mirror of https://github.com/mpv-player/mpv
119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdbool.h>
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#include "filter.h"
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struct sh_stream;
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struct mp_codec_params;
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struct mp_image_params;
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struct mp_decoder_list;
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struct demux_packet;
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// (free with talloc_free(mp_decoder_wrapper.f)
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struct mp_decoder_wrapper {
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// Filter with no input and 1 output, which returns the decoded data.
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struct mp_filter *f;
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// For informational purposes.
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char *decoder_desc;
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// Can be set by user.
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struct mp_recorder_sink *recorder_sink;
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// --- for STREAM_VIDEO
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// FPS from demuxer or from user override
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float fps;
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// Framedrop control for playback (not used for hr seek etc.)
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int attempt_framedrops; // try dropping this many frames
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int dropped_frames; // total frames _probably_ dropped
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// --- for STREAM_AUDIO
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// Prefer spdif wrapper over real decoders.
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bool try_spdif;
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// A pts reset was observed (audio only, heuristic).
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bool pts_reset;
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};
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// Create the decoder wrapper for the given stream, plus underlying decoder.
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// The src stream must be selected, and remain valid and selected until the
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// wrapper is destroyed.
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struct mp_decoder_wrapper *mp_decoder_wrapper_create(struct mp_filter *parent,
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struct sh_stream *src);
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struct mp_decoder_list *video_decoder_list(void);
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struct mp_decoder_list *audio_decoder_list(void);
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// For precise seeking: if possible, try to drop frames up until the given PTS.
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// This is automatically unset if the target is reached, or on reset.
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void mp_decoder_wrapper_set_start_pts(struct mp_decoder_wrapper *d, double pts);
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enum dec_ctrl {
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VDCTRL_FORCE_HWDEC_FALLBACK, // force software decoding fallback
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VDCTRL_GET_HWDEC,
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VDCTRL_REINIT,
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VDCTRL_GET_BFRAMES,
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// framedrop mode: 0=none, 1=standard, 2=hrseek
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VDCTRL_SET_FRAMEDROP,
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};
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int mp_decoder_wrapper_control(struct mp_decoder_wrapper *d,
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enum dec_ctrl cmd, void *arg);
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// Force it to reevaluate output parameters (for overrides like aspect).
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void mp_decoder_wrapper_reset_params(struct mp_decoder_wrapper *d);
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void mp_decoder_wrapper_get_video_dec_params(struct mp_decoder_wrapper *d,
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struct mp_image_params *p);
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bool mp_decoder_wrapper_reinit(struct mp_decoder_wrapper *d);
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struct mp_decoder {
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// Bidirectional filter; takes MP_FRAME_PACKET for input.
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struct mp_filter *f;
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// Can be set by decoder impl. on init for "special" functionality.
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int (*control)(struct mp_filter *f, enum dec_ctrl cmd, void *arg);
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};
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struct mp_decoder_fns {
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struct mp_decoder *(*create)(struct mp_filter *parent,
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struct mp_codec_params *codec,
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const char *decoder);
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void (*add_decoders)(struct mp_decoder_list *list);
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};
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extern const struct mp_decoder_fns vd_lavc;
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extern const struct mp_decoder_fns ad_lavc;
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extern const struct mp_decoder_fns ad_spdif;
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// Convenience wrapper for lavc based decoders. eof_flag must be set to false
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// on init and resets.
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void lavc_process(struct mp_filter *f, bool *eof_flag,
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bool (*send)(struct mp_filter *f, struct demux_packet *pkt),
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bool (*receive)(struct mp_filter *f, struct mp_frame *res));
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// ad_spdif.c
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struct mp_decoder_list *select_spdif_codec(const char *codec, const char *pref);
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