RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-02-07 23:32:33 +00:00
Code Issues Projects Releases Wiki Activity

fftools/ffmpeg_filter: log an information message about filter graph reconfigurations

Browse Source 
Filter graph reconfigurations can cause nontrivial issues, e.g. PTS
discontinuities, so it is better to warn the user about them.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2023-12-29 14:12:12 +01:00
parent 324be730fc
commit 90bef6390f
1 changed files with 52 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
fftools/ffmpeg_filter.c
View File

@ -2598,43 +2598,57 @@ static int send_eof(FilterGraphThread *fgt, InputFilter *ifilter,
return 0;
}
enum ReinitReason {
VIDEO_CHANGED = (1 << 0),
AUDIO_CHANGED = (1 << 1),
MATRIX_CHANGED = (1 << 2),
HWACCEL_CHANGED = (1 << 3)
};
static const char *unknown_if_null(const char *str)
{
return str ? str : "unknown";
}
static int send_frame(FilterGraph *fg, FilterGraphThread *fgt,
InputFilter *ifilter, AVFrame *frame)
{
InputFilterPriv *ifp = ifp_from_ifilter(ifilter);
FrameData *fd;
AVFrameSideData *sd;
int need_reinit, ret;
int need_reinit = 0, ret;
/* determine if the parameters for this input changed */
need_reinit = ifp->format != frame->format;
switch (ifp->type) {
case AVMEDIA_TYPE_AUDIO:
need_reinit |= ifp->sample_rate != frame->sample_rate ||
av_channel_layout_compare(&ifp->ch_layout, &frame->ch_layout);
if (ifp->format != frame->format ||
ifp->sample_rate != frame->sample_rate ||
av_channel_layout_compare(&ifp->ch_layout, &frame->ch_layout))
need_reinit |= AUDIO_CHANGED;
break;
case AVMEDIA_TYPE_VIDEO:
need_reinit |= ifp->width != frame->width ||
ifp->height != frame->height ||
ifp->color_space != frame->colorspace ||
ifp->color_range != frame->color_range;
if (ifp->format != frame->format ||
ifp->width != frame->width ||
ifp->height != frame->height ||
ifp->color_space != frame->colorspace ||
ifp->color_range != frame->color_range)
need_reinit |= VIDEO_CHANGED;
break;
}
if (sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DISPLAYMATRIX)) {
if (!ifp->displaymatrix_present ||
memcmp(sd->data, ifp->displaymatrix, sizeof(ifp->displaymatrix)))
need_reinit = 1;
need_reinit |= MATRIX_CHANGED;
} else if (ifp->displaymatrix_present)
need_reinit = 1;
need_reinit |= MATRIX_CHANGED;
if (!ifp->ist->reinit_filters && fgt->graph)
need_reinit = 0;
if (!!ifp->hw_frames_ctx != !!frame->hw_frames_ctx ||
(ifp->hw_frames_ctx && ifp->hw_frames_ctx->data != frame->hw_frames_ctx->data))
need_reinit = 1;
need_reinit |= HWACCEL_CHANGED;
if (need_reinit) {
ret = ifilter_parameters_from_frame(ifilter, frame);
@ -2664,6 +2678,32 @@ static int send_frame(FilterGraph *fg, FilterGraphThread *fgt,
if (ret < 0)
return ret;
if (fgt->graph) {
AVBPrint reason;
av_bprint_init(&reason, 0, AV_BPRINT_SIZE_AUTOMATIC);
if (need_reinit & AUDIO_CHANGED) {
const char *sample_format_name = av_get_sample_fmt_name(frame->format);
av_bprintf(&reason, "audio parameters changed to %d Hz, ", frame->sample_rate);
av_channel_layout_describe_bprint(&frame->ch_layout, &reason);
av_bprintf(&reason, ", %s, ", unknown_if_null(sample_format_name));
}
if (need_reinit & VIDEO_CHANGED) {
const char *pixel_format_name = av_get_pix_fmt_name(frame->format);
const char *color_space_name = av_color_space_name(frame->colorspace);
const char *color_range_name = av_color_range_name(frame->color_range);
av_bprintf(&reason, "video parameters changed to %s(%s, %s), %dx%d, ",
unknown_if_null(pixel_format_name), unknown_if_null(color_range_name),
unknown_if_null(color_space_name), frame->width, frame->height);
}
if (need_reinit & MATRIX_CHANGED)
av_bprintf(&reason, "display matrix changed, ");
if (need_reinit & HWACCEL_CHANGED)
av_bprintf(&reason, "hwaccel changed, ");
if (reason.len > 1)
reason.str[reason.len - 2] = '\0'; // remove last comma
av_log(fg, AV_LOG_INFO, "Reconfiguring filter graph%s%s\n", reason.len ? " because " : "", reason.str);
}
ret = configure_filtergraph(fg, fgt);
if (ret < 0) {
av_log(fg, AV_LOG_ERROR, "Error reinitializing filters!\n");