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mpv/demux/stheader.h
wm4 5accc5e7c1 vdpau: split off decoder parts, use "new" libavcodec vdpau hwaccel API
Move the decoder parts from vo_vdpau.c to a new file vdpau_old.c. This
file is named so because because it's written against the "old"
libavcodec vdpau pseudo-decoder (e.g. "h264_vdpau").

Add support for the "new" libavcodec vdpau support. This was recently
added and replaces the "old" vdpau parts. (In fact, Libav is about to
deprecate and remove the "old" API without deprecation grace period,
so we have to support it now. Moreover, there will probably be no Libav
release which supports both, so the transition is even less smooth than
we could hope, and we have to support both the old and new API.)

Whether the old or new API is used is checked by a configure test: if
the new API is found, it is used, otherwise the old API is assumed.

Some details might be handled differently. Especially display preemption
is a bit problematic with the "new" libavcodec vdpau support: it wants
to keep a pointer to a specific vdpau API function (which can be driver
specific, because preemption might switch drivers). Also, surface IDs
are now directly stored in AVFrames (and mp_images), so they can't be
forced to VDP_INVALID_HANDLE on preemption. (This changes even with
older libavcodec versions, because mp_image always uses the newer
representation to make vo_vdpau.c simpler.)

Decoder initialization in the new code tries to deal with codec
profiles, while the old code always uses the highest profile per codec.

Surface allocation changes. Since the decoder won't call config() in
vo_vdpau.c on video size change anymore, we allow allocating surfaces
of arbitrary size instead of locking it to what the VO was configured.
The non-hwdec code also has slightly different allocation behavior now.

Enabling the old vdpau special decoders via e.g. --vd=lavc:h264_vdpau
doesn't work anymore (a warning suggesting the --hwdec option is
printed instead).
2013-07-28 19:25:07 +02:00

151 lines
5.3 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_STHEADER_H
#define MPLAYER_STHEADER_H
#include <stdbool.h>
#include "audio/chmap.h"
#include "ms_hdr.h"
struct MPOpts;
struct demuxer;
enum stream_type {
STREAM_VIDEO,
STREAM_AUDIO,
STREAM_SUB,
STREAM_TYPE_COUNT,
};
// Stream headers:
struct sh_stream {
enum stream_type type;
struct demuxer *demuxer;
// Index into demuxer->streams.
int index;
// Demuxer/format specific ID. Corresponds to the stream IDs as encoded in
// some file formats (e.g. MPEG), or an index chosen by demux.c.
int demuxer_id;
// One of these is non-NULL, the others are NULL, depending on the stream
// type.
struct sh_audio *audio;
struct sh_video *video;
struct sh_sub *sub;
// E.g. "h264" (usually corresponds to AVCodecDescriptor.name)
const char *codec;
// Codec specific header data (set by demux_lavf.c)
// Other demuxers use sh_audio->wf and sh_video->bih instead.
struct AVCodecContext *lav_headers;
char *title;
char *lang; // language code
bool default_track; // container default track flag
// stream is a picture (such as album art)
struct demux_packet *attached_picture;
// Human readable description of the running decoder, or NULL
char *decoder_desc;
// shouldn't exist type of stuff
struct MPOpts *opts;
// Internal to demux.c
struct demux_stream *ds;
};
#define SH_COMMON \
struct sh_stream *gsh; \
struct MPOpts *opts; \
/* usually a FourCC, exact meaning depends on gsh->format */ \
unsigned int format; \
int initialized; \
/* audio: last known pts value in output from decoder \
* video: predicted/interpolated PTS of the current frame */ \
double pts; \
/* decoder context */ \
void *context; \
typedef struct sh_audio {
SH_COMMON
// output format:
int sample_format;
int samplerate;
int samplesize;
struct mp_chmap channels;
int i_bps; // == bitrate (compressed bytes/sec)
// decoder buffers:
int audio_out_minsize; // minimal output from decoder may be this much
char *a_buffer; // buffer for decoder output
int a_buffer_len;
int a_buffer_size;
struct af_stream *afilter; // the audio filter stream
const struct ad_functions *ad_driver;
// win32-compatible codec parameters:
WAVEFORMATEX *wf;
// note codec extradata may be either under "wf" or "codecdata"
unsigned char *codecdata;
int codecdata_len;
int pts_bytes; // bytes output by decoder after last known pts
} sh_audio_t;
typedef struct sh_video {
SH_COMMON
float next_frame_time;
double last_pts;
double buffered_pts[32];
int num_buffered_pts;
double codec_reordered_pts;
double prev_codec_reordered_pts;
int num_reordered_pts_problems;
double sorted_pts;
double prev_sorted_pts;
int num_sorted_pts_problems;
int pts_assoc_mode;
// output format: (set by demuxer)
float fps; // frames per second (set only if constant fps)
float aspect; // aspect ratio stored in the file (for prescaling)
float stream_aspect; // aspect ratio in media headers (DVD IFO files)
int i_bps; // == bitrate (compressed bytes/sec)
int disp_w, disp_h; // display size (filled by demuxer or decoder)
// output driver/filters: (set by libmpcodecs core)
struct vf_instance *vfilter; // video filter chain
const struct vd_functions *vd_driver;
int vf_initialized; // -1 failed, 0 not done, 1 done
struct mp_image_params *vf_input; // video filter input params
struct mp_hwdec_info *hwdec_info; // video output hwdec handles
// win32-compatible codec parameters:
BITMAPINFOHEADER *bih;
} sh_video_t;
typedef struct sh_sub {
SH_COMMON
unsigned char *extradata; // extra header data passed from demuxer
int extradata_len;
int frame_based; // timestamps are frame-based
bool is_utf8; // if false, subtitle packet charset is unknown
struct ass_track *track; // loaded by libass
struct dec_sub *dec_sub; // decoder context
} sh_sub_t;
#endif /* MPLAYER_STHEADER_H */