[FFmpeg-devel] [PATCH 1/1] librtmp: use AVBPrint instead of char *

[Marton Balint]

On Sat, 16 Apr 2022, Martin Storsjö wrote:

> On Fri, 15 Apr 2022, Tristan Matthews wrote:
>
>>  This avoids having to do one pass to calculate the full length to allocate
>>  followed by a second pass to actually append values.
>>  ---
>>  libavformat/librtmp.c | 124 +++++++++++-------------------------------
>>  1 file changed, 33 insertions(+), 91 deletions(-)
>>
>>  diff --git a/libavformat/librtmp.c b/libavformat/librtmp.c
>>  index 43013e46e0..b7e9fc81cf 100644
>>  --- a/libavformat/librtmp.c
>>  +++ b/libavformat/librtmp.c
>>  @@ -25,6 +25,7 @@
>>   */
>>
>>  #include "libavutil/avstring.h"
>>  +#include "libavutil/bprint.h"
>>  #include "libavutil/mathematics.h"
>>  #include "libavutil/opt.h"
>>  #include "avformat.h"
>>  @@ -38,6 +39,7 @@
>>
>>  typedef struct LibRTMPContext {
>>      const AVClass *class;
>>  +    AVBPrint filename;
>>      RTMP rtmp;
>>      char *app;
>>      char *conn;
>>  @@ -50,7 +52,6 @@ typedef struct LibRTMPContext {
>>      char *pageurl;
>>      char *client_buffer_time;
>>      int live;
>>  -    char *temp_filename;
>>      int buffer_size;
>>  } LibRTMPContext;
>
> This looks ok to me.
>
> (I guess it also could be considered viable to not store the AVBprint in the 
> context but detach an allocated string instead; that would decrease the 
> persistent allocation size a little, at the cost of some more copying, but 
> the difference is probably negligible, so this probably is sensible as is.)

Agreed.

>
> Let's still wait for Marton's review too.

LGTM as well. Thanks.

Marton