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avfilter/af_whisper: don't set an AVOption accessible field to read only memory

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It should also not be set to an av_malloc'd one given it's not an exported option.

Fixes issue #22741.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2026-04-07 13:27:57 -03:00
parent 5c35d0b880
commit 58752ffcdd
1 changed files with 7 additions and 5 deletions
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libavfilter/af_whisper.c
+7 -5
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@@ -41,7 +41,8 @@
typedef struct WhisperContext {
const AVClass *class;
char *model_path;
char *language;
const char *language;
char *language_str;
bool translate;
bool use_gpu;
int gpu_device;
@@ -152,16 +153,17 @@ static int init(AVFilterContext *ctx)
}
if (!whisper_is_multilingual(wctx->ctx_wsp)) {
if (!wctx->translate && strcmp(wctx->language, "auto") == 0) {
if (!wctx->translate && strcmp(wctx->language_str, "auto") == 0) {
av_log(ctx, AV_LOG_WARNING,
"Multilingual model not provided. Non-English audio may not be correctly transcribed.\n");
} else if (wctx->translate || (strcmp(wctx->language, "auto") != 0 && strcmp(wctx->language, "en") != 0)) {
} else if (wctx->translate || (strcmp(wctx->language_str, "auto") != 0 && strcmp(wctx->language_str, "en") != 0)) {
av_log(ctx, AV_LOG_ERROR,
"%s requested but multilingual model not provided.\n", wctx->translate ? "Translation" : "Transcription");
return AVERROR(ENOSYS);
}
wctx->language = "en";
}
} else
wctx->language = wctx->language_str;
av_log(ctx, AV_LOG_INFO,
"Whisper filter initialized: model: %s lang: %s queue: %" PRId64 " ms\n",
@@ -457,7 +459,7 @@ static int query_formats(const AVFilterContext *ctx,
static const AVOption whisper_options[] = {
{ "model", "Path to the whisper.cpp model file", OFFSET(model_path), AV_OPT_TYPE_STRING,.flags = FLAGS },
{ "language", "Language for transcription ('auto' for auto-detect)", OFFSET(language), AV_OPT_TYPE_STRING, {.str = "auto"}, .flags = FLAGS },
{ "language", "Language for transcription ('auto' for auto-detect)", OFFSET(language_str), AV_OPT_TYPE_STRING, {.str = "auto"}, .flags = FLAGS },
{ "translate", "Translate from source language to English", OFFSET(translate), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, .flags = FLAGS },
{ "queue", "Audio queue size", OFFSET(queue), AV_OPT_TYPE_DURATION, {.i64 = 3000000}, 20000, HOURS, .flags = FLAGS },
{ "use_gpu", "Use GPU for processing", OFFSET(use_gpu), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, .flags = FLAGS },