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linux-v4l2: Avoid stopping capture on AVERROR(EAGAIN)

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v4l2-decoder: continue sending frame to codec
if avcodec_receive_frame() returns AVERROR(EAGAIN)
This commit is contained in:
JiangXsong
2025-07-18 16:08:24 -04:00
committed by Ryan Foster
parent a45bbe134f
commit bd6c4713bb
1 changed files with 7 additions and 2 deletions
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plugins/linux-v4l2/v4l2-decoder.c
+7 -2
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@@ -17,6 +17,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <obs-module.h>
#include <linux/videodev2.h>
#include <libavutil/error.h>
#include "v4l2-decoder.h"
@@ -86,14 +87,18 @@ void v4l2_destroy_decoder(struct v4l2_decoder *decoder)
int v4l2_decode_frame(struct obs_source_frame *out, uint8_t *data, size_t length, struct v4l2_decoder *decoder)
{
int r;
decoder->packet->data = data;
decoder->packet->size = length;
if (avcodec_send_packet(decoder->context, decoder->packet) < 0) {
blog(LOG_ERROR, "failed to send frame to codec");
return -1;
}
if (avcodec_receive_frame(decoder->context, decoder->frame) < 0) {
r = avcodec_receive_frame(decoder->context, decoder->frame);
if (r == AVERROR(EAGAIN)) {
blog(LOG_DEBUG, "failed to receive frame in this state, try to send new frame to codec");
return 0;
} else if (r < 0) {
blog(LOG_ERROR, "failed to receive frame from codec");
return -1;
}