> On Mar 14, 2025, at 04:03, Marton Balint <c...@passwd.hu> wrote:
>
>
> On Thu, 13 Mar 2025, Zhao Zhili wrote:
>
>> From: Zhao Zhili <zhiliz...@tencent.com>
>>
>> Optimizing memory footprint in memory-constrained systems.
>>
>> Signed-off-by: Zhao Zhili <zhiliz...@tencent.com>
>> ---
>> libavformat/avio.c | 2 ++
>> libavformat/version.h | 2 +-
>> 2 files changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/libavformat/avio.c b/libavformat/avio.c
>> index d109f3adff..e1b959ed73 100644
>> --- a/libavformat/avio.c
>> +++ b/libavformat/avio.c
>> @@ -61,6 +61,8 @@ static const AVOption options[] = {
>> {"protocol_whitelist", "List of protocols that are allowed to be used",
>> OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D },
>> {"protocol_blacklist", "List of protocols that are not allowed to be
>> used", OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL }, 0,
>> 0, D },
>> {"rw_timeout", "Timeout for IO operations (in microseconds)",
>> offsetof(URLContext, rw_timeout), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0,
>> INT64_MAX, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM },
>> + {"max_pkt_size", "Default maximum packet size in bytes, could be
>> overwritten by particular protocol",
>> + offsetof(URLContext, max_packet_size), AV_OPT_TYPE_INT, { .i64
>> = IO_BUFFER_SIZE }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM |
>> AV_OPT_FLAG_DECODING_PARAM },
>> { NULL }
>> };
>
>
> This feels super confusing. A *max_packet_size* option which might not do
> anything at all depending on the protocol the user is using, and which the
> user might override with the protocol specific *pkt_size* option if it
> exists. So I'd rather not expose ->max_pkt_size like that.
rw_timeout has the same issue, it’s still useful for users.
The patch is for
https://ffmpeg.org/pipermail/ffmpeg-devel/2025-March/341114.html
We can add pkt_size for more protocols, but it sounds weird for tcp
with pkt_size option.
Use can change AVIOContext::max_packet_size directly. I’m not sure
if it’s better or valid.
>
> Regards,
> Marton
>
>
>>
>> diff --git a/libavformat/version.h b/libavformat/version.h
>> index 6ffdf61b43..e1ab967f5b 100644
>> --- a/libavformat/version.h
>> +++ b/libavformat/version.h
>> @@ -32,7 +32,7 @@
>> #include "version_major.h"
>>
>> #define LIBAVFORMAT_VERSION_MINOR 9
>> -#define LIBAVFORMAT_VERSION_MICRO 107
>> +#define LIBAVFORMAT_VERSION_MICRO 108
>>
>> #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
>> LIBAVFORMAT_VERSION_MINOR, \
>> --
>> 2.46.0
>>
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
>>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org <mailto:ffmpeg-devel@ffmpeg.org>
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-requ...@ffmpeg.org <mailto:ffmpeg-devel-requ...@ffmpeg.org> with
> subject "unsubscribe".
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
