mpv/player/video.c

425 lines
14 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.
*/
#include <stddef.h>
#include <stdbool.h>
#include <inttypes.h>
#include <math.h>
#include <assert.h>
#include "config.h"
#include "talloc.h"
#include "common/msg.h"
#include "options/options.h"
#include "common/common.h"
#include "common/encode.h"
#include "options/m_property.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "sub/osd.h"
#include "video/hwdec.h"
#include "video/filter/vf.h"
#include "video/decode/dec_video.h"
#include "video/decode/vd.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
void update_fps(struct MPContext *mpctx)
{
#if HAVE_ENCODING
struct dec_video *d_video = mpctx->d_video;
if (mpctx->encode_lavc_ctx && d_video)
encode_lavc_set_video_fps(mpctx->encode_lavc_ctx, d_video->fps);
#endif
}
static void set_allowed_vo_formats(struct vf_chain *c, struct vo *vo)
{
for (int fmt = IMGFMT_START; fmt < IMGFMT_END; fmt++) {
c->allowed_output_formats[fmt - IMGFMT_START] =
vo->driver->query_format(vo, fmt);
}
}
static void reconfig_video(struct MPContext *mpctx,
const struct mp_image_params *params,
bool probe_only)
{
struct dec_video *d_video = mpctx->d_video;
d_video->decoder_output = *params;
set_allowed_vo_formats(d_video->vfilter, mpctx->video_out);
if (video_reconfig_filters(d_video, params) < 0) {
// Most video filters don't work with hardware decoding, so this
// might be the reason filter reconfig failed.
if (!probe_only &&
video_vd_control(d_video, VDCTRL_FORCE_HWDEC_FALLBACK, NULL) == CONTROL_OK)
{
// Fallback active; decoder will return software format next
// time. Don't abort video decoding.
d_video->vfilter->initialized = 0;
}
return;
}
if (d_video->vfilter->initialized < 1)
return;
struct mp_image_params p = d_video->vfilter->output_params;
const struct vo_driver *info = mpctx->video_out->driver;
MP_INFO(mpctx, "VO: [%s] %dx%d => %dx%d %s\n",
info->name, p.w, p.h, p.d_w, p.d_h, vo_format_name(p.imgfmt));
MP_VERBOSE(mpctx, "VO: Description: %s\n", info->description);
int r = vo_reconfig(mpctx->video_out, &p, 0);
if (r < 0)
d_video->vfilter->initialized = -1;
}
static void recreate_video_filters(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
struct dec_video *d_video = mpctx->d_video;
assert(d_video);
vf_destroy(d_video->vfilter);
d_video->vfilter = vf_new(mpctx->global);
d_video->vfilter->hwdec = &d_video->hwdec_info;
vf_append_filter_list(d_video->vfilter, opts->vf_settings);
// for vf_sub
vf_control_any(d_video->vfilter, VFCTRL_SET_OSD_OBJ, mpctx->osd);
mpctx->osd->render_subs_in_filter
= vf_control_any(d_video->vfilter, VFCTRL_INIT_OSD, NULL) == CONTROL_OK;
set_allowed_vo_formats(d_video->vfilter, mpctx->video_out);
}
int reinit_video_filters(struct MPContext *mpctx)
{
struct dec_video *d_video = mpctx->d_video;
if (!d_video || !d_video->decoder_output.imgfmt)
return -2;
recreate_video_filters(mpctx);
reconfig_video(mpctx, &d_video->decoder_output, true);
return d_video->vfilter && d_video->vfilter->initialized > 0 ? 0 : -1;
}
int reinit_video_chain(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
assert(!(mpctx->initialized_flags & INITIALIZED_VCODEC));
assert(!mpctx->d_video);
init_demux_stream(mpctx, STREAM_VIDEO);
struct sh_stream *sh = mpctx->sh[STREAM_VIDEO];
if (!sh)
goto no_video;
MP_VERBOSE(mpctx, "[V] fourcc:0x%X size:%dx%d fps:%5.3f\n",
sh->format,
sh->video->disp_w, sh->video->disp_h,
sh->video->fps);
double ar = -1.0;
//================== Init VIDEO (codec & libvo) ==========================
if (!opts->fixed_vo || !(mpctx->initialized_flags & INITIALIZED_VO)) {
mpctx->video_out = init_best_video_out(mpctx->global, mpctx->input,
mpctx->encode_lavc_ctx);
if (!mpctx->video_out) {
MP_FATAL(mpctx, "Error opening/initializing "
"the selected video_out (-vo) device.\n");
goto err_out;
}
mpctx->mouse_cursor_visible = true;
mpctx->initialized_flags |= INITIALIZED_VO;
}
update_window_title(mpctx, true);
struct dec_video *d_video = talloc_zero(NULL, struct dec_video);
mpctx->d_video = d_video;
d_video->global = mpctx->global;
d_video->log = mp_log_new(d_video, mpctx->log, "!vd");
d_video->opts = mpctx->opts;
d_video->header = sh;
d_video->fps = sh->video->fps;
d_video->vo = mpctx->video_out;
mpctx->initialized_flags |= INITIALIZED_VCODEC;
vo_control(mpctx->video_out, VOCTRL_GET_HWDEC_INFO, &d_video->hwdec_info);
if (stream_control(sh->demuxer->stream, STREAM_CTRL_GET_ASPECT_RATIO, &ar)
!= STREAM_UNSUPPORTED)
d_video->stream_aspect = ar;
recreate_video_filters(mpctx);
if (!video_init_best_codec(d_video, opts->video_decoders))
goto err_out;
bool saver_state = opts->pause || !opts->stop_screensaver;
vo_control(mpctx->video_out, saver_state ? VOCTRL_RESTORE_SCREENSAVER
: VOCTRL_KILL_SCREENSAVER, NULL);
vo_control(mpctx->video_out, mpctx->paused ? VOCTRL_PAUSE
: VOCTRL_RESUME, NULL);
mpctx->restart_playback = true;
mpctx->sync_audio_to_video = !sh->attached_picture;
mpctx->delay = 0;
mpctx->video_next_pts = MP_NOPTS_VALUE;
mpctx->playing_last_frame = false;
mpctx->last_frame_duration = 0;
mpctx->vo_pts_history_seek_ts++;
vo_seek_reset(mpctx->video_out);
reset_subtitles(mpctx);
if (opts->force_fps) {
d_video->fps = opts->force_fps;
MP_INFO(mpctx, "FPS forced to be %5.3f.\n", d_video->fps);
}
if (!sh->video->fps && !opts->force_fps && !opts->correct_pts) {
MP_ERR(mpctx, "FPS not specified in the "
"header or invalid, use the -fps option.\n");
}
update_fps(mpctx);
return 1;
err_out:
no_video:
uninit_player(mpctx, INITIALIZED_VCODEC | (opts->force_vo ? 0 : INITIALIZED_VO));
cleanup_demux_stream(mpctx, STREAM_VIDEO);
mpctx->current_track[STREAM_VIDEO] = NULL;
handle_force_window(mpctx, true);
MP_INFO(mpctx, "Video: no video\n");
return 0;
}
// Try to refresh the video by doing a precise seek to the currently displayed
// frame. This can go wrong in all sorts of ways, so use sparingly.
void mp_force_video_refresh(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
// If not paused, the next frame should come soon enough.
if (opts->pause && mpctx->last_vo_pts != MP_NOPTS_VALUE)
queue_seek(mpctx, MPSEEK_ABSOLUTE, mpctx->last_vo_pts, 1);
}
static bool filter_output_queued_frame(struct MPContext *mpctx)
{
struct dec_video *d_video = mpctx->d_video;
struct vo *video_out = mpctx->video_out;
struct mp_image *img = vf_output_queued_frame(d_video->vfilter);
if (img)
vo_queue_image(video_out, img);
talloc_free(img);
return !!img;
}
static bool load_next_vo_frame(struct MPContext *mpctx, bool eof)
{
if (vo_get_buffered_frame(mpctx->video_out, eof) >= 0)
return true;
if (filter_output_queued_frame(mpctx))
return true;
return false;
}
// Called after video reinit. This can be generally used to try to insert more
// filters using the filter chain edit functionality in command.c.
static void init_filter_params(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
// Note that the filter chain is already initialized. This code might
// recreate the chain a second time, which is not very elegant, but allows
// us to test whether enabling deinterlacing works with the current video
// format and other filters.
if (opts->deinterlace >= 0)
mp_property_do("deinterlace", M_PROPERTY_SET, &opts->deinterlace, mpctx);
}
static void filter_video(struct MPContext *mpctx, struct mp_image *frame,
bool reconfig_ok)
{
struct dec_video *d_video = mpctx->d_video;
struct mp_image_params params;
mp_image_params_from_image(&params, frame);
if (!mp_image_params_equals(&d_video->decoder_output, &params) ||
d_video->vfilter->initialized < 1)
{
// In case we want to wait until filter chain is drained
if (!reconfig_ok) {
talloc_free(d_video->waiting_decoded_mpi);
d_video->waiting_decoded_mpi = frame;
return;
}
reconfig_video(mpctx, &params, false);
if (d_video->vfilter->initialized > 0)
init_filter_params(mpctx);
}
if (d_video->vfilter->initialized < 1) {
talloc_free(frame);
return;
}
mp_image_set_params(frame, &d_video->vf_input); // force csp/aspect overrides
vf_filter_frame(d_video->vfilter, frame);
filter_output_queued_frame(mpctx);
}
// Reconfigure the video chain and the VO on a format change. This is separate,
// because we wait with the reconfig until the currently buffered video has
// finished displaying. Otherwise, we'd resize the window and then wait for the
// video finishing, which would result in a black window for that frame.
// Does nothing if there was no pending change.
void video_execute_format_change(struct MPContext *mpctx)
{
struct dec_video *d_video = mpctx->d_video;
struct mp_image *decoded_frame = d_video->waiting_decoded_mpi;
d_video->waiting_decoded_mpi = NULL;
if (decoded_frame)
filter_video(mpctx, decoded_frame, true);
}
static int check_framedrop(struct MPContext *mpctx, double frame_time)
{
struct MPOpts *opts = mpctx->opts;
// check for frame-drop:
if (mpctx->d_audio && !mpctx->ao->untimed &&
!demux_stream_eof(mpctx->sh[STREAM_AUDIO]))
{
float delay = opts->playback_speed * ao_get_delay(mpctx->ao);
float d = delay - mpctx->delay;
float fps = mpctx->d_video->fps;
if (frame_time < 0)
frame_time = fps > 0 ? 1.0 / fps : 0;
// we should avoid dropping too many frames in sequence unless we
// are too late. and we allow 100ms A-V delay here:
if (d < -mpctx->dropped_frames * frame_time - 0.100 && !mpctx->paused
&& !mpctx->restart_playback) {
mpctx->drop_frame_cnt++;
mpctx->dropped_frames++;
return mpctx->opts->frame_dropping;
} else
mpctx->dropped_frames = 0;
}
return 0;
}
static double update_video_attached_pic(struct MPContext *mpctx)
{
struct dec_video *d_video = mpctx->d_video;
// Try to decode the picture multiple times, until it is displayed.
if (mpctx->video_out->hasframe)
return -1;
struct mp_image *decoded_frame =
video_decode(d_video, d_video->header->attached_picture, 0);
if (decoded_frame)
filter_video(mpctx, decoded_frame, true);
load_next_vo_frame(mpctx, true);
mpctx->video_next_pts = MP_NOPTS_VALUE;
return 0;
}
double update_video(struct MPContext *mpctx, double endpts)
{
struct dec_video *d_video = mpctx->d_video;
struct vo *video_out = mpctx->video_out;
if (d_video->header->attached_picture)
return update_video_attached_pic(mpctx);
if (load_next_vo_frame(mpctx, false)) {
// Use currently queued VO frame
} else if (d_video->waiting_decoded_mpi) {
// Draining on reconfig
if (!load_next_vo_frame(mpctx, true))
return -1;
} else {
// Decode a new frame
struct demux_packet *pkt = demux_read_packet(d_video->header);
if (pkt && pkt->pts != MP_NOPTS_VALUE)
pkt->pts += mpctx->video_offset;
if ((pkt && pkt->pts >= mpctx->hrseek_pts - .005) ||
d_video->has_broken_packet_pts)
{
mpctx->hrseek_framedrop = false;
}
int framedrop_type = mpctx->hrseek_active && mpctx->hrseek_framedrop ?
1 : check_framedrop(mpctx, -1);
struct mp_image *decoded_frame =
video_decode(d_video, pkt, framedrop_type);
talloc_free(pkt);
if (decoded_frame) {
filter_video(mpctx, decoded_frame, false);
} else if (!pkt) {
if (!load_next_vo_frame(mpctx, true))
return -1;
}
}
// Whether the VO has an image queued.
// If it does, it will be used to time and display the next frame.
if (!video_out->frame_loaded)
return 0;
double pts = video_out->next_pts;
if (endpts == MP_NOPTS_VALUE || pts < endpts)
add_frame_pts(mpctx, pts);
if (mpctx->hrseek_active && pts < mpctx->hrseek_pts - .005) {
vo_skip_frame(video_out);
return 0;
}
mpctx->hrseek_active = false;
double last_pts = mpctx->video_next_pts;
if (last_pts == MP_NOPTS_VALUE)
last_pts = pts;
double frame_time = pts - last_pts;
if (frame_time < 0 || frame_time >= 60) {
// Assume a PTS difference >= 60 seconds is a discontinuity.
MP_WARN(mpctx, "Jump in video pts: %f -> %f\n", last_pts, pts);
frame_time = 0;
}
mpctx->video_next_pts = pts;
if (mpctx->d_audio)
mpctx->delay -= frame_time;
return frame_time;
}