mirror of https://git.ffmpeg.org/ffmpeg.git
lavc/gif: avoid encoding 0x0 images.
It seems browsers don't like it very much.
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@ -87,7 +87,7 @@ static int gif_image_write_image(AVCodecContext *avctx,
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y_end = avctx->height - 1;
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/* skip common lines */
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while (y_start < height) {
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while (y_start < y_end) {
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if (memcmp(ref + y_start*ref_linesize, buf + y_start*linesize, width))
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break;
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y_start++;
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@ -100,7 +100,7 @@ static int gif_image_write_image(AVCodecContext *avctx,
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height = y_end + 1 - y_start;
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/* skip common columns */
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while (x_start < width) {
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while (x_start < x_end) {
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int same_column = 1;
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for (y = y_start; y < y_end; y++) {
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if (ref[y*ref_linesize + x_start] != buf[y*linesize + x_start]) {
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