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2f60e61dd5
通过 Bytes 所有权和只读 AVBufferRef 引用池化 NV12 输入，消除中间 AVFrame 的整帧复制，并保留 V4L2 编码包脱离硬件缓冲的处理。 允许输出健康时有界预取 MJPEG，在输出背压时优先解码前丢帧；增加等帧、输出等待、丢帧原因及编码分段耗时统计，提供预取和所有权输入的对照开关。 补充缓冲寿命、只读保护、软件编码回退和队列策略测试及接口说明，保留现有 PTS、解码 worker、音频和加密行为。
52 lines
2.6 KiB
C
52 lines
2.6 KiB
C
#ifndef FFMPEG_RAM_FFI_H
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#define FFMPEG_RAM_FFI_H
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#include <stdint.h>
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#include "ffmpeg_ram_encode_stats.h"
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#define AV_NUM_DATA_POINTERS 8
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typedef void (*RamEncodeCallback)(const uint8_t *data, int len, int64_t pts,
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int key, const void *obj);
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typedef void (*RamEncodePacketCallback)(void *packet, const uint8_t *data,
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int len, int64_t pts, int key,
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const void *obj);
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typedef void (*RamDecodeCallback)(const uint8_t *data, int len, int width,
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int height, int pixfmt, const void *obj);
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void *ffmpeg_ram_new_encoder(const char *name, int width,
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int height, int pixfmt, int align, int fps,
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int gop, int rc, int quality, int kbs, int q,
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int thread_count, int gpu, int *linesize,
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int *offset, int *length,
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RamEncodeCallback callback);
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int ffmpeg_ram_encode(void *encoder, const uint8_t *data, int length,
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const void *obj, int64_t ms);
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int ffmpeg_ram_encode_packet(void *encoder, const uint8_t *data, int length,
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const void *obj, int64_t ms,
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RamEncodePacketCallback callback);
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int ffmpeg_ram_encode_owned_packet(void *encoder, const uint8_t *data,
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int length, void *owner,
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void (*release)(void *, uint8_t *),
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const void *obj, int64_t ms,
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RamEncodePacketCallback callback);
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void ffmpeg_ram_encoder_stats(void *encoder, RamEncodeStats *stats);
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void ffmpeg_ram_free_encoder(void *encoder);
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void ffmpeg_ram_free_packet(void *packet);
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int ffmpeg_ram_get_linesize_offset_length(int pix_fmt, int width, int height,
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int align, int *linesize, int *offset,
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int *length);
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int ffmpeg_ram_set_bitrate(void *encoder, int kbs);
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void ffmpeg_ram_request_keyframe(void *encoder);
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const char *ffmpeg_ram_encoder_last_error(void);
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void *ffmpeg_ram_new_decoder(const char *name, int width, int height,
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int sw_pixfmt, int thread_count,
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RamDecodeCallback callback);
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int ffmpeg_ram_decode(void *decoder, const uint8_t *data, int length,
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const void *obj);
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void ffmpeg_ram_free_decoder(void *decoder);
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const char *ffmpeg_ram_last_error(void);
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#endif // FFMPEG_RAM_FFI_H
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