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Force AV_CODEC_CAP_HARDWARE set for OMX decoders

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There are at least 2 out-of-tree OMX decoder implementations
that both lack AV_CODEC_CAP_HARDWARE, so they trick us into
thinking that neither of them is hardware accelerated.

Fixes false decoder warnings when linked against the patched
FFmpeg builds shipping on VisionFive 2 and LicheePi 4A SBCs.
This commit is contained in:
Cameron Gutman 2024-07-05 23:04:10 -05:00
parent 27b173b76b
commit 34fa7167b1
2 changed files with 24 additions and 4 deletions
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24
app/streaming/video/ffmpeg.cpp
View File

@ -84,7 +84,7 @@ static const QMap<QString, int> k_NonHwaccelCodecInfo = {
bool FFmpegVideoDecoder::isHardwareAccelerated()
{
return m_HwDecodeCfg != nullptr ||
(m_VideoDecoderCtx->codec->capabilities & AV_CODEC_CAP_HARDWARE) != 0;
(getAVCodecCapabilities(m_VideoDecoderCtx->codec) & AV_CODEC_CAP_HARDWARE) != 0;
}
bool FFmpegVideoDecoder::isAlwaysFullScreen()
@ -1165,6 +1165,22 @@ bool FFmpegVideoDecoder::isDecoderIgnored(const AVCodec *decoder)
return false;
}
int FFmpegVideoDecoder::getAVCodecCapabilities(const AVCodec *codec)
{
int caps = codec->capabilities;
// There are a bunch of out-of-tree OMX decoder implementations
// from various SBC manufacturers that all seem to forget to set
// AV_CODEC_CAP_HARDWARE (probably because the upstream OMX code
// also doesn't set it). Avoid a false decoder warning on startup
// by setting it ourselves.
if (QString::fromUtf8(codec->name).endsWith("_omx", Qt::CaseInsensitive)) {
caps |= AV_CODEC_CAP_HARDWARE;
}
return caps;
}
bool FFmpegVideoDecoder::tryInitializeHwAccelDecoder(PDECODER_PARAMETERS params, int pass, QSet<const AVCodec*>& terminallyFailedHardwareDecoders)
{
const AVCodec* decoder;
@ -1188,7 +1204,7 @@ bool FFmpegVideoDecoder::tryInitializeHwAccelDecoder(PDECODER_PARAMETERS params,
}
// Skip non-hwaccel hardware decoders
if (decoder->capabilities & AV_CODEC_CAP_HARDWARE) {
if (getAVCodecCapabilities(decoder) & AV_CODEC_CAP_HARDWARE) {
continue;
}
@ -1322,7 +1338,7 @@ bool FFmpegVideoDecoder::initialize(PDECODER_PARAMETERS params)
}
// Skip software/hybrid decoders and normal hwaccel decoders (which were handled in the loop above)
if (!(decoder->capabilities & AV_CODEC_CAP_HARDWARE)) {
if (!(getAVCodecCapabilities(decoder) & AV_CODEC_CAP_HARDWARE)) {
continue;
}
@ -1372,7 +1388,7 @@ bool FFmpegVideoDecoder::initialize(PDECODER_PARAMETERS params)
// hardware and software depending on whether an hwaccel is supplied.
// Instead, we tell tryInitializeRendererForUnknownDecoder() not to
// try hwaccel for this decoder.
if (decoder->capabilities & AV_CODEC_CAP_HARDWARE) {
if (getAVCodecCapabilities(decoder) & AV_CODEC_CAP_HARDWARE) {
continue;
}

4
app/streaming/video/ffmpeg.h
View File

@ -45,8 +45,12 @@ private:
bool createFrontendRenderer(PDECODER_PARAMETERS params, bool useAlternateFrontend);
static
bool isDecoderIgnored(const AVCodec* decoder);
static
int getAVCodecCapabilities(const AVCodec *codec);
bool tryInitializeHwAccelDecoder(PDECODER_PARAMETERS params,
int pass,
QSet<const AVCodec*>& terminallyFailedHardwareDecoders);