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https://github.com/mpv-player/mpv.git
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e56d8a200d
GetTimer() is generally replaced with mp_time_us(). Both calls return microseconds, but the latter uses int64_t, us defined to never wrap, and never returns 0 or negative values. GetTimerMS() has no direct replacement. Instead the other functions are used. For some code, switch to mp_time_sec(), which returns the time as double float value in seconds. The returned time is offset to program start time, so there is enough precision left to deliver microsecond resolution for at least 100 years. Unless it's casted to a float (or the CPU reduces precision), which is why we still use mp_time_us() out of paranoia in places where precision is clearly needed. Always switch to the correct time. The whole point of the new timer calls is that they don't wrap, and storing microseconds in unsigned int variables would negate this. In some cases, remove wrap-around handling for time values.
101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/*
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* muxing using libavformat
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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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* MPlayer 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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* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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 "encode.h"
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#include "video/csputils.h"
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struct encode_lavc_context {
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struct encode_output_conf *options;
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float vo_fps;
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// these are processed from the options
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AVFormatContext *avc;
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AVRational timebase;
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AVCodec *vc;
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AVCodec *ac;
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AVDictionary *foptions;
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AVDictionary *aoptions;
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AVDictionary *voptions;
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// values created during encoding
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int header_written; // -1 means currently writing
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// sync to audio mode
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double audio_pts_offset;
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double last_video_in_pts;
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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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long long abytes;
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long long vbytes;
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struct stream *twopass_bytebuffer_a;
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struct stream *twopass_bytebuffer_v;
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double t0;
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unsigned int frames;
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bool expect_video;
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bool expect_audio;
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bool video_first;
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bool audio_first;
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// has encoding failed?
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bool failed;
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bool finished;
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};
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// interface for vo/ao drivers
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AVStream *encode_lavc_alloc_stream(struct encode_lavc_context *ctx, enum AVMediaType mt);
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void encode_lavc_write_stats(struct encode_lavc_context *ctx, AVStream *stream);
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int encode_lavc_write_frame(struct encode_lavc_context *ctx, AVPacket *packet);
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int encode_lavc_supports_pixfmt(struct encode_lavc_context *ctx, enum PixelFormat format);
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AVCodec *encode_lavc_get_codec(struct encode_lavc_context *ctx, AVStream *stream);
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int encode_lavc_open_codec(struct encode_lavc_context *ctx, AVStream *stream);
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int encode_lavc_available(struct encode_lavc_context *ctx);
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int encode_lavc_timesyncfailed(struct encode_lavc_context *ctx);
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int encode_lavc_start(struct encode_lavc_context *ctx); // returns 1 on success
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int encode_lavc_oformat_flags(struct encode_lavc_context *ctx);
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double encode_lavc_getoffset(struct encode_lavc_context *ctx, AVStream *stream);
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void encode_lavc_fail(struct encode_lavc_context *ctx, const char *format, ...); // report failure of encoding
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bool encode_lavc_set_csp(struct encode_lavc_context *ctx,
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AVStream *stream, enum mp_csp csp);
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bool encode_lavc_set_csp_levels(struct encode_lavc_context *ctx,
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AVStream *stream, enum mp_csp_levels lev);
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enum mp_csp encode_lavc_get_csp(struct encode_lavc_context *ctx,
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AVStream *stream);
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enum mp_csp_levels encode_lavc_get_csp_levels(struct encode_lavc_context *ctx,
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AVStream *stream);
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#endif
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