On Wed, 25 Jul 2012, Samuel Pitoiset wrote:

On Wed, Jul 25, 2012 at 8:05 PM, Martin Storsjö <[email protected]> wrote:
On Sat, 21 Jul 2012, Samuel Pitoiset wrote:

---
libavformat/rtmpproto.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index c003b37..5af03c4 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -859,11 +859,11 @@ static int handle_client_bw(URLContext *s,
RTMPPacket *pkt)
{
    RTMPContext *rt = s->priv_data;

-    if (pkt->data_size < 4) {
+    if (pkt->data_size != 5) {
        av_log(s, AV_LOG_ERROR,
-               "Client bandwidth report packet is less than 4 bytes long
(%d)\n",
+               "Client bandwidth packet is not 5 bytes long (%d)\n",
               pkt->data_size);
-        return -1;
+        return AVERROR(EINVAL);
    }

    rt->client_report_size = AV_RB32(pkt->data);
--
1.7.11.1


This changes behaviour - is there a reason to treat it as an error if the
client bandwidth packet is longer than 5 bytes? I'd rather have the error
code change separate from the behaviour change, and an explanation why you'd
like to change the behaviour.

We already return an error code when a client bandwidth packet is less
than 4 bytes long (ie. it's more or less the same behaviour for chunk
size packets). So, I made these changes in order to be consistent
regarding the other handle functions I have refactored. Otherwise, I
submitted a separate patch which change the error code.

Ok, if the reason is to make things more consistent, that is a valid reason I guess. If sent as a separate change from the other things with proper explanation and motivation, I guess it might be ok, but then I'd rather have the check in handle_chunk_size fixed instead - I'd rather be more liberal when it comes to unknown data in packets.

Also, doesn't handle_ping and handle_server_bw need similar packet size checks as well?

// Martin
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