breeze/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-01-12 00:06:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/libsvtjpegxsenc: set bitrate to a sane default if unset

Browse Source 
Better than failing with an impossibly low bitrate.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2025-12-14 12:48:07 -03:00
parent 6f9849cbe5
commit c639ea5eeb
1 changed files with 13 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
libavcodec/libsvtjpegxsenc.c
View File

@@ -192,14 +192,17 @@ static av_cold int svt_jpegxs_enc_init(AVCodecContext* avctx) {
svt_enc->encoder.verbose = log_level < AV_LOG_DEBUG ? VERBOSE_ERRORS :
log_level == AV_LOG_DEBUG ? VERBOSE_SYSTEM_INFO : VERBOSE_WARNINGS;
if (avctx->bit_rate <= 0) {
av_log(avctx, AV_LOG_ERROR, "bitrate can't be 0\n");
return AVERROR(EINVAL);
}
if (avctx->framerate.num <= 0 || avctx->framerate.den <= 0) {
av_log(avctx, AV_LOG_ERROR, "framerate must be set\n");
return AVERROR(EINVAL);
}
if (avctx->bit_rate == 0) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
// default to a 1.5 compression ratio
avctx->bit_rate = (int64_t)avctx->width * avctx->height *
(av_get_bits_per_pixel(desc) * 2 / 3) * av_q2d(avctx->framerate);
av_log(avctx, AV_LOG_WARNING, "No bitrate set, defaulting to %"PRId64"\n", avctx->bit_rate);
}
av_reduce(&bpp.num, &bpp.den, avctx->bit_rate, (int64_t)avctx->width * avctx->height, INT_MAX);
bpp = av_div_q(bpp, avctx->framerate);
@@ -249,6 +252,11 @@ static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_NONE
};
static const FFCodecDefault svt_jpegxs_defaults[] = {
{ "b", "0" },
{ NULL },
};
#define OFFSET(x) offsetof(SvtJpegXsEncodeContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption svtjpegxs_enc_options[] = {
@@ -284,6 +292,7 @@ const FFCodec ff_libsvtjpegxs_encoder = {
.priv_data_size = sizeof(SvtJpegXsEncodeContext),
.init = svt_jpegxs_enc_init,
.close = svt_jpegxs_enc_free,
.defaults = svt_jpegxs_defaults,
FF_CODEC_ENCODE_CB(svt_jpegxs_enc_encode),
.p.capabilities = AV_CODEC_CAP_OTHER_THREADS | AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |