mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
d0c8ca961d
Some encoders (ffv1, flac, adx) are marked with AV_CODEC_CAP_DELAY onky in order to be flushed at the end, otherwise they behave as no-delay encoders. Add a capability to mark these encoders. Use it for setting pts generically.
331 lines
12 KiB
C
331 lines
12 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_CODEC_INTERNAL_H
|
|
#define AVCODEC_CODEC_INTERNAL_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/attributes.h"
|
|
#include "codec.h"
|
|
#include "config.h"
|
|
|
|
/**
|
|
* The codec is not known to be init-threadsafe (i.e. it might be unsafe
|
|
* to initialize this codec and another codec concurrently, typically because
|
|
* the codec calls external APIs that are not known to be thread-safe).
|
|
* Therefore calling the codec's init function needs to be guarded with a lock.
|
|
*/
|
|
#define FF_CODEC_CAP_NOT_INIT_THREADSAFE (1 << 0)
|
|
/**
|
|
* 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.
|
|
*/
|
|
#define FF_CODEC_CAP_INIT_CLEANUP (1 << 1)
|
|
/**
|
|
* Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set
|
|
* AVFrame.pkt_dts manually. If the flag is set, decode.c won't overwrite
|
|
* this field. If it's unset, decode.c tries to guess the pkt_dts field
|
|
* from the input AVPacket.
|
|
*/
|
|
#define FF_CODEC_CAP_SETS_PKT_DTS (1 << 2)
|
|
/**
|
|
* The decoder extracts and fills its parameters even if the frame is
|
|
* skipped due to the skip_frame setting.
|
|
*/
|
|
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM (1 << 3)
|
|
/**
|
|
* The decoder sets the cropping fields in the output frames manually.
|
|
* If this cap is set, the generic code will initialize output frame
|
|
* dimensions to coded rather than display values.
|
|
*/
|
|
#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 4)
|
|
/**
|
|
* Codec initializes slice-based threading with a main function
|
|
*/
|
|
#define FF_CODEC_CAP_SLICE_THREAD_HAS_MF (1 << 5)
|
|
/*
|
|
* The codec supports frame threading and has inter-frame dependencies, so it
|
|
* uses ff_thread_report/await_progress().
|
|
*/
|
|
#define FF_CODEC_CAP_ALLOCATE_PROGRESS (1 << 6)
|
|
/**
|
|
* Codec handles avctx->thread_count == 0 (auto) internally.
|
|
*/
|
|
#define FF_CODEC_CAP_AUTO_THREADS (1 << 7)
|
|
/**
|
|
* Codec handles output frame properties internally instead of letting the
|
|
* internal logic derive them from AVCodecInternal.last_pkt_props.
|
|
*/
|
|
#define FF_CODEC_CAP_SETS_FRAME_PROPS (1 << 8)
|
|
/**
|
|
* Codec supports embedded ICC profiles (AV_FRAME_DATA_ICC_PROFILE).
|
|
*/
|
|
#define FF_CODEC_CAP_ICC_PROFILES (1 << 9)
|
|
/**
|
|
* The encoder has AV_CODEC_CAP_DELAY set, but does not actually have delay - it
|
|
* only wants to be flushed at the end to update some context variables (e.g.
|
|
* 2pass stats) or produce a trailing packet. Besides that it immediately
|
|
* produces exactly one output packet per each input frame, just as no-delay
|
|
* encoders do.
|
|
*/
|
|
#define FF_CODEC_CAP_EOF_FLUSH (1 << 10)
|
|
|
|
/**
|
|
* FFCodec.codec_tags termination value
|
|
*/
|
|
#define FF_CODEC_TAGS_END -1
|
|
|
|
typedef struct FFCodecDefault {
|
|
const char *key;
|
|
const char *value;
|
|
} FFCodecDefault;
|
|
|
|
struct AVCodecContext;
|
|
struct AVSubtitle;
|
|
struct AVPacket;
|
|
|
|
enum FFCodecType {
|
|
/* The codec is a decoder using the decode callback;
|
|
* audio and video codecs only. */
|
|
FF_CODEC_CB_TYPE_DECODE,
|
|
/* The codec is a decoder using the decode_sub callback;
|
|
* subtitle codecs only. */
|
|
FF_CODEC_CB_TYPE_DECODE_SUB,
|
|
/* The codec is a decoder using the receive_frame callback;
|
|
* audio and video codecs only. */
|
|
FF_CODEC_CB_TYPE_RECEIVE_FRAME,
|
|
/* The codec is an encoder using the encode callback;
|
|
* audio and video codecs only. */
|
|
FF_CODEC_CB_TYPE_ENCODE,
|
|
/* The codec is an encoder using the encode_sub callback;
|
|
* subtitle codecs only. */
|
|
FF_CODEC_CB_TYPE_ENCODE_SUB,
|
|
/* The codec is an encoder using the receive_packet callback;
|
|
* audio and video codecs only. */
|
|
FF_CODEC_CB_TYPE_RECEIVE_PACKET,
|
|
};
|
|
|
|
typedef struct FFCodec {
|
|
/**
|
|
* The public AVCodec. See codec.h for it.
|
|
*/
|
|
AVCodec p;
|
|
|
|
/**
|
|
* Internal codec capabilities FF_CODEC_CAP_*.
|
|
*/
|
|
unsigned caps_internal:29;
|
|
|
|
/**
|
|
* This field determines the type of the codec (decoder/encoder)
|
|
* and also the exact callback cb implemented by the codec.
|
|
* cb_type uses enum FFCodecType values.
|
|
*/
|
|
unsigned cb_type:3;
|
|
|
|
int priv_data_size;
|
|
/**
|
|
* @name Frame-level threading support functions
|
|
* @{
|
|
*/
|
|
/**
|
|
* Copy necessary context variables from a previous thread context to the current one.
|
|
* If not defined, the next thread will start automatically; otherwise, the codec
|
|
* must call ff_thread_finish_setup().
|
|
*
|
|
* dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
|
|
*/
|
|
int (*update_thread_context)(struct AVCodecContext *dst, const struct AVCodecContext *src);
|
|
|
|
/**
|
|
* Copy variables back to the user-facing context
|
|
*/
|
|
int (*update_thread_context_for_user)(struct AVCodecContext *dst, const struct AVCodecContext *src);
|
|
/** @} */
|
|
|
|
/**
|
|
* Private codec-specific defaults.
|
|
*/
|
|
const FFCodecDefault *defaults;
|
|
|
|
/**
|
|
* Initialize codec static data, called from av_codec_iterate().
|
|
*
|
|
* This is not intended for time consuming operations as it is
|
|
* run for every codec regardless of that codec being used.
|
|
*/
|
|
void (*init_static_data)(struct FFCodec *codec);
|
|
|
|
int (*init)(struct AVCodecContext *);
|
|
|
|
union {
|
|
/**
|
|
* Decode to an AVFrame.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_DECODE.
|
|
*
|
|
* @param avctx codec context
|
|
* @param[out] frame AVFrame for output
|
|
* @param[out] got_frame_ptr decoder sets to 0 or 1 to indicate that
|
|
* a non-empty frame was returned in frame.
|
|
* @param[in] avpkt AVPacket containing the data to be decoded
|
|
* @return amount of bytes read from the packet on success,
|
|
* negative error code on failure
|
|
*/
|
|
int (*decode)(struct AVCodecContext *avctx, struct AVFrame *frame,
|
|
int *got_frame_ptr, struct AVPacket *avpkt);
|
|
/**
|
|
* Decode subtitle data to an AVSubtitle.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_DECODE_SUB.
|
|
*
|
|
* Apart from that this is like the decode callback.
|
|
*/
|
|
int (*decode_sub)(struct AVCodecContext *avctx, struct AVSubtitle *sub,
|
|
int *got_frame_ptr, const struct AVPacket *avpkt);
|
|
/**
|
|
* Decode API with decoupled packet/frame dataflow.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_RECEIVE_FRAME.
|
|
*
|
|
* This function is called to get one output frame. It should call
|
|
* ff_decode_get_packet() to obtain input data.
|
|
*/
|
|
int (*receive_frame)(struct AVCodecContext *avctx, struct AVFrame *frame);
|
|
/**
|
|
* Encode data to an AVPacket.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_ENCODE
|
|
*
|
|
* @param avctx codec context
|
|
* @param[out] avpkt output AVPacket
|
|
* @param[in] frame AVFrame containing the input to be encoded
|
|
* @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a
|
|
* non-empty packet was returned in avpkt.
|
|
* @return 0 on success, negative error code on failure
|
|
*/
|
|
int (*encode)(struct AVCodecContext *avctx, struct AVPacket *avpkt,
|
|
const struct AVFrame *frame, int *got_packet_ptr);
|
|
/**
|
|
* Encode subtitles to a raw buffer.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_ENCODE_SUB.
|
|
*/
|
|
int (*encode_sub)(struct AVCodecContext *avctx, uint8_t *buf,
|
|
int buf_size, const struct AVSubtitle *sub);
|
|
/**
|
|
* Encode API with decoupled frame/packet dataflow.
|
|
* cb is in this state if cb_type is FF_CODEC_CB_TYPE_RECEIVE_PACKET.
|
|
*
|
|
* This function is called to get one output packet.
|
|
* It should call ff_encode_get_frame() to obtain input data.
|
|
*/
|
|
int (*receive_packet)(struct AVCodecContext *avctx, struct AVPacket *avpkt);
|
|
} cb;
|
|
|
|
int (*close)(struct AVCodecContext *);
|
|
|
|
/**
|
|
* Flush buffers.
|
|
* Will be called when seeking
|
|
*/
|
|
void (*flush)(struct AVCodecContext *);
|
|
|
|
/**
|
|
* Decoding only, a comma-separated list of bitstream filters to apply to
|
|
* packets before decoding.
|
|
*/
|
|
const char *bsfs;
|
|
|
|
/**
|
|
* Array of pointers to hardware configurations supported by the codec,
|
|
* or NULL if no hardware supported. The array is terminated by a NULL
|
|
* pointer.
|
|
*
|
|
* The user can only access this field via avcodec_get_hw_config().
|
|
*/
|
|
const struct AVCodecHWConfigInternal *const *hw_configs;
|
|
|
|
/**
|
|
* List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
|
|
*/
|
|
const uint32_t *codec_tags;
|
|
} FFCodec;
|
|
|
|
#if CONFIG_SMALL
|
|
#define CODEC_LONG_NAME(str) .p.long_name = NULL
|
|
#else
|
|
#define CODEC_LONG_NAME(str) .p.long_name = str
|
|
#endif
|
|
|
|
#if HAVE_THREADS
|
|
#define UPDATE_THREAD_CONTEXT(func) \
|
|
.update_thread_context = (func)
|
|
#define UPDATE_THREAD_CONTEXT_FOR_USER(func) \
|
|
.update_thread_context_for_user = (func)
|
|
#else
|
|
#define UPDATE_THREAD_CONTEXT(func) \
|
|
.update_thread_context = NULL
|
|
#define UPDATE_THREAD_CONTEXT_FOR_USER(func) \
|
|
.update_thread_context_for_user = NULL
|
|
#endif
|
|
|
|
#if FF_API_OLD_CHANNEL_LAYOUT
|
|
#define CODEC_OLD_CHANNEL_LAYOUTS(...) CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(((const uint64_t[]) { __VA_ARGS__, 0 }))
|
|
#if defined(__clang__)
|
|
#define CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(array) \
|
|
FF_DISABLE_DEPRECATION_WARNINGS \
|
|
.p.channel_layouts = (array), \
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#else
|
|
#define CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(array) .p.channel_layouts = (array),
|
|
#endif
|
|
#else
|
|
/* This is only provided to allow to test disabling FF_API_OLD_CHANNEL_LAYOUT
|
|
* without removing all the FF_API_OLD_CHANNEL_LAYOUT codeblocks.
|
|
* It is of course still expected to be removed when FF_API_OLD_CHANNEL_LAYOUT
|
|
* will be finally removed (along with all usages of these macros). */
|
|
#define CODEC_OLD_CHANNEL_LAYOUTS(...)
|
|
#define CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(array)
|
|
#endif
|
|
|
|
#define FF_CODEC_DECODE_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_DECODE, \
|
|
.cb.decode = (func)
|
|
#define FF_CODEC_DECODE_SUB_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_DECODE_SUB, \
|
|
.cb.decode_sub = (func)
|
|
#define FF_CODEC_RECEIVE_FRAME_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_RECEIVE_FRAME, \
|
|
.cb.receive_frame = (func)
|
|
#define FF_CODEC_ENCODE_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_ENCODE, \
|
|
.cb.encode = (func)
|
|
#define FF_CODEC_ENCODE_SUB_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_ENCODE_SUB, \
|
|
.cb.encode_sub = (func)
|
|
#define FF_CODEC_RECEIVE_PACKET_CB(func) \
|
|
.cb_type = FF_CODEC_CB_TYPE_RECEIVE_PACKET, \
|
|
.cb.receive_packet = (func)
|
|
|
|
static av_always_inline const FFCodec *ffcodec(const AVCodec *codec)
|
|
{
|
|
return (const FFCodec*)codec;
|
|
}
|
|
|
|
#endif /* AVCODEC_CODEC_INTERNAL_H */
|