mirror of
https://github.com/mpv-player/mpv
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414c47d1d8
This avoids printing any stray messages in encode output stream. --o is already pre-parse cli option which is designed to be parsed before anything else is printed to output. So we can use that to force stderr output if needed for encode mode.
117 lines
4.0 KiB
C
117 lines
4.0 KiB
C
/*
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* muxing using libavformat
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*
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* Copyright (C) 2011 Rudolf Polzer <divVerent@xonotic.org>
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*
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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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#ifndef MPLAYER_ENCODE_LAVC_H
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#define MPLAYER_ENCODE_LAVC_H
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/avstring.h>
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#include <libavutil/pixfmt.h>
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#include <libavutil/opt.h>
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#include <libavutil/mathematics.h>
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#include "common/common.h"
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#include "encode.h"
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#include "osdep/threads.h"
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#include "video/csputils.h"
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struct encode_lavc_context {
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// --- Immutable after init
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struct mpv_global *global;
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struct encode_opts *options;
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struct mp_log *log;
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struct encode_priv *priv;
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const AVOutputFormat *oformat;
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const char *filename;
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// All entry points must be guarded with the lock. Functions called by
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// the playback core lock this automatically, but ao_lavc.c and vo_lavc.c
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// must lock manually before accessing state.
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mp_mutex lock;
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// anti discontinuity mode
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double next_in_pts;
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double discontinuity_pts_offset;
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};
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// --- interface for vo/ao drivers
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// Static information after encoder init. This never changes (even if there are
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// dynamic runtime changes, they have to work over AVPacket side data).
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// For use in encoder_context, most fields are copied from encoder_context.encoder
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// by encoder_init_codec_and_muxer().
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struct encoder_stream_info {
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AVRational timebase; // timebase used by the encoder (in frames/out packets)
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AVCodecParameters *codecpar;
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};
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// The encoder parts for each stream (no muxing parts included).
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// This is private to each stream.
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struct encoder_context {
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struct mpv_global *global;
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struct encode_opts *options;
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struct mp_log *log;
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const AVOutputFormat *oformat;
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// (avoid using this)
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struct encode_lavc_context *encode_lavc_ctx;
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enum stream_type type;
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// (different access restrictions before/after encoder init)
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struct encoder_stream_info info;
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AVCodecContext *encoder;
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struct mux_stream *mux_stream;
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// (essentially private)
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struct stream *twopass_bytebuffer;
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AVPacket *pkt;
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};
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// Free with talloc_free(). (Keep in mind actual deinitialization requires
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// sending a flush packet.)
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// This can fail and return NULL.
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struct encoder_context *encoder_context_alloc(struct encode_lavc_context *ctx,
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enum stream_type type,
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struct mp_log *log);
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// After setting your codec parameters on p->encoder, you call this to "open"
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// the encoder. This also initializes p->mux_stream. Returns false on failure.
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// on_ready is called as soon as the muxer has been initialized. Then you are
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// allowed to write packets with encoder_encode().
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// Warning: the on_ready callback is called asynchronously, so you need to
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// make sure to properly synchronize everything.
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bool encoder_init_codec_and_muxer(struct encoder_context *p,
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void (*on_ready)(void *ctx), void *ctx);
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// Encode the frame and write the packet. frame is ref'ed as need.
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bool encoder_encode(struct encoder_context *p, AVFrame *frame);
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// Return muxer timebase (only available after on_ready() has been called).
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// Caller needs to acquire encode_lavc_context.lock (or call it from on_ready).
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AVRational encoder_get_mux_timebase_unlocked(struct encoder_context *p);
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void encoder_update_log(struct mpv_global *global);
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#endif
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