diff mbox series

[FFmpeg-devel,v2] avfilter/vf_subtitles: add wrap_unicode option

Message ID tencent_FC6624D096E6E727D02A9E930A1C47CBAD06@qq.com
State New
Headers show
Series [FFmpeg-devel,v2] avfilter/vf_subtitles: add wrap_unicode option | expand

Checks

Context Check Description
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Zhao Zhili May 22, 2023, 12:05 p.m. UTC
From: Zhao Zhili <zhilizhao@tencent.com>

So CJK can be wrapped automatically.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
---
v2: Don't overwrite wrap automatically for native ASS

 libavfilter/version.h      |  2 +-
 libavfilter/vf_subtitles.c | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

Comments

Lance Wang May 22, 2023, 11:03 a.m. UTC | #1
On Mon, May 22, 2023 at 12:05 PM Zhao Zhili <quinkblack@foxmail.com> wrote:

> From: Zhao Zhili <zhilizhao@tencent.com>
>
> So CJK can be wrapped automatically.
>
> Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
> ---
> v2: Don't overwrite wrap automatically for native ASS
>
>  libavfilter/version.h      |  2 +-
>  libavfilter/vf_subtitles.c | 14 ++++++++++++++
>  2 files changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/libavfilter/version.h b/libavfilter/version.h
> index ba8a6fdab2..08779130f5 100644
> --- a/libavfilter/version.h
> +++ b/libavfilter/version.h
> @@ -32,7 +32,7 @@
>  #include "version_major.h"
>
>  #define LIBAVFILTER_VERSION_MINOR   8
> -#define LIBAVFILTER_VERSION_MICRO 100
> +#define LIBAVFILTER_VERSION_MICRO 101
>
>
>  #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR,
> \
> diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
> index 82e140e986..48038cde23 100644
> --- a/libavfilter/vf_subtitles.c
> +++ b/libavfilter/vf_subtitles.c
> @@ -61,6 +61,7 @@ typedef struct AssContext {
>      int original_w, original_h;
>      int shaping;
>      FFDrawContext draw;
> +    int wrap_unicode;
>  } AssContext;
>
>  #define OFFSET(x) offsetof(AssContext, x)
> @@ -271,6 +272,9 @@ static const AVOption subtitles_options[] = {
>      {"stream_index", "set stream index",
>  OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,
>  INT_MAX,  FLAGS},
>      {"si",           "set stream index",
>  OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,
>  INT_MAX,  FLAGS},
>      {"force_style",  "force subtitle style",
>  OFFSET(force_style),  AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS},
> +#if (LIBASS_VERSION >= 0x01600010)
> +    {"wrap_unicode", "break lines according to the Unicode Line Breaking
> Algorithm", OFFSET(wrap_unicode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1,
> FLAGS },
> +#endif

     {NULL},
>  };
>
> @@ -432,6 +436,16 @@ static av_cold int init_subtitles(AVFilterContext
> *ctx)
>      if (ret < 0)
>          goto end;
>
> +    /* Don't overwrite wrap automatically for native ASS */
> +    if (ass->wrap_unicode == -1)
> +        ass->wrap_unicode = st->codecpar->codec_id != AV_CODEC_ID_ASS;
> +    if (ass->wrap_unicode) {
> +        ret = ass_track_set_feature(ass->track, ASS_FEATURE_WRAP_UNICODE,
> 1);
>

ASS_FEATURE_WRAP_UNICODE  is defined if  LIBASS_VERSION < 0x01600010?


> +        if (ret < 0)
> +            av_log(ctx, AV_LOG_WARNING,
> +                   "libass wasn't built with ASS_FEATURE_WRAP_UNICODE
> support\n");
> +    }
> +
>      if (ass->force_style) {
>          char **list = NULL;
>          char *temp = NULL;
> --
> 2.25.1
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
Zhao Zhili May 22, 2023, 11:34 a.m. UTC | #2
> On May 22, 2023, at 19:03, Lance Wang <lance.lmwang@gmail.com> wrote:
> 
> On Mon, May 22, 2023 at 12:05 PM Zhao Zhili <quinkblack@foxmail.com> wrote:
> 
>> From: Zhao Zhili <zhilizhao@tencent.com>
>> 
>> So CJK can be wrapped automatically.
>> 
>> Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
>> ---
>> v2: Don't overwrite wrap automatically for native ASS
>> 
>> libavfilter/version.h      |  2 +-
>> libavfilter/vf_subtitles.c | 14 ++++++++++++++
>> 2 files changed, 15 insertions(+), 1 deletion(-)
>> 
>> diff --git a/libavfilter/version.h b/libavfilter/version.h
>> index ba8a6fdab2..08779130f5 100644
>> --- a/libavfilter/version.h
>> +++ b/libavfilter/version.h
>> @@ -32,7 +32,7 @@
>> #include "version_major.h"
>> 
>> #define LIBAVFILTER_VERSION_MINOR   8
>> -#define LIBAVFILTER_VERSION_MICRO 100
>> +#define LIBAVFILTER_VERSION_MICRO 101
>> 
>> 
>> #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR,
>> \
>> diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
>> index 82e140e986..48038cde23 100644
>> --- a/libavfilter/vf_subtitles.c
>> +++ b/libavfilter/vf_subtitles.c
>> @@ -61,6 +61,7 @@ typedef struct AssContext {
>>     int original_w, original_h;
>>     int shaping;
>>     FFDrawContext draw;
>> +    int wrap_unicode;
>> } AssContext;
>> 
>> #define OFFSET(x) offsetof(AssContext, x)
>> @@ -271,6 +272,9 @@ static const AVOption subtitles_options[] = {
>>     {"stream_index", "set stream index",
>> OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,
>> INT_MAX,  FLAGS},
>>     {"si",           "set stream index",
>> OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,
>> INT_MAX,  FLAGS},
>>     {"force_style",  "force subtitle style",
>> OFFSET(force_style),  AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS},
>> +#if (LIBASS_VERSION >= 0x01600010)
>> +    {"wrap_unicode", "break lines according to the Unicode Line Breaking
>> Algorithm", OFFSET(wrap_unicode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1,
>> FLAGS },
>> +#endif
> 
>     {NULL},
>> };
>> 
>> @@ -432,6 +436,16 @@ static av_cold int init_subtitles(AVFilterContext
>> *ctx)
>>     if (ret < 0)
>>         goto end;
>> 
>> +    /* Don't overwrite wrap automatically for native ASS */
>> +    if (ass->wrap_unicode == -1)
>> +        ass->wrap_unicode = st->codecpar->codec_id != AV_CODEC_ID_ASS;
>> +    if (ass->wrap_unicode) {
>> +        ret = ass_track_set_feature(ass->track, ASS_FEATURE_WRAP_UNICODE,
>> 1);
>> 
> 
> ASS_FEATURE_WRAP_UNICODE  is defined if  LIBASS_VERSION < 0x01600010?

Oops, I should just remove the #else branch but keep the #if in patch v1.

Will fixed it in v3.

> 
> 
>> +        if (ret < 0)
>> +            av_log(ctx, AV_LOG_WARNING,
>> +                   "libass wasn't built with ASS_FEATURE_WRAP_UNICODE
>> support\n");
>> +    }
>> +
>>     if (ass->force_style) {
>>         char **list = NULL;
>>         char *temp = NULL;
>> --
>> 2.25.1
>> 
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> 
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-request@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-request@ffmpeg.org with subject "unsubscribe".
diff mbox series

Patch

diff --git a/libavfilter/version.h b/libavfilter/version.h
index ba8a6fdab2..08779130f5 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -32,7 +32,7 @@ 
 #include "version_major.h"
 
 #define LIBAVFILTER_VERSION_MINOR   8
-#define LIBAVFILTER_VERSION_MICRO 100
+#define LIBAVFILTER_VERSION_MICRO 101
 
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
index 82e140e986..48038cde23 100644
--- a/libavfilter/vf_subtitles.c
+++ b/libavfilter/vf_subtitles.c
@@ -61,6 +61,7 @@  typedef struct AssContext {
     int original_w, original_h;
     int shaping;
     FFDrawContext draw;
+    int wrap_unicode;
 } AssContext;
 
 #define OFFSET(x) offsetof(AssContext, x)
@@ -271,6 +272,9 @@  static const AVOption subtitles_options[] = {
     {"stream_index", "set stream index",             OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,       INT_MAX,  FLAGS},
     {"si",           "set stream index",             OFFSET(stream_index), AV_OPT_TYPE_INT,    { .i64 = -1 }, -1,       INT_MAX,  FLAGS},
     {"force_style",  "force subtitle style",         OFFSET(force_style),  AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS},
+#if (LIBASS_VERSION >= 0x01600010)
+    {"wrap_unicode", "break lines according to the Unicode Line Breaking Algorithm", OFFSET(wrap_unicode), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, FLAGS },
+#endif
     {NULL},
 };
 
@@ -432,6 +436,16 @@  static av_cold int init_subtitles(AVFilterContext *ctx)
     if (ret < 0)
         goto end;
 
+    /* Don't overwrite wrap automatically for native ASS */
+    if (ass->wrap_unicode == -1)
+        ass->wrap_unicode = st->codecpar->codec_id != AV_CODEC_ID_ASS;
+    if (ass->wrap_unicode) {
+        ret = ass_track_set_feature(ass->track, ASS_FEATURE_WRAP_UNICODE, 1);
+        if (ret < 0)
+            av_log(ctx, AV_LOG_WARNING,
+                   "libass wasn't built with ASS_FEATURE_WRAP_UNICODE support\n");
+    }
+
     if (ass->force_style) {
         char **list = NULL;
         char *temp = NULL;