mirror of
https://github.com/mpv-player/mpv
synced 2024-12-18 04:45:33 +00:00
385febe276
Each subtitle track gets its own decoder instance (sd_ass). But they use a shared ASS_Renderer. This is done mainly because of fontconfig. Initializing fontconfig is very slow when using it with memory fonts, so there's a practical need to cache this memory font state, which is done by not creating separate ASS_Renderers. This is very dirty and very evil, but we probably can't get rid of it any time soon. The shared ASS_Renderer was not properly synchronized. While the program logic guarantees that only one sd_ass instance is visible at a time, there are other interactions that require synchronization. In particular, I suspect concurrent execution of mp_ass_configure_fonts() and sd_ass.get_bitmaps cause issues in a newer libass development branch. So here's a shitty hack that hopefully fixes things, hopefully only until libass becomes less dependent on fontconfig.
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
#ifndef MPLAYER_SD_H
|
|
#define MPLAYER_SD_H
|
|
|
|
#include "dec_sub.h"
|
|
#include "demux/packet.h"
|
|
|
|
struct sd {
|
|
struct mp_log *log;
|
|
struct MPOpts *opts;
|
|
|
|
const struct sd_functions *driver;
|
|
void *priv;
|
|
|
|
const char *codec;
|
|
|
|
// Extra header data passed from demuxer
|
|
char *extradata;
|
|
int extradata_len;
|
|
|
|
// Set to !=NULL if the input packets are being converted from another
|
|
// format.
|
|
const char *converted_from;
|
|
|
|
// Video resolution used for subtitle decoding. Doesn't necessarily match
|
|
// the resolution of the VO, nor does it have to be the OSD resolution.
|
|
int sub_video_w, sub_video_h;
|
|
|
|
// Shared renderer for ASS - done to avoid reloading embedded fonts.
|
|
struct ass_library *ass_library;
|
|
struct ass_renderer *ass_renderer;
|
|
pthread_mutex_t *ass_lock;
|
|
|
|
// If false, try to remove multiple subtitles.
|
|
// (Only for decoders which have accept_packets_in_advance set.)
|
|
bool no_remove_duplicates;
|
|
|
|
// Set by sub converter
|
|
const char *output_codec;
|
|
char *output_extradata;
|
|
int output_extradata_len;
|
|
|
|
// Internal buffer for sd_conv_* functions
|
|
struct sd_conv_buffer *sd_conv_buffer;
|
|
};
|
|
|
|
struct sd_functions {
|
|
const char *name;
|
|
bool accept_packets_in_advance;
|
|
bool (*supports_format)(const char *format);
|
|
int (*init)(struct sd *sd);
|
|
void (*decode)(struct sd *sd, struct demux_packet *packet);
|
|
void (*reset)(struct sd *sd);
|
|
void (*uninit)(struct sd *sd);
|
|
|
|
void (*fix_events)(struct sd *sd);
|
|
int (*control)(struct sd *sd, enum sd_ctrl cmd, void *arg);
|
|
|
|
// decoder
|
|
void (*get_bitmaps)(struct sd *sd, struct mp_osd_res dim, double pts,
|
|
struct sub_bitmaps *res);
|
|
char *(*get_text)(struct sd *sd, double pts);
|
|
|
|
// converter
|
|
struct demux_packet *(*get_converted)(struct sd *sd);
|
|
};
|
|
|
|
void sd_conv_add_packet(struct sd *sd, void *data, int data_len, double pts,
|
|
double duration);
|
|
struct demux_packet *sd_conv_def_get_converted(struct sd *sd);
|
|
void sd_conv_def_reset(struct sd *sd);
|
|
void sd_conv_def_uninit(struct sd *sd);
|
|
|
|
#define SD_MAX_LINE_LEN 1000
|
|
|
|
#endif
|