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9954fe01a9
This exposes whether a video track is detected as an image, which is useful for profile conditions, property expansion and lavfi-complex. The lavf demuxer sets image to true when the existing check detects an image. When the lavf demuxer fails, the mf one guesses if the file is an image by its extension, so sh->image is set to true when the mf demuxer succeds and there's only one file. The mkv demuxer just sets image to true for any attached picture. The timeline demuxer just copies the value of image from source to destination. This sets image to true for attached pictures, standalone images and images added with !new_stream in EDL playlists, but it is imperfect since you could concatenate multiple images in an EDL playlist (which should be done with the mf demuxer anyway). This is good enough anyway since the comment of the modified function already says it is "Imperfect and arbitrary".
118 lines
3.8 KiB
C
118 lines
3.8 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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#ifndef MPLAYER_STHEADER_H
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#define MPLAYER_STHEADER_H
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#include <stdbool.h>
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#include "common/common.h"
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#include "audio/chmap.h"
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#include "video/mp_image.h"
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struct MPOpts;
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struct demuxer;
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// Stream headers:
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struct sh_stream {
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enum stream_type type;
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// Index into demuxer->streams.
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int index;
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// Demuxer/format specific ID. Corresponds to the stream IDs as encoded in
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// some file formats (e.g. MPEG), or an index chosen by demux.c.
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int demuxer_id;
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// FFmpeg stream index (AVFormatContext.streams[index]), or equivalent.
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int ff_index;
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struct mp_codec_params *codec;
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char *title;
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char *lang; // language code
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bool default_track; // container default track flag
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bool forced_track; // container forced track flag
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bool dependent_track; // container dependent track flag
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bool visual_impaired_track; // container flag
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bool hearing_impaired_track;// container flag
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bool image; // video stream is an image
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bool still_image; // video stream contains still images
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int hls_bitrate;
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struct mp_tags *tags;
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bool missing_timestamps;
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double seek_preroll;
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// stream is a picture (such as album art)
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struct demux_packet *attached_picture;
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// Internal to demux.c
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struct demux_stream *ds;
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};
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struct mp_codec_params {
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enum stream_type type;
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// E.g. "h264" (usually corresponds to AVCodecDescriptor.name)
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const char *codec;
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// Usually a FourCC, exact meaning depends on codec.
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unsigned int codec_tag;
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unsigned char *extradata; // codec specific per-stream header
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int extradata_size;
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// Codec specific header data (set by demux_lavf.c only)
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struct AVCodecParameters *lav_codecpar;
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// Timestamp granularity for converting double<->rational timestamps.
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int native_tb_num, native_tb_den;
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// Used by an obscure bug workaround mechanism. As an exception to the usual
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// rules, demuxers are allowed to set this after adding the sh_stream, but
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// only before the demuxer open call returns.
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struct demux_packet *first_packet;
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// STREAM_AUDIO
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int samplerate;
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struct mp_chmap channels;
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bool force_channels;
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int bitrate; // compressed bits/sec
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int block_align;
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struct replaygain_data *replaygain_data;
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// STREAM_VIDEO
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bool avi_dts; // use DTS timing; first frame and DTS is 0
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double fps; // frames per second (set only if constant fps)
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bool reliable_fps; // the fps field is definitely not broken
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int par_w, par_h; // pixel aspect ratio (0 if unknown/square)
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int disp_w, disp_h; // display size
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int rotate; // intended display rotation, in degrees, [0, 359]
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int stereo_mode; // mp_stereo3d_mode (0 if none/unknown)
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struct mp_colorspace color; // colorspace info where available
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// STREAM_VIDEO + STREAM_AUDIO
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int bits_per_coded_sample;
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// STREAM_SUB
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double frame_based; // timestamps are frame-based (and this is the
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// fallback framerate used for timestamps)
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};
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#endif /* MPLAYER_STHEADER_H */
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