diff options
Diffstat (limited to 'doc/examples/muxing.c')
| -rw-r--r-- | doc/examples/muxing.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c index 7becfcdfac..fd5028b7c7 100644 --- a/doc/examples/muxing.c +++ b/doc/examples/muxing.c @@ -59,6 +59,8 @@ typedef struct OutputStream { AVFrame *tmp_frame; float t, tincr, tincr2; + + struct SwsContext *sws_ctx; } OutputStream; static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt) @@ -413,25 +415,25 @@ static void fill_yuv_image(AVFrame *pict, int frame_index, static void write_video_frame(AVFormatContext *oc, OutputStream *ost, int flush) { int ret; - static struct SwsContext *sws_ctx; AVCodecContext *c = ost->st->codec; if (!flush) { if (c->pix_fmt != AV_PIX_FMT_YUV420P) { /* as we only generate a YUV420P picture, we must convert it * to the codec pixel format if needed */ - if (!sws_ctx) { - sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P, - c->width, c->height, c->pix_fmt, - SCALE_FLAGS, NULL, NULL, NULL); - if (!sws_ctx) { + if (!ost->sws_ctx) { + ost->sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P, + c->width, c->height, + c->pix_fmt, + SCALE_FLAGS, NULL, NULL, NULL); + if (!ost->sws_ctx) { fprintf(stderr, "Could not initialize the conversion context\n"); exit(1); } } fill_yuv_image(ost->tmp_frame, frame_count, c->width, c->height); - sws_scale(sws_ctx, + sws_scale(ost->sws_ctx, (const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize, 0, c->height, ost->frame->data, ost->frame->linesize); } else { @@ -485,6 +487,7 @@ static void close_stream(AVFormatContext *oc, OutputStream *ost) avcodec_close(ost->st->codec); av_frame_free(&ost->frame); av_frame_free(&ost->tmp_frame); + sws_freeContext(ost->sws_ctx); } /**************************************************************/ |