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FFmpeg/libavfilter/f_setpts.c
Michael Niedermayer a05a44e205 Merge commit '7e350379f87e7f74420b4813170fe808e2313911'
* commit '7e350379f87e7f74420b4813170fe808e2313911':
  lavfi: switch to AVFrame.

Conflicts:
	doc/filters.texi
	libavfilter/af_ashowinfo.c
	libavfilter/audio.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersink.c
	libavfilter/buffersrc.c
	libavfilter/buffersrc.h
	libavfilter/f_select.c
	libavfilter/f_setpts.c
	libavfilter/fifo.c
	libavfilter/split.c
	libavfilter/src_movie.c
	libavfilter/version.h
	libavfilter/vf_aspect.c
	libavfilter/vf_bbox.c
	libavfilter/vf_blackframe.c
	libavfilter/vf_delogo.c
	libavfilter/vf_drawbox.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_fieldorder.c
	libavfilter/vf_fps.c
	libavfilter/vf_frei0r.c
	libavfilter/vf_gradfun.c
	libavfilter/vf_hqdn3d.c
	libavfilter/vf_lut.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vf_showinfo.c
	libavfilter/vf_transpose.c
	libavfilter/vf_vflip.c
	libavfilter/vf_yadif.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavfilter/yadif.h

Following are notes about the merge authorship and various technical details.

Michael Niedermayer:
  * Main merge operation, notably avfilter.c and video.c
  * Switch to AVFrame:
    - afade
    - anullsrc
    - apad
    - aresample
    - blackframe
    - deshake
    - idet
    - il
    - mandelbrot
    - mptestsrc
    - noise
    - setfield
    - smartblur
    - tinterlace
  * various merge changes and fixes in:
    - ashowinfo
    - blackdetect
    - field
    - fps
    - select
    - testsrc
    - yadif

Nicolas George:
  * Switch to AVFrame:
    - make rawdec work with refcounted frames. Adapted from commit
      759001c534 by Anton Khirnov.
      Also, fix the use of || instead of | in a flags check.
    - make buffer sink and src, audio and video work all together

Clément Bœsch:
  * Switch to AVFrame:
    - aevalsrc
    - alphaextract
    - blend
    - cellauto
    - colormatrix
    - concat
    - earwax
    - ebur128
    - edgedetect
    - geq
    - histeq
    - histogram
    - hue
    - kerndeint
    - life
    - movie
    - mp (with the help of Michael)
    - overlay
    - pad
    - pan
    - pp
    - pp
    - removelogo
    - sendcmd
    - showspectrum
    - showwaves
    - silencedetect
    - stereo3d
    - subtitles
    - super2xsai
    - swapuv
    - thumbnail
    - tile

Hendrik Leppkes:
  * Switch to AVFrame:
    - aconvert
    - amerge
    - asetnsamples
    - atempo
    - biquads

Matthieu Bouron:
  * Switch to AVFrame
    - alphamerge
    - decimate
    - volumedetect

Stefano Sabatini:
  * Switch to AVFrame:
    - astreamsync
    - flite
    - framestep

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Clément Bœsch <ubitux@gmail.com>
Signed-off-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-10 01:40:35 +01:00

270 lines
8.6 KiB
C

/*
* Copyright (c) 2010 Stefano Sabatini
* Copyright (c) 2008 Victor Paesa
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* video presentation timestamp (PTS) modification filter
*/
#include "libavutil/eval.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/time.h"
#include "avfilter.h"
#include "internal.h"
#include "audio.h"
#include "video.h"
static const char *const var_names[] = {
"FRAME_RATE", ///< defined only for constant frame-rate video
"INTERLACED", ///< tell if the current frame is interlaced
"N", ///< frame number (starting at zero)
"NB_CONSUMED_SAMPLES", ///< number of samples consumed by the filter (only audio)
"NB_SAMPLES", ///< number of samples in the current frame (only audio)
"POS", ///< original position in the file of the frame
"PREV_INPTS", ///< previous input PTS
"PREV_INT", ///< previous input time in seconds
"PREV_OUTPTS", ///< previous output PTS
"PREV_OUTT", ///< previous output time in seconds
"PTS", ///< original pts in the file of the frame
"SAMPLE_RATE", ///< sample rate (only audio)
"STARTPTS", ///< PTS at start of movie
"STARTT", ///< time at start of movie
"T", ///< original time in the file of the frame
"TB", ///< timebase
"RTCTIME", ///< wallclock (RTC) time in micro seconds
"RTCSTART", ///< wallclock (RTC) time at the start of the movie in micro seconds
NULL
};
enum var_name {
VAR_FRAME_RATE,
VAR_INTERLACED,
VAR_N,
VAR_NB_CONSUMED_SAMPLES,
VAR_NB_SAMPLES,
VAR_POS,
VAR_PREV_INPTS,
VAR_PREV_INT,
VAR_PREV_OUTPTS,
VAR_PREV_OUTT,
VAR_PTS,
VAR_SAMPLE_RATE,
VAR_STARTPTS,
VAR_STARTT,
VAR_T,
VAR_TB,
VAR_RTCTIME,
VAR_RTCSTART,
VAR_VARS_NB
};
typedef struct {
AVExpr *expr;
double var_values[VAR_VARS_NB];
enum AVMediaType type;
} SetPTSContext;
static av_cold int init(AVFilterContext *ctx, const char *args)
{
SetPTSContext *setpts = ctx->priv;
int ret;
if ((ret = av_expr_parse(&setpts->expr, args ? args : "PTS",
var_names, NULL, NULL, NULL, NULL, 0, ctx)) < 0) {
av_log(ctx, AV_LOG_ERROR, "Error while parsing expression '%s'\n", args);
return ret;
}
setpts->var_values[VAR_N ] = 0.0;
setpts->var_values[VAR_PREV_INPTS ] = setpts->var_values[VAR_PREV_INT ] = NAN;
setpts->var_values[VAR_PREV_OUTPTS] = setpts->var_values[VAR_PREV_OUTT] = NAN;
setpts->var_values[VAR_STARTPTS ] = setpts->var_values[VAR_STARTT ] = NAN;
return 0;
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
SetPTSContext *setpts = ctx->priv;
setpts->type = inlink->type;
setpts->var_values[VAR_TB] = av_q2d(inlink->time_base);
setpts->var_values[VAR_RTCSTART] = av_gettime();
setpts->var_values[VAR_SAMPLE_RATE] =
setpts->type == AVMEDIA_TYPE_AUDIO ? inlink->sample_rate : NAN;
setpts->var_values[VAR_FRAME_RATE] = inlink->frame_rate.num && inlink->frame_rate.den ?
av_q2d(inlink->frame_rate) : NAN;
av_log(inlink->src, AV_LOG_VERBOSE, "TB:%f FRAME_RATE:%f SAMPLE_RATE:%f\n",
setpts->var_values[VAR_TB],
setpts->var_values[VAR_FRAME_RATE],
setpts->var_values[VAR_SAMPLE_RATE]);
return 0;
}
#define D2TS(d) (isnan(d) ? AV_NOPTS_VALUE : (int64_t)(d))
#define TS2D(ts) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))
#define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts)*av_q2d(tb))
#define BUF_SIZE 64
static inline char *double2int64str(char *buf, double v)
{
if (isnan(v)) snprintf(buf, BUF_SIZE, "nan");
else snprintf(buf, BUF_SIZE, "%"PRId64, (int64_t)v);
return buf;
}
#define d2istr(v) double2int64str((char[BUF_SIZE]){0}, v)
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
SetPTSContext *setpts = inlink->dst->priv;
int64_t in_pts = frame->pts;
double d;
if (isnan(setpts->var_values[VAR_STARTPTS])) {
setpts->var_values[VAR_STARTPTS] = TS2D(frame->pts);
setpts->var_values[VAR_STARTT ] = TS2T(frame->pts, inlink->time_base);
}
setpts->var_values[VAR_PTS ] = TS2D(frame->pts);
setpts->var_values[VAR_T ] = TS2T(frame->pts, inlink->time_base);
setpts->var_values[VAR_POS ] = av_frame_get_pkt_pos(frame) == -1 ? NAN : av_frame_get_pkt_pos(frame);
setpts->var_values[VAR_RTCTIME ] = av_gettime();
switch (inlink->type) {
case AVMEDIA_TYPE_VIDEO:
setpts->var_values[VAR_INTERLACED] = frame->interlaced_frame;
break;
case AVMEDIA_TYPE_AUDIO:
setpts->var_values[VAR_NB_SAMPLES] = frame->nb_samples;
break;
}
d = av_expr_eval(setpts->expr, setpts->var_values, NULL);
av_log(inlink->dst, AV_LOG_DEBUG,
"N:%"PRId64" PTS:%s T:%f POS:%s",
(int64_t)setpts->var_values[VAR_N],
d2istr(setpts->var_values[VAR_PTS]),
setpts->var_values[VAR_T],
d2istr(setpts->var_values[VAR_POS]));
switch (inlink->type) {
case AVMEDIA_TYPE_VIDEO:
av_log(inlink->dst, AV_LOG_DEBUG, " INTERLACED:%"PRId64,
(int64_t)setpts->var_values[VAR_INTERLACED]);
break;
case AVMEDIA_TYPE_AUDIO:
av_log(inlink->dst, AV_LOG_DEBUG, " NB_SAMPLES:%"PRId64" NB_CONSUMED_SAMPLES:%"PRId64,
(int64_t)setpts->var_values[VAR_NB_SAMPLES],
(int64_t)setpts->var_values[VAR_NB_CONSUMED_SAMPLES]);
break;
}
av_log(inlink->dst, AV_LOG_DEBUG, " -> PTS:%s T:%f\n", d2istr(d), TS2T(d, inlink->time_base));
frame->pts = D2TS(d);
setpts->var_values[VAR_PREV_INPTS ] = TS2D(in_pts);
setpts->var_values[VAR_PREV_INT ] = TS2T(in_pts, inlink->time_base);
setpts->var_values[VAR_PREV_OUTPTS] = TS2D(frame->pts);
setpts->var_values[VAR_PREV_OUTT] = TS2T(frame->pts, inlink->time_base);
setpts->var_values[VAR_N] += 1.0;
if (setpts->type == AVMEDIA_TYPE_AUDIO) {
setpts->var_values[VAR_NB_CONSUMED_SAMPLES] += frame->nb_samples;
}
return ff_filter_frame(inlink->dst->outputs[0], frame);
}
static av_cold void uninit(AVFilterContext *ctx)
{
SetPTSContext *setpts = ctx->priv;
av_expr_free(setpts->expr);
setpts->expr = NULL;
}
#if CONFIG_ASETPTS_FILTER
static const AVFilterPad avfilter_af_asetpts_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.get_audio_buffer = ff_null_get_audio_buffer,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad avfilter_af_asetpts_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
},
{ NULL }
};
AVFilter avfilter_af_asetpts = {
.name = "asetpts",
.description = NULL_IF_CONFIG_SMALL("Set PTS for the output audio frame."),
.init = init,
.uninit = uninit,
.priv_size = sizeof(SetPTSContext),
.inputs = avfilter_af_asetpts_inputs,
.outputs = avfilter_af_asetpts_outputs,
};
#endif /* CONFIG_ASETPTS_FILTER */
#if CONFIG_SETPTS_FILTER
static const AVFilterPad avfilter_vf_setpts_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.get_video_buffer = ff_null_get_video_buffer,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
static const AVFilterPad avfilter_vf_setpts_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
AVFilter avfilter_vf_setpts = {
.name = "setpts",
.description = NULL_IF_CONFIG_SMALL("Set PTS for the output video frame."),
.init = init,
.uninit = uninit,
.priv_size = sizeof(SetPTSContext),
.inputs = avfilter_vf_setpts_inputs,
.outputs = avfilter_vf_setpts_outputs,
};
#endif /* CONFIG_SETPTS_FILTER */