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* [FFmpeg-devel] vcodec_open2 error: Internal bug, should not have happened
@ 2023-07-10  7:21 =?gb18030?B?zP2jrMzssd+1xLjo?=
  0 siblings, 0 replies; only message in thread
From: =?gb18030?B?zP2jrMzssd+1xLjo?= @ 2023-07-10  7:21 UTC (permalink / raw)
  To: =?gb18030?B?ZmZtcGVnLWRldmVs?=

I am trying to implement the OpenMax IL Video Decoder on ffmpeg. But I meet some problems. When I use the codec with ffmpeg on Chrome by force, it raised a error of bug
ffmpeg_video_decoder.cc(491)] avcodec_open2 error: Internal bug, should not have happened
I 'm not familiar with the version of ffmpeg in the last serveral years. My codec can run success when using 
./ffmpeg -c:v h264_omxcodec -i test1.mp4 output_video.mp4
and I haven't find out how to enable logging of ffmpeg on Chrome(I don't know why av_log_set_callback() is useless when I used it),
so Is there anyone can give me some advices?


Thx a lot.


The FFCodec is used as following: 


#define OFFSET(x) offsetof(OMXCodecDecoderContext, x)
#define VDE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define VE  AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define VD  AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM






static const AVCodecHWConfigInternal *const omx_hw_configs[] = {
    &(const AVCodecHWConfigInternal) {
        .public          = {
            .pix_fmt     = AV_PIX_FMT_NV12,
            .methods     = AV_CODEC_HW_CONFIG_METHOD_AD_HOC |
                           AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX,
            .device_type = AV_HWDEVICE_TYPE_OMX,
        },
        .hwaccel         = NULL,
    },
    NULL
};




static const AVOption ff_omxcodec_vdec_options[] = {
    { "delay_flush", "Delay flush until hw output buffers are returned to the decoder",
                     OFFSET(delay_flush), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VD },
    { NULL }
};


#define DECLARE_OMX_VCLASS(short_name)                          \
static const AVClass ff_##short_name##_omxcodec_dec_class = {   \
    .class_name = #short_name "_libomxh264",                    \
    .item_name  = av_default_item_name,                         \
    .option     = ff_omxcodec_vdec_options,                     \
    .version    = LIBAVUTIL_VERSION_INT,                        \
};



#define DECLARE_OMX_VDEC(short_name, full_name, codec_id, bsf)                                 \
DECLARE_OMX_VCLASS(short_name)                                                                 \
const FFCodec ff_ ## short_name ## _omx_decoder = {                                            \
    .p.name         = #short_name "_omxcodec",                                                 \
    CODEC_LONG_NAME(full_name " OpenMAX IL decoder"),                                          \
    .p.type         = AVMEDIA_TYPE_VIDEO,                                                      \
    .p.id           = codec_id,                                                                \
    .p.priv_class   = &ff_##short_name##_omxcodec_dec_class,                                   \
    .priv_data_size = sizeof(OMXCodecDecoderContext),                                          \
    .init           = omx_decode_init,                                                         \
    FF_CODEC_DECODE_CB(omx_decode_frame),                                                      \
    .close          = omx_decode_end,                                                          \
    .flush          = omx_decode_flush,                                                        \
    .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING ,                        \
    .caps_internal  = FF_CODEC_CAP_NOT_INIT_THREADSAFE |                                       \
                      FF_CODEC_CAP_SETS_PKT_DTS,                                               \
    .bsfs           = bsf,                                                                     \    
    .p.wrapper_name = "omxcodec",                                                              \
};  



DECLARE_OMX_VDEC(h264,  "H.264", AV_CODEC_ID_H264, "h264_mp4toannexb")
DECLARE_OMX_VDEC(hevc,  "H.265", AV_CODEC_ID_HEVC, "hevc_mp4toannexb")
DECLARE_OMX_VDEC(mpeg4, "MPEG-4", AV_CODEC_ID_MPEG4, NULL)








 




 
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