ffmpeg | branch: master | Marton Balint <[email protected]> | Mon Aug 5 21:50:42 2019 +0200| [a82f8f2f10d0a4d8072919a8e4bdc1c39f4d27b8] | committer: Marton Balint
avformat/avio: add avio_print_string_array and avio_print These functions can be used to print a variable number of strings consecutively to the IO context. Unlike av_bprintf, no temporary buffer is necessary. Signed-off-by: Marton Balint <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a82f8f2f10d0a4d8072919a8e4bdc1c39f4d27b8 --- doc/APIchanges | 3 +++ libavformat/avio.h | 17 +++++++++++++++++ libavformat/aviobuf.c | 6 ++++++ libavformat/version.h | 2 +- 4 files changed, 27 insertions(+), 1 deletion(-) diff --git a/doc/APIchanges b/doc/APIchanges index 6603a8229e..ba35b847d9 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2017-10-21 API changes, most recent first: +2019-08-xx - xxxxxxxxxx - lavf 58.31.100 - avio.h + Add avio_print_string_array and avio_print. + 2019-07-27 - xxxxxxxxxx - lavu 56.33.100 - tx.h Add AV_TX_DOUBLE_FFT and AV_TX_DOUBLE_MDCT diff --git a/libavformat/avio.h b/libavformat/avio.h index dcb8dcdf93..910e4f1b48 100644 --- a/libavformat/avio.h +++ b/libavformat/avio.h @@ -575,6 +575,23 @@ int avio_feof(AVIOContext *s); int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); /** + * Write a NULL terminated array of strings to the context. + * Usually you don't need to use this function directly but its macro wrapper, + * avio_print. + */ +void avio_print_string_array(AVIOContext *s, const char *strings[]); + +/** + * Write strings (const char *) to the context. + * This is a convenience macro around avio_print_string_array and it + * automatically creates the string array from the variable argument list. + * For simple string concatenations this function is more performant than using + * avio_printf since it does not need a temporary buffer. + */ +#define avio_print(s, ...) \ + avio_print_string_array(s, (const char*[]){__VA_ARGS__, NULL}) + +/** * Force flushing of buffered data. * * For write streams, force the buffered data to be immediately written to the output, diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c index a69c30e0af..85d809c6cd 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -1259,6 +1259,12 @@ int avio_printf(AVIOContext *s, const char *fmt, ...) return ret; } +void avio_print_string_array(AVIOContext *s, const char *strings[]) +{ + for(; *strings; strings++) + avio_write(s, (const unsigned char *)*strings, strlen(*strings)); +} + int avio_pause(AVIOContext *s, int pause) { if (!s->read_pause) diff --git a/libavformat/version.h b/libavformat/version.h index 45efaff9b9..feceaedc08 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -32,7 +32,7 @@ // Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium) // Also please add any ticket numbers that you believe might be affected here #define LIBAVFORMAT_VERSION_MAJOR 58 -#define LIBAVFORMAT_VERSION_MINOR 30 +#define LIBAVFORMAT_VERSION_MINOR 31 #define LIBAVFORMAT_VERSION_MICRO 100 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
