static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)

{

    int size = 0;

    const uint8_t *data;

    uint32_t flags;



    if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))

        return;



    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);

    if (!data || size < 4)

        return;

    flags = bytestream_get_le32(&data);

    size -= 4;

    if (size < 4) /* Required for any of the changes */

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {

        avctx->channels = bytestream_get_le32(&data);

        size -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {

        if (size < 8)

            return;

        avctx->channel_layout = bytestream_get_le64(&data);

        size -= 8;

    }

    if (size < 4)

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {

        avctx->sample_rate = bytestream_get_le32(&data);

        size -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {

        if (size < 8)

            return;

        avctx->width  = bytestream_get_le32(&data);

        avctx->height = bytestream_get_le32(&data);

        avcodec_set_dimensions(avctx, avctx->width, avctx->height);

        size -= 8;

    }

}

static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)

{

    int size = 0;

    const uint8_t *data;

    uint32_t flags;



    if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))

        return;



    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);

    if (!data || size < 4)

        return;

    flags = bytestream_get_le32(&data);

    size -= 4;

    if (size < 4) 

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {

        avctx->channels = bytestream_get_le32(&data);

        size -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {

        if (size < 8)

            return;

        avctx->channel_layout = bytestream_get_le64(&data);

        size -= 8;

    }

    if (size < 4)

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {

        avctx->sample_rate = bytestream_get_le32(&data);

        size -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {

        if (size < 8)

            return;

        avctx->width  = bytestream_get_le32(&data);

        avctx->height = bytestream_get_le32(&data);

        avcodec_set_dimensions(avctx, avctx->width, avctx->height);

        size -= 8;

    }

}

static void FUNC_0(AVCodecContext *VAR_0, AVPacket *VAR_1)

{

    int VAR_2 = 0;

    const uint8_t *VAR_3;

    uint32_t flags;



    if (!(VAR_0->codec->capabilities & CODEC_CAP_PARAM_CHANGE))

        return;



    VAR_3 = av_packet_get_side_data(VAR_1, AV_PKT_DATA_PARAM_CHANGE, &VAR_2);

    if (!VAR_3 || VAR_2 < 4)

        return;

    flags = bytestream_get_le32(&VAR_3);

    VAR_2 -= 4;

    if (VAR_2 < 4) 

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {

        VAR_0->channels = bytestream_get_le32(&VAR_3);

        VAR_2 -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {

        if (VAR_2 < 8)

            return;

        VAR_0->channel_layout = bytestream_get_le64(&VAR_3);

        VAR_2 -= 8;

    }

    if (VAR_2 < 4)

        return;

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {

        VAR_0->sample_rate = bytestream_get_le32(&VAR_3);

        VAR_2 -= 4;

    }

    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {

        if (VAR_2 < 8)

            return;

        VAR_0->width  = bytestream_get_le32(&VAR_3);

        VAR_0->height = bytestream_get_le32(&VAR_3);

        avcodec_set_dimensions(VAR_0, VAR_0->width, VAR_0->height);

        VAR_2 -= 8;

    }

}

static void FUNC_0(AVCodecContext *VAR_0, AVPacket *VAR_1)
{ int VAR_2 = 0; const uint8_t *VAR_3; uint32_t flags; if (!(VAR_0->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
return; VAR_3 = av_packet_get_side_data(VAR_1, AV_PKT_DATA_PARAM_CHANGE, &VAR_2); if (!VAR_3 || VAR_2 < 4)
return; flags = bytestream_get_le32(&VAR_3); VAR_2 -= 4; if (VAR_2 < 4)
return; if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { VAR_0->channels = bytestream_get_le32(&VAR_3); VAR_2 -= 4; } if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { if (VAR_2 < 8)
return; VAR_0->channel_layout = bytestream_get_le64(&VAR_3); VAR_2 -= 8; } if (VAR_2 < 4)
return; if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { VAR_0->sample_rate = bytestream_get_le32(&VAR_3); VAR_2 -= 4; } if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { if (VAR_2 < 8)
return; VAR_0->width  = bytestream_get_le32(&VAR_3); VAR_0->height = bytestream_get_le32(&VAR_3); avcodec_set_dimensions(VAR_0, VAR_0->width, VAR_0->height); VAR_2 -= 8; } }