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avcodec/libx264: add a flush callback

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2023-03-22 09:37:46 -03:00
parent 9a245bdf5d
commit 4c00aa036e
1 changed files with 23 additions and 3 deletions
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26
libavcodec/libx264.c
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@ -151,7 +151,7 @@ static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
{
X264Context *x4 = ctx->priv_data;
uint8_t *p;
uint64_t size = x4->sei_size;
uint64_t size = FFMAX(x4->sei_size, 0);
int ret;
if (!nnal)
@ -178,8 +178,8 @@ static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
memcpy(p, x4->sei, x4->sei_size);
p += x4->sei_size;
size -= x4->sei_size;
x4->sei_size = 0;
av_freep(&x4->sei);
/* Keep the value around in case of flush */
x4->sei_size = -x4->sei_size;
}
/* x264 guarantees the payloads of the NALs
@ -648,6 +648,24 @@ FF_ENABLE_DEPRECATION_WARNINGS
return 0;
}
static void X264_flush(AVCodecContext *avctx)
{
X264Context *x4 = avctx->priv_data;
x264_nal_t *nal;
int nnal, ret;
x264_picture_t pic_out = {0};
do {
ret = x264_encoder_encode(x4->enc, &nal, &nnal, NULL, &pic_out);
} while (ret > 0 && x264_encoder_delayed_frames(x4->enc));
for (int i = 0; i < x4->nb_reordered_opaque; i++)
opaque_uninit(&x4->reordered_opaque[i]);
if (x4->sei_size < 0)
x4->sei_size = -x4->sei_size;
}
static av_cold int X264_close(AVCodecContext *avctx)
{
X264Context *x4 = avctx->priv_data;
@ -1335,12 +1353,14 @@ FFCodec ff_libx264_encoder = {
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
AV_CODEC_CAP_OTHER_THREADS |
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE |
AV_CODEC_CAP_ENCODER_FLUSH |
AV_CODEC_CAP_ENCODER_RECON_FRAME,
.p.priv_class = &x264_class,
.p.wrapper_name = "libx264",
.priv_data_size = sizeof(X264Context),
.init = X264_init,
FF_CODEC_ENCODE_CB(X264_frame),
.flush = X264_flush,
.close = X264_close,
.defaults = x264_defaults,
#if X264_BUILD < 153