 of file decode.c.
Referenced by avcodec_receive_frame().
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Definition at line 896 of file decode.c.
Referenced by avcodec_decode_subtitle2().
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Definition at line 903 of file decode.c.
Referenced by avcodec_decode_subtitle2().
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Definition at line 964 of file decode.c.
Referenced by avcodec_decode_subtitle2().
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 1117 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().
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Definition at line 1230 of file decode.c.
Referenced by ff_get_format().
void ff_hwaccel_uninit | ( | AVCodecContext * | avctx | ) |
Definition at line 1265 of file decode.c.
Referenced by ff_codec_close(), ff_frame_thread_free(), ff_get_format(), and update_context_from_thread().
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 1277 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().
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Definition at line 1416 of file decode.c.
Referenced by ff_get_coded_side_data(), and side_data_map().
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 1426 of file decode.c.
Referenced by av1_decode_init(), hevc_decode_init(), and libdav1d_init().
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Definition at line 1432 of file decode.c.
Referenced by side_data_map().
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Definition at line 1468 of file decode.c.
Referenced by ff_decode_frame_props(), and ff_decode_frame_props_from_pkt().
Definition at line 1504 of file decode.c.
Referenced by 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 1516 of file decode.c.
Referenced by ff_decode_frame_props(), libdav1d_receive_frame(), and libxevd_return_frame().
int ff_decode_frame_props | ( | AVCodecContext * | avctx, |
AVFrame * | frame | ||
) |
Set various frame properties from the codec context / packet data.
Definition at line 1564 of file decode.c.
Referenced by cuvid_output_frame(), ff_get_buffer(), ff_h263_decode_frame(), ffmal_copy_frame(), libdav1d_receive_frame(), qsv_get_continuous_buffer(), qtrle_decode_frame(), raw_decode(), reget_buffer_internal(), vpx_decode(), and wrapped_avframe_decode().
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Definition at line 1605 of file decode.c.
Referenced by ff_get_buffer().
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Definition at line 1626 of file decode.c.
Referenced by ff_attach_decode_data().
int ff_attach_decode_data | ( | AVFrame * | frame | ) |
Definition at line 1639 of file decode.c.
Referenced by ff_get_buffer(), ff_videotoolbox_alloc_frame(), and qsv_get_continuous_buffer().
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Definition at line 1663 of file decode.c.
Referenced by ff_get_buffer().
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Definition at line 1679 of file decode.c.
Referenced by 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 1697 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(), 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(), 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().
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Definition at line 1773 of file decode.c.
Referenced by 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 1815 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().
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Definition at line 1828 of file decode.c.
Referenced by ff_progress_frame_get_buffer(), ff_progress_frame_replace(), and ff_progress_frame_unref().
int ff_progress_frame_alloc | ( | struct AVCodecContext * | avctx, |
ProgressFrame * | f | ||
) |
This function allocates ProgressFrame.f May be called before ff_progress_frame_get_buffer() in the cases where the AVFrame needs to be accessed before the ff_thread_get_buffer() call in ff_progress_frame_alloc().
Definition at line 1834 of file decode.c.
Referenced by alloc_frame(), and ff_progress_frame_get_buffer().
int ff_progress_frame_get_buffer | ( | struct AVCodecContext * | avctx, |
ProgressFrame * | f, | ||
int | flags | ||
) |
This function sets up the ProgressFrame, i.e.
allocates ProgressFrame.f if needed, and also calls ff_thread_get_buffer() on the frame.
Definition at line 1848 of file decode.c.
Referenced by alloc_frame(), av1_frame_alloc(), decode_frame(), decode_idat_chunk(), mimic_decode_frame(), vp8_alloc_frame(), and vp9_frame_alloc().
void ff_progress_frame_ref | ( | ProgressFrame * | dst, |
const ProgressFrame * | src | ||
) |
Set dst->f to src->f and make dst a co-owner of src->f.
dst can then be used to wait on progress of the underlying frame.
Definition at line 1868 of file decode.c.
Referenced by ff_progress_frame_replace(), and hevc_ref_frame().
void ff_progress_frame_unref | ( | ProgressFrame * | f | ) |
Give up a reference to the underlying frame contained in a ProgressFrame and reset the ProgressFrame, setting all pointers to NULL.
Definition at line 1876 of file decode.c.
Referenced by av1_frame_unref(), decode_frame(), decode_idat_chunk(), ff_hevc_unref_frame(), ff_progress_frame_replace(), ffv1_decode_close(), mimic_decode_end(), mimic_decode_frame(), png_dec_end(), update_frames(), vp3_decode_flush(), vp8_alloc_frame(), vp8_release_frame(), vp9_decode_flush(), vp9_decode_free(), and vp9_frame_unref().
void ff_progress_frame_replace | ( | ProgressFrame * | dst, |
const ProgressFrame * | src | ||
) |
Do nothing if dst and src already refer to the same AVFrame; otherwise unreference dst and if src is not blank, put a reference to src's AVFrame in its place (in case src is not blank).
Definition at line 1883 of file decode.c.
Referenced by av1_frame_replace(), update_frames(), vp9_decode_frame(), and vp9_frame_replace().
void ff_progress_frame_report | ( | ProgressFrame * | f, |
int | progress | ||
) |
Notify later decoding threads when part of their reference frame is ready.
Call this when some part of the frame is finished decoding. Later calls with lower values of progress have no effect.
f | The frame being decoded. |
progress | Value, in arbitrary units, of how much of the frame has decoded. |
Definition at line 1893 of file decode.c.
Referenced by decode(), decode_frame(), decode_frame_common(), decode_nal_units(), decode_slice(), decode_tiles(), ff_hevc_hls_filter(), generate_missing_ref(), mimic_decode_frame(), vp3_draw_horiz_band(), vp78_decode_frame(), vp78_decode_mb_row_sliced(), and vp9_decode_frame().
void ff_progress_frame_await | ( | const ProgressFrame * | f, |
int | progress | ||
) |
Wait for earlier decoding threads to finish reference frames.
Call this before accessing some part of a frame, with a given value for progress, and it will return after the responsible decoding thread calls ff_thread_progress_report() with the same or higher value for progress.
f | The frame being referenced. |
progress | Value, in arbitrary units, to wait for. |
enum ThreadingStatus ff_thread_sync_ref | ( | AVCodecContext * | avctx, |
size_t | offset | ||
) |
Allows to synchronize objects whose lifetime is the whole decoding process among all frame threads.
When called from a non-copy thread, do nothing. When called from another thread, place a new RefStruct reference at the given offset in the calling thread's private data from the RefStruct reference in the private data of the first decoding thread. The first thread must have a valid RefStruct reference at the given offset in its private data; the calling thread must not have a reference at this offset in its private data (must be NULL).
avctx | an AVCodecContext |
offset | offset of the RefStruct reference in avctx's private data |
FF_THREAD_IS_COPY | if frame-threading is in use and the calling thread is a copy; in this case, the RefStruct reference will be set. |
FF_THREAD_IS_MAIN_THREAD | if frame-threading is in use and the calling thread is the main thread. |
FF_THREAD_NO_FRAME_THREADING | if frame-threading is not in use. |
Definition at line 1904 of file decode.c.
Referenced by ff_mpv_decode_init(), and wavpack_decode_init().
|
static |
Definition at line 1910 of file decode.c.
Referenced by ff_decode_preinit().
|
static |
Definition at line 1927 of file decode.c.
Referenced by ff_decode_preinit().
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static |
Definition at line 1935 of file decode.c.
Referenced by ff_decode_preinit().
int ff_decode_preinit | ( | struct AVCodecContext * | avctx | ) |
Perform decoder initialization and validation.
Called when opening the decoder, before the FFCodec.init() call.
Definition at line 1943 of file decode.c.
Referenced by avcodec_open2().
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static |
Check side data preference and clear existing side data from frame if needed.
0 | side data of this type can be added to frame |
1 | side data of this type should not be added to frame |
Definition at line 2083 of file decode.c.
Referenced by ff_decode_content_light_new(), ff_decode_content_light_new_ext(), ff_decode_mastering_display_new(), ff_decode_mastering_display_new_ext(), ff_frame_new_side_data(), and ff_frame_new_side_data_from_buf_ext().
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 2099 of file decode.c.
Referenced by 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().
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 2118 of file decode.c.
Referenced by ff_frame_new_side_data_from_buf(), and h2645_sei_to_side_data().
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 2137 of file decode.c.
Referenced by alloc_frame(), export_itut_t35(), ff_h2645_sei_to_frame(), libdav1d_receive_frame(), libjxl_receive_frame(), mpeg_field_start(), and set_side_data().
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 2146 of file decode.c.
Referenced by h2645_sei_to_side_data().
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 2178 of file decode.c.
Referenced by export_metadata(), libdav1d_receive_frame(), and populate_avctx_color_fields().
int ff_decode_content_light_new_ext | ( | const AVCodecContext * | avctx, |
AVFrameSideData *** | sd, | ||
int * | nb_sd, | ||
AVContentLightMetadata ** | clm | ||
) |
Same as ff_decode_content_light_new
, but taking a AVFrameSideData array directly instead of an AVFrame.
Definition at line 2191 of file decode.c.
Referenced by h2645_sei_to_side_data().
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 2223 of file decode.c.
Referenced by export_metadata(), libdav1d_receive_frame(), and populate_avctx_color_fields().
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 2236 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().
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).
avctx | The codec context |
hwaccel_picture_private | Pointer to return hwaccel_picture_private |
Definition at line 2251 of file decode.c.
Referenced by alloc_frame(), alloc_picture(), av1_frame_alloc(), vp8_alloc_frame(), and vp9_frame_alloc().
void ff_decode_flush_buffers | ( | AVCodecContext * | avctx | ) |
Definition at line 2280 of file decode.c.
Referenced by avcodec_flush_buffers().
AVCodecInternal* ff_decode_internal_alloc | ( | void | ) |
Definition at line 2298 of file decode.c.
Referenced by avcodec_open2(), and init_thread().
void ff_decode_internal_sync | ( | AVCodecContext * | dst, |
const AVCodecContext * | src | ||
) |
void ff_decode_internal_uninit | ( | AVCodecContext * | avctx | ) |
Definition at line 2311 of file decode.c.
Referenced by ff_codec_close(), and ff_frame_thread_free().