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/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdbool.h>
#include "filter.h"
struct sh_stream;
struct mp_codec_params;
struct mp_image_params;
struct mp_decoder_list;
struct demux_packet;
// (free with talloc_free(mp_decoder_wrapper.f)
struct mp_decoder_wrapper {
// Filter with no input and 1 output, which returns the decoded data.
struct mp_filter *f;
// For informational purposes.
char *decoder_desc;
// Can be set by user.
struct mp_recorder_sink *recorder_sink;
// --- for STREAM_VIDEO
// FPS from demuxer or from user override
float fps;
// Framedrop control for playback (not used for hr seek etc.)
int attempt_framedrops; // try dropping this many frames
int dropped_frames; // total frames _probably_ dropped
// --- for STREAM_AUDIO
// Prefer spdif wrapper over real decoders.
bool try_spdif;
// A pts reset was observed (audio only, heuristic).
bool pts_reset;
};
// Create the decoder wrapper for the given stream, plus underlying decoder.
// The src stream must be selected, and remain valid and selected until the
// wrapper is destroyed.
struct mp_decoder_wrapper *mp_decoder_wrapper_create(struct mp_filter *parent,
struct sh_stream *src);
struct mp_decoder_list *video_decoder_list(void);
struct mp_decoder_list *audio_decoder_list(void);
// For precise seeking: if possible, try to drop frames up until the given PTS.
// This is automatically unset if the target is reached, or on reset.
void mp_decoder_wrapper_set_start_pts(struct mp_decoder_wrapper *d, double pts);
enum dec_ctrl {
VDCTRL_FORCE_HWDEC_FALLBACK, // force software decoding fallback
VDCTRL_GET_HWDEC,
VDCTRL_REINIT,
VDCTRL_GET_BFRAMES,
// framedrop mode: 0=none, 1=standard, 2=hrseek
VDCTRL_SET_FRAMEDROP,
};
int mp_decoder_wrapper_control(struct mp_decoder_wrapper *d,
enum dec_ctrl cmd, void *arg);
// Force it to reevaluate output parameters (for overrides like aspect).
void mp_decoder_wrapper_reset_params(struct mp_decoder_wrapper *d);
void mp_decoder_wrapper_get_video_dec_params(struct mp_decoder_wrapper *d,
struct mp_image_params *p);
bool mp_decoder_wrapper_reinit(struct mp_decoder_wrapper *d);
struct mp_decoder {
// Bidirectional filter; takes MP_FRAME_PACKET for input.
struct mp_filter *f;
// Can be set by decoder impl. on init for "special" functionality.
int (*control)(struct mp_filter *f, enum dec_ctrl cmd, void *arg);
};
struct mp_decoder_fns {
struct mp_decoder *(*create)(struct mp_filter *parent,
struct mp_codec_params *codec,
const char *decoder);
void (*add_decoders)(struct mp_decoder_list *list);
};
extern const struct mp_decoder_fns vd_lavc;
extern const struct mp_decoder_fns ad_lavc;
extern const struct mp_decoder_fns ad_spdif;
// Convenience wrapper for lavc based decoders. eof_flag must be set to false
// on init and resets.
void lavc_process(struct mp_filter *f, bool *eof_flag,
bool (*send)(struct mp_filter *f, struct demux_packet *pkt),
bool (*receive)(struct mp_filter *f, struct mp_frame *res));
// ad_spdif.c
struct mp_decoder_list *select_spdif_codec(const char *codec, const char *pref);
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