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| author | Jun Zhao <barryjzhao@tencent.com> | 2020-12-09 17:53:10 +0800 |
|---|---|---|
| committer | Guo, Yejun <yejun.guo@intel.com> | 2020-12-12 13:34:30 +0800 |
| commit | 0320dab265ef880b5b07cac1f9ebaa3fb5417f6a (patch) | |
| tree | 8c7e1db57687419b32b0c4ae383551c3e9aa06a0 /libavfilter | |
| parent | ae2075265b8e779ed0545aa4f9b238013b4e446f (diff) | |
| download | ffmpeg-0320dab265ef880b5b07cac1f9ebaa3fb5417f6a.tar.gz | |
lavfi/dnn: check the return value from sws_getContext
sws_getContext may be return NULL, and it's will be dereferenced,
so add the check.
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/dnn/dnn_io_proc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libavfilter/dnn/dnn_io_proc.c b/libavfilter/dnn/dnn_io_proc.c index db13d7f5ce..c9b49be3bd 100644 --- a/libavfilter/dnn/dnn_io_proc.c +++ b/libavfilter/dnn/dnn_io_proc.c @@ -41,6 +41,13 @@ DNNReturnType proc_from_dnn_to_frame(AVFrame *frame, DNNData *output, void *log_ frame->height, AV_PIX_FMT_GRAY8, 0, NULL, NULL, NULL); + if (!sws_ctx) { + av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion " + "fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n", + av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32), frame->width * 3, frame->height, + av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width * 3, frame->height); + return DNN_ERROR; + } sws_scale(sws_ctx, (const uint8_t *[4]){(const uint8_t *)output->data, 0, 0, 0}, (const int[4]){frame->width * 3 * sizeof(float), 0, 0, 0}, 0, frame->height, (uint8_t * const*)frame->data, frame->linesize); @@ -64,6 +71,13 @@ DNNReturnType proc_from_dnn_to_frame(AVFrame *frame, DNNData *output, void *log_ frame->height, AV_PIX_FMT_GRAY8, 0, NULL, NULL, NULL); + if (!sws_ctx) { + av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion " + "fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n", + av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32), frame->width, frame->height, + av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width, frame->height); + return DNN_ERROR; + } sws_scale(sws_ctx, (const uint8_t *[4]){(const uint8_t *)output->data, 0, 0, 0}, (const int[4]){frame->width * sizeof(float), 0, 0, 0}, 0, frame->height, (uint8_t * const*)frame->data, frame->linesize); @@ -97,6 +111,13 @@ DNNReturnType proc_from_frame_to_dnn(AVFrame *frame, DNNData *input, void *log_c frame->height, AV_PIX_FMT_GRAYF32, 0, NULL, NULL, NULL); + if (!sws_ctx) { + av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion " + "fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n", + av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width * 3, frame->height, + av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32),frame->width * 3, frame->height); + return DNN_ERROR; + } sws_scale(sws_ctx, (const uint8_t **)frame->data, frame->linesize, 0, frame->height, (uint8_t * const*)(&input->data), @@ -121,6 +142,13 @@ DNNReturnType proc_from_frame_to_dnn(AVFrame *frame, DNNData *input, void *log_c frame->height, AV_PIX_FMT_GRAYF32, 0, NULL, NULL, NULL); + if (!sws_ctx) { + av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion " + "fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n", + av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width, frame->height, + av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32),frame->width, frame->height); + return DNN_ERROR; + } sws_scale(sws_ctx, (const uint8_t **)frame->data, frame->linesize, 0, frame->height, (uint8_t * const*)(&input->data), |