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lavc/xsubenc: return meaningfull error codes

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Signed-off-by: Philip Langdale <philipl@overt.org>
This commit is contained in:
John Stebbins 2020-04-10 12:48:01 -06:00 committed by Philip Langdale
parent 5fcf620eee
commit fa736a994c
1 changed files with 6 additions and 6 deletions
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12
libavcodec/xsubenc.c
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@ -63,7 +63,7 @@ static int xsub_encode_rle(PutBitContext *pb, const uint8_t *bitmap,
while (x0 < w) {
// Make sure we have enough room for at least one run and padding
if (pb->size_in_bits - put_bits_count(pb) < 7*8)
return -1;
return AVERROR_BUFFER_TOO_SMALL;
x1 = x0;
color = bitmap[x1++] & 3;
@ -124,7 +124,7 @@ static int xsub_encode(AVCodecContext *avctx, unsigned char *buf,
if (bufsize < 27 + 7*2 + 4*3) {
av_log(avctx, AV_LOG_ERROR, "Buffer too small for XSUB header.\n");
return -1;
return AVERROR_BUFFER_TOO_SMALL;
}
// TODO: support multiple rects
@ -147,7 +147,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
// TODO: render text-based subtitles into bitmaps
if (!h->rects[0]->data[0] || !h->rects[0]->data[1]) {
av_log(avctx, AV_LOG_WARNING, "No subtitle bitmap available.\n");
return -1;
return AVERROR(EINVAL);
}
// TODO: color reduction, similar to dvdsub encoder
@ -160,7 +160,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (make_tc(startTime, start_tc) || make_tc(endTime, end_tc)) {
av_log(avctx, AV_LOG_WARNING, "Time code >= 100 hours.\n");
return -1;
return AVERROR(EINVAL);
}
snprintf(buf, 28,
@ -195,13 +195,13 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (xsub_encode_rle(&pb, h->rects[0]->data[0],
h->rects[0]->linesize[0] * 2,
h->rects[0]->w, (h->rects[0]->h + 1) >> 1))
return -1;
return AVERROR_BUFFER_TOO_SMALL;
bytestream_put_le16(&rlelenptr, put_bits_count(&pb) >> 3); // Length of first field
if (xsub_encode_rle(&pb, h->rects[0]->data[0] + h->rects[0]->linesize[0],
h->rects[0]->linesize[0] * 2,
h->rects[0]->w, h->rects[0]->h >> 1))
return -1;
return AVERROR_BUFFER_TOO_SMALL;
// Enforce total height to be a multiple of 2
if (h->rects[0]->h & 1) {