mirror of
https://github.com/mpv-player/mpv
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77320ad45e
This is simpler and more robust, especially for the hwdec fallback case. The most annoying issue is that C doesn't support multiple return values (or sum types), so the decode call gets all awkward. The hwdec fallback case does not need to try to produce some output after the fallback anymore. Instead, it can use the normal "replay" code path. We invert the "eof" bool that vd_lavc.c used internally. The receive_frame decoder API returns the inverse of EOF, because returning "true" from the decode function if EOF was reached feels awkward.
57 lines
1.9 KiB
C
57 lines
1.9 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_VD_H
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#define MPLAYER_VD_H
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#include "video/mp_image.h"
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#include "demux/stheader.h"
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#include "dec_video.h"
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struct demux_packet;
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struct mp_decoder_list;
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/* interface of video decoder drivers */
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typedef struct vd_functions
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{
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const char *name;
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void (*add_decoders)(struct mp_decoder_list *list);
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int (*init)(struct dec_video *vd, const char *decoder);
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void (*uninit)(struct dec_video *vd);
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int (*control)(struct dec_video *vd, int cmd, void *arg);
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// Return whether or not the packet has been consumed.
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bool (*send_packet)(struct dec_video *vd, struct demux_packet *pkt);
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// Return whether decoding is still going on (false if EOF was reached).
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// Never returns false & *out_image set, but can return true with no image.
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bool (*receive_frame)(struct dec_video *vd, struct mp_image **out_image);
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} vd_functions_t;
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// NULL terminated array of all drivers
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extern const vd_functions_t *const mpcodecs_vd_drivers[];
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enum vd_ctrl {
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VDCTRL_RESET = 1, // reset decode state after seeking
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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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#endif /* MPLAYER_VD_H */
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