On 27/01/15 21:56, Vittorio Giovara wrote:
--- Printed header size. Vittoriolibavcodec/dnxhddec.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c index ca67990..4f714d8 100644 --- a/libavcodec/dnxhddec.c +++ b/libavcodec/dnxhddec.c @@ -110,8 +110,11 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, static const uint8_t header_prefix444[] = { 0x00, 0x00, 0x02, 0x80, 0x02 }; int i, cid, ret; - if (buf_size < 0x280) + if (buf_size < 0x280) { + av_log(ctx->avctx, AV_LOG_ERROR, "buffer too small (%d < 640).\n", + buf_size); return AVERROR_INVALIDDATA; + } if (memcmp(buf, header_prefix, 5) && memcmp(buf, header_prefix444, 5)) { av_log(ctx->avctx, AV_LOG_ERROR, "error in header\n"); @@ -168,7 +171,8 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, return ret; if (buf_size < ctx->cid_table->coding_unit_size) { - av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size\n"); + av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size (%d < %d).\n", + buf_size, ctx->cid_table->coding_unit_size); return AVERROR_INVALIDDATA; } @@ -192,7 +196,9 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i << 2)); av_dlog(ctx->avctx, "mb scan index %d\n", ctx->mb_scan_index[i]); if (buf_size < ctx->mb_scan_index[i] + 0x280) { - av_log(ctx->avctx, AV_LOG_ERROR, "invalid mb scan index\n"); + av_log(ctx->avctx, AV_LOG_ERROR, + "invalid mb scan index (%d < %d).\n", + buf_size, ctx->mb_scan_index[i] + 0x280); return AVERROR_INVALIDDATA; } }
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