cellRec: fix width of encoder frames

Turns out the pitch was accidentally used as width, leading to an out of bounds read/write.
I kept the pitch in the struct for completeness' sake. It may be needed later, if only for error checks.
This commit is contained in:
Megamouse 2023-08-12 23:06:22 +02:00
parent f40a6d496a
commit 39bbf17caf
12 changed files with 24 additions and 22 deletions

View file

@ -15,7 +15,7 @@ namespace utils
image_sink() = default;
virtual void stop(bool flush = true) = 0;
virtual void add_frame(std::vector<u8>& frame, const u32 width, const u32 height, s32 pixel_format, usz timestamp_ms) = 0;
virtual void add_frame(std::vector<u8>& frame, u32 pitch, u32 width, u32 height, s32 pixel_format, usz timestamp_ms) = 0;
s64 get_pts(usz timestamp_ms) const
{
@ -32,12 +32,13 @@ namespace utils
struct encoder_frame
{
encoder_frame() = default;
encoder_frame(usz timestamp_ms, u32 width, u32 height, s32 av_pixel_format, std::vector<u8>&& data)
: timestamp_ms(timestamp_ms), width(width), height(height), av_pixel_format(av_pixel_format), data(std::move(data))
encoder_frame(usz timestamp_ms, u32 pitch, u32 width, u32 height, s32 av_pixel_format, std::vector<u8>&& data)
: timestamp_ms(timestamp_ms), pitch(pitch), width(width), height(height), av_pixel_format(av_pixel_format), data(std::move(data))
{}
s64 pts = -1; // Optional
usz timestamp_ms = 0;
u32 pitch = 0;
u32 width = 0;
u32 height = 0;
s32 av_pixel_format = 0; // NOTE: Make sure this is a valid AVPixelFormat

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@ -604,14 +604,14 @@ namespace utils
m_audio_codec_id = codec_id;
}
void video_encoder::add_frame(std::vector<u8>& frame, const u32 width, const u32 height, s32 pixel_format, usz timestamp_ms)
void video_encoder::add_frame(std::vector<u8>& frame, u32 pitch, u32 width, u32 height, s32 pixel_format, usz timestamp_ms)
{
// Do not allow new frames while flushing
if (m_flush)
return;
std::lock_guard lock(m_mtx);
m_frames_to_encode.emplace_back(timestamp_ms, width, height, pixel_format, std::move(frame));
m_frames_to_encode.emplace_back(timestamp_ms, pitch, width, height, pixel_format, std::move(frame));
}
void video_encoder::pause(bool flush)

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@ -120,7 +120,7 @@ namespace utils
void set_sample_rate(u32 sample_rate);
void set_audio_bitrate(u32 bitrate);
void set_audio_codec(s32 codec_id);
void add_frame(std::vector<u8>& frame, const u32 width, const u32 height, s32 pixel_format, usz timestamp_ms) override;
void add_frame(std::vector<u8>& frame, u32 pitch, u32 width, u32 height, s32 pixel_format, usz timestamp_ms) override;
void pause(bool flush = true);
void stop(bool flush = true) override;
void encode();

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@ -92,7 +92,7 @@ namespace utils
return pts > m_last_pts_incoming;
}
void video_provider::present_frame(std::vector<u8>& data, const u32 width, const u32 height, bool is_bgra)
void video_provider::present_frame(std::vector<u8>& data, u32 pitch, u32 width, u32 height, bool is_bgra)
{
std::lock_guard lock(m_mutex);
@ -132,6 +132,6 @@ namespace utils
m_last_pts_incoming = pts;
m_current_encoder_frame++;
m_image_sink->add_frame(data, width, height, is_bgra ? AVPixelFormat::AV_PIX_FMT_BGRA : AVPixelFormat::AV_PIX_FMT_RGBA, timestamp_ms);
m_image_sink->add_frame(data, pitch, width, height, is_bgra ? AVPixelFormat::AV_PIX_FMT_BGRA : AVPixelFormat::AV_PIX_FMT_RGBA, timestamp_ms);
}
}

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@ -20,7 +20,7 @@ namespace utils
bool set_image_sink(std::shared_ptr<image_sink> sink, recording_mode type);
void set_pause_time(usz pause_time_ms);
bool can_consume_frame();
void present_frame(std::vector<u8>& data, const u32 width, const u32 height, bool is_bgra);
void present_frame(std::vector<u8>& data, u32 pitch, u32 width, u32 height, bool is_bgra);
private:
recording_mode m_type = recording_mode::stopped;