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fftools/ffmpeg_filter: add an AVClass to OutputFilter 

Use it for logging where appropriate, avoid logging to OutputStream as
we do not own it.

This is a step towards decoupling filtering from encoding.
This commit is contained in:
Anton Khirnov 2024-04-02 13:40:42 +02:00
parent 3c3e04c8a3
commit fc6354c39c
2 changed files with 51 additions and 19 deletions
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2
fftools/ffmpeg.h
View File

@ -302,6 +302,8 @@ typedef struct InputFilter {
} InputFilter;
typedef struct OutputFilter {
const AVClass *class;
struct OutputStream *ost;
struct FilterGraph *graph;
uint8_t *name;

68
fftools/ffmpeg_filter.c
View File

@ -188,6 +188,9 @@ typedef struct OutputFilterPriv {
int index;
void *log_parent;
char log_name[32];
char *name;
AVFilterContext *filter;
@ -629,7 +632,21 @@ static char *describe_filter_link(FilterGraph *fg, AVFilterInOut *inout, int in)
avfilter_pad_get_name(pads, inout->pad_idx));
}
static OutputFilter *ofilter_alloc(FilterGraph *fg)
static const char *ofilter_item_name(void *obj)
{
OutputFilterPriv *ofp = obj;
return ofp->log_name;
}
static const AVClass ofilter_class = {
.class_name = "OutputFilter",
.version = LIBAVUTIL_VERSION_INT,
.item_name = ofilter_item_name,
.parent_log_context_offset = offsetof(OutputFilterPriv, log_parent),
.category = AV_CLASS_CATEGORY_FILTER,
};
static OutputFilter *ofilter_alloc(FilterGraph *fg, enum AVMediaType type)
{
OutputFilterPriv *ofp;
OutputFilter *ofilter;
@ -639,10 +656,16 @@ static OutputFilter *ofilter_alloc(FilterGraph *fg)
return NULL;
ofilter = &ofp->ofilter;
ofilter->class = &ofilter_class;
ofp->log_parent = fg;
ofilter->graph = fg;
ofilter->type = type;
ofp->format = -1;
ofp->index = fg->nb_outputs - 1;
snprintf(ofp->log_name, sizeof(ofp->log_name), "%co%d",
av_get_media_type_string(type)[0], ofp->index);
return ofilter;
}
@ -790,6 +813,14 @@ int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
if (!ofp->name)
return AVERROR(EINVAL);
if (fgp->is_simple) {
// for simple filtergraph there is just one output,
// so use only graph-level information for logging
ofp->log_parent = NULL;
av_strlcpy(ofp->log_name, fgp->log_name, sizeof(ofp->log_name));
} else
av_strlcatf(ofp->log_name, sizeof(ofp->log_name), "->%s", ofp->name);
switch (ofilter->type) {
case AVMEDIA_TYPE_VIDEO:
ofp->width = opts->width;
@ -1025,7 +1056,9 @@ int fg_create(FilterGraph **pfg, char *graph_desc, Scheduler *sch)
}
for (AVFilterInOut *cur = outputs; cur; cur = cur->next) {
OutputFilter *const ofilter = ofilter_alloc(fg);
const enum AVMediaType type = avfilter_pad_get_type(cur->filter_ctx->output_pads,
cur->pad_idx);
OutputFilter *const ofilter = ofilter_alloc(fg, type);
if (!ofilter) {
ret = AVERROR(ENOMEM);
@ -1035,8 +1068,6 @@ int fg_create(FilterGraph **pfg, char *graph_desc, Scheduler *sch)
ofilter->linklabel = cur->name;
cur->name = NULL;
ofilter->type = avfilter_pad_get_type(cur->filter_ctx->output_pads,
cur->pad_idx);
ofilter->name = describe_filter_link(fg, cur, 0);
if (!ofilter->name) {
ret = AVERROR(ENOMEM);
@ -1400,7 +1431,7 @@ static int configure_output_audio_filter(FilterGraph *fg, AVFilterGraph *graph,
#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do { \
AVFilterContext *filt_ctx; \
\
av_log(fg, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
av_log(ofilter, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
"similarly to -af " filter_name "=%s.\n", arg); \
\
ret = avfilter_graph_create_filter(&filt_ctx, \
@ -1929,7 +1960,7 @@ static int choose_out_timebase(OutputFilterPriv *ofp, AVFrame *frame)
// apply -enc_time_base
if (ofp->enc_timebase.num == ENC_TIME_BASE_DEMUX &&
(fd->dec.tb.num <= 0 || fd->dec.tb.den <= 0)) {
av_log(ofilter->ost, AV_LOG_ERROR,
av_log(ofp, AV_LOG_ERROR,
"Demuxing timebase not available - cannot use it for encoding\n");
return AVERROR(EINVAL);
}
@ -1956,7 +1987,7 @@ static int choose_out_timebase(OutputFilterPriv *ofp, AVFrame *frame)
if (fps->vsync_method == VSYNC_CFR || fps->vsync_method == VSYNC_VSCFR) {
if (!fr.num && !fps->framerate_max.num) {
fr = (AVRational){25, 1};
av_log(ofilter->ost, AV_LOG_WARNING,
av_log(ofp, AV_LOG_WARNING,
"No information "
"about the input framerate is available. Falling "
"back to a default value of 25fps. Use the -r option "
@ -2039,7 +2070,6 @@ static void video_sync_process(OutputFilterPriv *ofp, AVFrame *frame,
int64_t *nb_frames, int64_t *nb_frames_prev)
{
OutputFilter *ofilter = &ofp->ofilter;
OutputStream *ost = ofilter->ost;
FPSConvContext *fps = &ofp->fps;
double delta0, delta, sync_ipts, duration;
@ -2078,9 +2108,9 @@ static void video_sync_process(OutputFilterPriv *ofp, AVFrame *frame,
#endif
) {
if (delta0 < -0.6) {
av_log(ost, AV_LOG_VERBOSE, "Past duration %f too large\n", -delta0);
av_log(ofp, AV_LOG_VERBOSE, "Past duration %f too large\n", -delta0);
} else
av_log(ost, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
av_log(ofp, AV_LOG_DEBUG, "Clipping frame in rate conversion by %f\n", -delta0);
sync_ipts = ofp->next_pts;
duration += delta0;
delta0 = 0;
@ -2089,7 +2119,7 @@ static void video_sync_process(OutputFilterPriv *ofp, AVFrame *frame,
switch (fps->vsync_method) {
case VSYNC_VSCFR:
if (fps->frame_number == 0 && delta0 >= 0.5) {
av_log(ost, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
av_log(ofp, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta0));
delta = duration;
delta0 = 0;
ofp->next_pts = llrint(sync_ipts);
@ -2133,23 +2163,23 @@ finish:
if (*nb_frames_prev == 0 && fps->last_dropped) {
atomic_fetch_add(&ofilter->nb_frames_drop, 1);
av_log(ost, AV_LOG_VERBOSE,
av_log(ofp, AV_LOG_VERBOSE,
"*** dropping frame %"PRId64" at ts %"PRId64"\n",
fps->frame_number, fps->last_frame->pts);
}
if (*nb_frames > (*nb_frames_prev && fps->last_dropped) + (*nb_frames > *nb_frames_prev)) {
uint64_t nb_frames_dup;
if (*nb_frames > dts_error_threshold * 30) {
av_log(ost, AV_LOG_ERROR, "%"PRId64" frame duplication too large, skipping\n", *nb_frames - 1);
av_log(ofp, AV_LOG_ERROR, "%"PRId64" frame duplication too large, skipping\n", *nb_frames - 1);
atomic_fetch_add(&ofilter->nb_frames_drop, 1);
*nb_frames = 0;
return;
}
nb_frames_dup = atomic_fetch_add(&ofilter->nb_frames_dup,
*nb_frames - (*nb_frames_prev && fps->last_dropped) - (*nb_frames > *nb_frames_prev));
av_log(ost, AV_LOG_VERBOSE, "*** %"PRId64" dup!\n", *nb_frames - 1);
av_log(ofp, AV_LOG_VERBOSE, "*** %"PRId64" dup!\n", *nb_frames - 1);
if (nb_frames_dup > fps->dup_warning) {
av_log(ost, AV_LOG_WARNING, "More than %"PRIu64" frames duplicated\n", fps->dup_warning);
av_log(ofp, AV_LOG_WARNING, "More than %"PRIu64" frames duplicated\n", fps->dup_warning);
fps->dup_warning *= 10;
}
}
@ -2191,7 +2221,7 @@ static int close_output(OutputFilterPriv *ofp, FilterGraphThread *fgt)
av_assert0(!frame->buf[0]);
av_log(ofp->ofilter.ost, AV_LOG_WARNING,
av_log(ofp, AV_LOG_WARNING,
"No filtered frames for output stream, trying to "
"initialize anyway.\n");
@ -2308,7 +2338,7 @@ static int fg_output_step(OutputFilterPriv *ofp, FilterGraphThread *fgt,
} else if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
return 1;
} else if (ret < 0) {
av_log(fgp, AV_LOG_WARNING,
av_log(ofp, AV_LOG_WARNING,
"Error in retrieving a frame from the filtergraph: %s\n",
av_err2str(ret));
return ret;
@ -2322,7 +2352,7 @@ static int fg_output_step(OutputFilterPriv *ofp, FilterGraphThread *fgt,
frame->time_base = av_buffersink_get_time_base(filter);
if (debug_ts)
av_log(fgp, AV_LOG_INFO, "filter_raw -> pts:%s pts_time:%s time_base:%d/%d\n",
av_log(ofp, AV_LOG_INFO, "filter_raw -> pts:%s pts_time:%s time_base:%d/%d\n",
av_ts2str(frame->pts), av_ts2timestr(frame->pts, &frame->time_base),
frame->time_base.num, frame->time_base.den);
@ -2330,7 +2360,7 @@ static int fg_output_step(OutputFilterPriv *ofp, FilterGraphThread *fgt,
if (!ofp->tb_out_locked) {
ret = choose_out_timebase(ofp, frame);
if (ret < 0) {
av_log(ost, AV_LOG_ERROR, "Could not choose an output time base\n");
av_log(ofp, AV_LOG_ERROR, "Could not choose an output time base\n");
av_frame_unref(frame);
return ret;
}