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https://github.com/mpv-player/mpv
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4f5509e1dd
This is intended for cases when --hwdec needs to override the decoder implementation in use, like for example on the RPI. It does two things: 1. Allow the hwdec to indicate a decoder suffix. libavcodec by convention adds a suffix to all wrapper decoders, and here we start relying on it. While not necessarily the best idea, it's the only thing we got. libavcodec's hwaccel list is useless, because it only has the codec ID, not the associated decoder's name. 2. Make --hwdec=auto work properly. It shouldn't fail anymore, and hwdec probing should reliably work, even if a different decoder is selected with --vd. The semantics of --hwdec should dictate that it overrides the default decoder.
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
#ifndef MPV_LAVC_H
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#define MPV_LAVC_H
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#include <stdbool.h>
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#include <libavcodec/avcodec.h>
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#include "demux/stheader.h"
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#include "video/mp_image.h"
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#include "video/hwdec.h"
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#define HWDEC_DELAY_QUEUE_COUNT 2
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typedef struct lavc_ctx {
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struct mp_log *log;
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struct MPOpts *opts;
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AVCodecContext *avctx;
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AVFrame *pic;
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struct vd_lavc_hwdec *hwdec;
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AVRational codec_timebase;
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enum AVPixelFormat pix_fmt;
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enum AVDiscard skip_frame;
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bool flushing;
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const char *decoder;
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bool hwdec_failed;
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bool hwdec_notified;
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struct mp_image **delay_queue;
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int num_delay_queue;
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int max_delay_queue;
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// From VO
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struct mp_hwdec_info *hwdec_info;
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// For free use by hwdec implementation
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void *hwdec_priv;
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int hwdec_fmt;
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int hwdec_w;
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int hwdec_h;
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int hwdec_profile;
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bool hwdec_request_reinit;
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int hwdec_fail_count;
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} vd_ffmpeg_ctx;
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struct vd_lavc_hwdec {
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enum hwdec_type type;
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// If not-0: the IMGFMT_ format that should be accepted in the libavcodec
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// get_format callback.
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int image_format;
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// Setting this will queue the given number of frames before calling
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// process_image() or returning them to the renderer. This can increase
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// efficiency by not blocking on the hardware pipeline by reading back
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// immediately after decoding.
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int delay_queue;
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int (*probe)(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
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const char *codec);
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int (*init)(struct lavc_ctx *ctx);
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int (*init_decoder)(struct lavc_ctx *ctx, int w, int h);
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void (*uninit)(struct lavc_ctx *ctx);
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// Note: if init_decoder is set, this will always use the values from the
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// last successful init_decoder call. Otherwise, it's up to you.
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struct mp_image *(*allocate_image)(struct lavc_ctx *ctx, int w, int h);
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// Process the image returned by the libavcodec decoder.
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struct mp_image *(*process_image)(struct lavc_ctx *ctx, struct mp_image *img);
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// For horrible Intel shit-drivers only
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void (*lock)(struct lavc_ctx *ctx);
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void (*unlock)(struct lavc_ctx *ctx);
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// Optional; if a special hardware decoder is needed (instead of "hwaccel").
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const char *(*get_codec)(struct lavc_ctx *ctx, const char *codec);
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// Suffix for libavcodec decoder. If non-NULL, get_codec() is overridden
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// with hwdec_find_decoder.
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// Intuitively, this will force the corresponding wrapper decoder.
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const char *lavc_suffix;
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};
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enum {
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HWDEC_ERR_NO_CTX = -2,
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HWDEC_ERR_NO_CODEC = -3,
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HWDEC_ERR_EMULATED = -4, // probing successful, but emulated API detected
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};
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struct hwdec_profile_entry {
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enum AVCodecID av_codec;
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int ff_profile;
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uint64_t hw_profile;
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};
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const struct hwdec_profile_entry *hwdec_find_profile(
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struct lavc_ctx *ctx, const struct hwdec_profile_entry *table);
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bool hwdec_check_codec_support(const char *codec,
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const struct hwdec_profile_entry *table);
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int hwdec_get_max_refs(struct lavc_ctx *ctx);
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const char *hwdec_find_decoder(const char *codec, const char *suffix);
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#endif
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