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[FFmpeg-devel] avformat/mxfdec: signal channel layouts using the new channel layout api

Message ID 20240308201359.3013-1-cus@passwd.hu
State New
Headers show
Series [FFmpeg-devel] avformat/mxfdec: signal channel layouts using the new channel layout api | expand

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Commit Message

Marton Balint March 8, 2024, 8:13 p.m. UTC
Signed-off-by: Marton Balint <cus@passwd.hu>
---
 libavformat/mxfdec.c | 129 ++++++++++++++++++-------------------------
 1 file changed, 53 insertions(+), 76 deletions(-)

Comments

James Almer March 8, 2024, 9:15 p.m. UTC | #1
On 3/8/2024 5:13 PM, Marton Balint wrote:
> Signed-off-by: Marton Balint <cus@passwd.hu>
> ---
>   libavformat/mxfdec.c | 129 ++++++++++++++++++-------------------------
>   1 file changed, 53 insertions(+), 76 deletions(-)
> 
> diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
> index 289db9833c..e2f4a22983 100644
> --- a/libavformat/mxfdec.c
> +++ b/libavformat/mxfdec.c
> @@ -188,8 +188,6 @@ typedef struct {
>       int body_sid;
>       MXFWrappingScheme wrapping;
>       int edit_units_per_packet; /* how many edit units to read at a time (PCM, ClipWrapped) */
> -    int require_reordering;
> -    int channel_ordering[FF_SANE_NB_CHANNELS];
>   } MXFTrack;
>   
>   typedef struct MXFDescriptor {
> @@ -1652,48 +1650,48 @@ static const MXFCodecUL mxf_data_essence_container_uls[] = {
>   
>   typedef struct MXFChannelOrderingUL {
>       UID uid;
> -    uint64_t layout_mask;
> +    enum AVChannel channel;
>       enum AVAudioServiceType service_type;
>   } MXFChannelOrderingUL;
>   
>   static const MXFChannelOrderingUL mxf_channel_ordering[] = {
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_LEFT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Left
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x02,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_RIGHT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Right
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x03,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Center
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x04,0x00,0x00,0x00,0x00 }, AV_CH_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Low Frequency Effects
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x05,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x06,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x07,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x08,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x09,0x00,0x00,0x00,0x00 }, AV_CH_BACK_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0a,0x00,0x00,0x00,0x00 }, AV_CH_BACK_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0b,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_LEFT_OF_CENTER,  AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Center
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0c,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_RIGHT_OF_CENTER, AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Center
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0d,0x00,0x00,0x00,0x00 }, AV_CH_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0e,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, // Hearing impaired audio channel
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0f,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED }, // Visually impaired narrative audio channel
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x03,0x00,0x00,0x00 }, AV_CH_STEREO_LEFT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Total
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x04,0x00,0x00,0x00 }, AV_CH_STEREO_RIGHT,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Total
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x01,0x00,0x00 }, AV_CH_TOP_FRONT_LEFT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x02,0x00,0x00 }, AV_CH_TOP_FRONT_RIGHT,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x03,0x00,0x00 }, AV_CH_TOP_FRONT_CENTER,      AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x04,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x05,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x06,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x07,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x08,0x00,0x00 }, AV_CH_TOP_BACK_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x09,0x00,0x00 }, AV_CH_TOP_BACK_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0a,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Top Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0b,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Top Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0c,0x00,0x00 }, AV_CH_TOP_CENTER,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Top Surround
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0d,0x00,0x00 }, AV_CH_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Front Subwoofer
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0e,0x00,0x00 }, AV_CH_LOW_FREQUENCY_2,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Front Subwoofer
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0f,0x00,0x00 }, AV_CH_TOP_BACK_CENTER,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear Height
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x10,0x00,0x00 }, AV_CH_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x11,0x00,0x00 }, AV_CH_BOTTOM_FRONT_LEFT,     AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Below
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x12,0x00,0x00 }, AV_CH_BOTTOM_FRONT_RIGHT,    AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Below
> -    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x13,0x00,0x00 }, AV_CH_BOTTOM_FRONT_CENTER,   AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Below
> -    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,                           AV_AUDIO_SERVICE_TYPE_NB },
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_LEFT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Left
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x02,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_RIGHT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Right
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x03,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Center
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x04,0x00,0x00,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Low Frequency Effects
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x05,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x06,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x07,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x08,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x09,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0a,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0b,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_LEFT_OF_CENTER,  AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Center
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0c,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Center
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0d,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0e,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, // Hearing impaired audio channel
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0f,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED }, // Visually impaired narrative audio channel
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x03,0x00,0x00,0x00 }, AV_CHAN_STEREO_LEFT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Total
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x04,0x00,0x00,0x00 }, AV_CHAN_STEREO_RIGHT,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Total
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x01,0x00,0x00 }, AV_CHAN_TOP_FRONT_LEFT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x02,0x00,0x00 }, AV_CHAN_TOP_FRONT_RIGHT,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x03,0x00,0x00 }, AV_CHAN_TOP_FRONT_CENTER,      AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x04,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x05,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x06,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x07,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x08,0x00,0x00 }, AV_CHAN_TOP_BACK_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x09,0x00,0x00 }, AV_CHAN_TOP_BACK_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0a,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Top Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0b,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Top Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0c,0x00,0x00 }, AV_CHAN_TOP_CENTER,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Top Surround
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0d,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Front Subwoofer
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0e,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY_2,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Front Subwoofer
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0f,0x00,0x00 }, AV_CHAN_TOP_BACK_CENTER,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear Height
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x10,0x00,0x00 }, AV_CHAN_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x11,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_LEFT,     AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Below
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x12,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_RIGHT,    AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Below
> +    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x13,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_CENTER,   AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Below
> +    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,                             AV_AUDIO_SERVICE_TYPE_NB },
>   };
>   
>   static MXFWrappingScheme mxf_get_wrapping_kind(UID *essence_container_ul)
> @@ -2503,12 +2501,12 @@ static void parse_ffv1_sub_descriptor(MXFContext *mxf, MXFTrack *source_track, M
>   
>   static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescriptor *descriptor, AVStream *st)
>   {
> -    uint64_t routing[FF_SANE_NB_CHANNELS] = {0};
> +    AVChannelLayout *ch_layout = &st->codecpar->ch_layout;
>       char *language = NULL;
>       int ambigous_language = 0;
>       enum AVAudioServiceType service_type = AV_AUDIO_SERVICE_TYPE_NB;
>       int ambigous_service_type = 0;
> -    int has_channel_label = 0;
> +    int ret;
>   
>       for (int i = 0; i < descriptor->sub_descriptors_count; i++) {
>           char *channel_language;
> @@ -2517,7 +2515,13 @@ static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
>           if (label == NULL)
>               continue;
>   
> -        has_channel_label = 1;
> +        if (ch_layout->order == AV_CHANNEL_ORDER_UNSPEC) {
> +            av_channel_layout_uninit(ch_layout);
> +            ret = av_channel_layout_custom_init(ch_layout, descriptor->channels);
> +            if (ret < 0)
> +                return ret;
> +        }
> +
>           for (const MXFChannelOrderingUL* channel_ordering = mxf_channel_ordering; channel_ordering->uid[0]; channel_ordering++) {
>               if (IS_KLV_KEY(channel_ordering->uid, label->mca_label_dictionary_id)) {
>                   int target_channel = label->mca_channel_id;
> @@ -2527,7 +2531,7 @@ static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
>                       av_log(mxf->fc, AV_LOG_ERROR, "AudioChannelLabelSubDescriptor has invalid MCA channel ID %d\n", target_channel);
>                       return AVERROR_INVALIDDATA;
>                   }
> -                routing[target_channel - 1] = channel_ordering->layout_mask;
> +                ch_layout->u.map[target_channel - 1].id = channel_ordering->channel;
>                   if (service_type == AV_AUDIO_SERVICE_TYPE_NB)
>                       service_type = channel_ordering->service_type;
>                   else if (service_type != channel_ordering->service_type)
> @@ -2575,38 +2579,11 @@ static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
>           *ast = service_type;
>       }
>   
> -    if (has_channel_label) {
> -        uint64_t channel_layout = 0;
> -        int ret;
> -
> -        for (int i = 0; i < descriptor->channels; i++) {
> -            if (!routing[i]) {
> -                av_log(mxf->fc, AV_LOG_WARNING, "Designation of audio channel %d in stream #%d is unknown or unsupported, "
> -                                                "falling back to unknown channel layout\n", st->index, i);
> -                return 0;
> -            }
> -            if (channel_layout & routing[i]) {
> -                char buf[32];
> -                av_channel_name(buf, sizeof(buf), routing[i]);
> -                av_log(mxf->fc, AV_LOG_WARNING, "%s audio channel is used multiple times in stream #%d, "
> -                                                "falling back to unknown channel layout\n",
> -                                                buf, st->index);
> -                return 0;
> -            }
> -            if (routing[i] < channel_layout) {
> -                av_log(mxf->fc, AV_LOG_WARNING, "stream #%d is not in in native channel order, "
> -                                                "falling back to unknown channel layout\n", st->index);
> -                return 0;
> -            }
> -            channel_layout |= routing[i];
> -        }
> -
> -        av_assert0(descriptor->channels == av_popcount64(channel_layout));
> -
> -        ret = av_channel_layout_from_mask(&st->codecpar->ch_layout, channel_layout);
> -        if (ret < 0)
> -            return ret;
> -    }
> +    ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_NATIVE, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
> +    if (ret == AVERROR(ENOSYS))
> +        ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_UNSPEC, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
> +    if (ret < 0 && ret != AVERROR(ENOSYS))
> +        return ret;
>   
>       return 0;
>   }

I'm not against this patch, but shouldn't we make sure for example that 
swr supports custom layouts first?
Marton Balint March 9, 2024, 2:18 a.m. UTC | #2
On Fri, 8 Mar 2024, James Almer wrote:

> On 3/8/2024 5:13 PM, Marton Balint wrote:
>>  Signed-off-by: Marton Balint <cus@passwd.hu>
>>  ---
>>    libavformat/mxfdec.c | 129 ++++++++++++++++++-------------------------
>>    1 file changed, 53 insertions(+), 76 deletions(-)
>>
>>  diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
>>  index 289db9833c..e2f4a22983 100644
>>  --- a/libavformat/mxfdec.c
>>  +++ b/libavformat/mxfdec.c

[...]

>>  +    ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_NATIVE,
>>  AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
>>  +    if (ret == AVERROR(ENOSYS))
>>  +        ret = av_channel_layout_retype(ch_layout,
>>  AV_CHANNEL_ORDER_UNSPEC, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
>>  +    if (ret < 0 && ret != AVERROR(ENOSYS))
>>  +        return ret;
>>
>>        return 0;
>>    }
>
> I'm not against this patch, but shouldn't we make sure for example that swr 
> supports custom layouts first?

I don't really know what is the best approach here. Sure, some stuff will 
break if it encounters a custom layout. But nobody will fix it, if no 
custom layouts are ever encountered...

Regards,
Marton
Anton Khirnov March 9, 2024, 6:27 a.m. UTC | #3
Quoting Marton Balint (2024-03-08 21:13:59)
> +    ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_NATIVE, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
> +    if (ret == AVERROR(ENOSYS))
> +        ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_UNSPEC, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);

It might be useful to have an av_channel_layout_retype() flag (something
like AV_CHANNEL_LAYOUT_RETYPE_FLAG_CANONICALISE) that converts to the
simplest possible representation (not saying you need to add it right
now, it's just a note for future consideration).
Tomas Härdin March 14, 2024, 1:24 p.m. UTC | #4
fre 2024-03-08 klockan 21:13 +0100 skrev Marton Balint:
> Signed-off-by: Marton Balint <cus@passwd.hu>
> ---
>  libavformat/mxfdec.c | 129 ++++++++++++++++++-----------------------
> --
>  1 file changed, 53 insertions(+), 76 deletions(-)

No idea how the new API works, but it's less code which seems nice.

Changing AV_CH_* to AV_CHAN_* seems like needless busywork. But that
has little to do with this patch.

No objections from my end.

/Tomas
Marton Balint March 16, 2024, 6:59 p.m. UTC | #5
On Thu, 14 Mar 2024, Tomas Härdin wrote:

> fre 2024-03-08 klockan 21:13 +0100 skrev Marton Balint:
>> Signed-off-by: Marton Balint <cus@passwd.hu>
>> ---
>>  libavformat/mxfdec.c | 129 ++++++++++++++++++-----------------------
>> --
>>  1 file changed, 53 insertions(+), 76 deletions(-)
>
> No idea how the new API works, but it's less code which seems nice.
>
> Changing AV_CH_* to AV_CHAN_* seems like needless busywork. But that
> has little to do with this patch.
>
> No objections from my end.

Ok, will apply.

Thanks,
Marton
diff mbox series

Patch

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 289db9833c..e2f4a22983 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -188,8 +188,6 @@  typedef struct {
     int body_sid;
     MXFWrappingScheme wrapping;
     int edit_units_per_packet; /* how many edit units to read at a time (PCM, ClipWrapped) */
-    int require_reordering;
-    int channel_ordering[FF_SANE_NB_CHANNELS];
 } MXFTrack;
 
 typedef struct MXFDescriptor {
@@ -1652,48 +1650,48 @@  static const MXFCodecUL mxf_data_essence_container_uls[] = {
 
 typedef struct MXFChannelOrderingUL {
     UID uid;
-    uint64_t layout_mask;
+    enum AVChannel channel;
     enum AVAudioServiceType service_type;
 } MXFChannelOrderingUL;
 
 static const MXFChannelOrderingUL mxf_channel_ordering[] = {
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_LEFT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Left
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x02,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_RIGHT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Right
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x03,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Center
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x04,0x00,0x00,0x00,0x00 }, AV_CH_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Low Frequency Effects
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x05,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x06,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x07,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x08,0x00,0x00,0x00,0x00 }, AV_CH_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x09,0x00,0x00,0x00,0x00 }, AV_CH_BACK_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0a,0x00,0x00,0x00,0x00 }, AV_CH_BACK_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0b,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_LEFT_OF_CENTER,  AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Center
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0c,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_RIGHT_OF_CENTER, AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Center
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0d,0x00,0x00,0x00,0x00 }, AV_CH_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0e,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, // Hearing impaired audio channel
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0f,0x00,0x00,0x00,0x00 }, AV_CH_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED }, // Visually impaired narrative audio channel
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x03,0x00,0x00,0x00 }, AV_CH_STEREO_LEFT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Total
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x04,0x00,0x00,0x00 }, AV_CH_STEREO_RIGHT,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Total
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x01,0x00,0x00 }, AV_CH_TOP_FRONT_LEFT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x02,0x00,0x00 }, AV_CH_TOP_FRONT_RIGHT,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x03,0x00,0x00 }, AV_CH_TOP_FRONT_CENTER,      AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x04,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x05,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x06,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x07,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x08,0x00,0x00 }, AV_CH_TOP_BACK_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x09,0x00,0x00 }, AV_CH_TOP_BACK_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0a,0x00,0x00 }, AV_CH_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Top Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0b,0x00,0x00 }, AV_CH_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Top Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0c,0x00,0x00 }, AV_CH_TOP_CENTER,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Top Surround
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0d,0x00,0x00 }, AV_CH_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Front Subwoofer
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0e,0x00,0x00 }, AV_CH_LOW_FREQUENCY_2,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Front Subwoofer
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0f,0x00,0x00 }, AV_CH_TOP_BACK_CENTER,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear Height
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x10,0x00,0x00 }, AV_CH_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x11,0x00,0x00 }, AV_CH_BOTTOM_FRONT_LEFT,     AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Below
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x12,0x00,0x00 }, AV_CH_BOTTOM_FRONT_RIGHT,    AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Below
-    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x13,0x00,0x00 }, AV_CH_BOTTOM_FRONT_CENTER,   AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Below
-    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,                           AV_AUDIO_SERVICE_TYPE_NB },
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_LEFT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Left
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x02,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_RIGHT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Right
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x03,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Center
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x04,0x00,0x00,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Low Frequency Effects
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x05,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x06,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x07,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x08,0x00,0x00,0x00,0x00 }, AV_CHAN_SIDE_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x09,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_LEFT,             AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0a,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_RIGHT,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0b,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_LEFT_OF_CENTER,  AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Center
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0c,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Center
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0d,0x00,0x00,0x00,0x00 }, AV_CHAN_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0e,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, // Hearing impaired audio channel
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x0f,0x00,0x00,0x00,0x00 }, AV_CHAN_FRONT_CENTER,          AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED }, // Visually impaired narrative audio channel
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x03,0x00,0x00,0x00 }, AV_CHAN_STEREO_LEFT,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Total
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x20,0x04,0x00,0x00,0x00 }, AV_CHAN_STEREO_RIGHT,          AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Total
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x01,0x00,0x00 }, AV_CHAN_TOP_FRONT_LEFT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x02,0x00,0x00 }, AV_CHAN_TOP_FRONT_RIGHT,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x03,0x00,0x00 }, AV_CHAN_TOP_FRONT_CENTER,      AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x04,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x05,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x06,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Side Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x07,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Side Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x08,0x00,0x00 }, AV_CHAN_TOP_BACK_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Rear Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x09,0x00,0x00 }, AV_CHAN_TOP_BACK_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Rear Surround Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0a,0x00,0x00 }, AV_CHAN_TOP_SIDE_LEFT,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Top Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0b,0x00,0x00 }, AV_CHAN_TOP_SIDE_RIGHT,        AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Top Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0c,0x00,0x00 }, AV_CHAN_TOP_CENTER,            AV_AUDIO_SERVICE_TYPE_MAIN }, // Top Surround
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0d,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY,         AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Front Subwoofer
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0e,0x00,0x00 }, AV_CHAN_LOW_FREQUENCY_2,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Front Subwoofer
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x0f,0x00,0x00 }, AV_CHAN_TOP_BACK_CENTER,       AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear Height
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x10,0x00,0x00 }, AV_CHAN_BACK_CENTER,           AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Rear
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x11,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_LEFT,     AV_AUDIO_SERVICE_TYPE_MAIN }, // Left Below
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x12,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_RIGHT,    AV_AUDIO_SERVICE_TYPE_MAIN }, // Right Below
+    { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0d,0x03,0x02,0x01,0x30,0x01,0x13,0x00,0x00 }, AV_CHAN_BOTTOM_FRONT_CENTER,   AV_AUDIO_SERVICE_TYPE_MAIN }, // Center Below
+    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,                             AV_AUDIO_SERVICE_TYPE_NB },
 };
 
 static MXFWrappingScheme mxf_get_wrapping_kind(UID *essence_container_ul)
@@ -2503,12 +2501,12 @@  static void parse_ffv1_sub_descriptor(MXFContext *mxf, MXFTrack *source_track, M
 
 static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescriptor *descriptor, AVStream *st)
 {
-    uint64_t routing[FF_SANE_NB_CHANNELS] = {0};
+    AVChannelLayout *ch_layout = &st->codecpar->ch_layout;
     char *language = NULL;
     int ambigous_language = 0;
     enum AVAudioServiceType service_type = AV_AUDIO_SERVICE_TYPE_NB;
     int ambigous_service_type = 0;
-    int has_channel_label = 0;
+    int ret;
 
     for (int i = 0; i < descriptor->sub_descriptors_count; i++) {
         char *channel_language;
@@ -2517,7 +2515,13 @@  static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
         if (label == NULL)
             continue;
 
-        has_channel_label = 1;
+        if (ch_layout->order == AV_CHANNEL_ORDER_UNSPEC) {
+            av_channel_layout_uninit(ch_layout);
+            ret = av_channel_layout_custom_init(ch_layout, descriptor->channels);
+            if (ret < 0)
+                return ret;
+        }
+
         for (const MXFChannelOrderingUL* channel_ordering = mxf_channel_ordering; channel_ordering->uid[0]; channel_ordering++) {
             if (IS_KLV_KEY(channel_ordering->uid, label->mca_label_dictionary_id)) {
                 int target_channel = label->mca_channel_id;
@@ -2527,7 +2531,7 @@  static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
                     av_log(mxf->fc, AV_LOG_ERROR, "AudioChannelLabelSubDescriptor has invalid MCA channel ID %d\n", target_channel);
                     return AVERROR_INVALIDDATA;
                 }
-                routing[target_channel - 1] = channel_ordering->layout_mask;
+                ch_layout->u.map[target_channel - 1].id = channel_ordering->channel;
                 if (service_type == AV_AUDIO_SERVICE_TYPE_NB)
                     service_type = channel_ordering->service_type;
                 else if (service_type != channel_ordering->service_type)
@@ -2575,38 +2579,11 @@  static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
         *ast = service_type;
     }
 
-    if (has_channel_label) {
-        uint64_t channel_layout = 0;
-        int ret;
-
-        for (int i = 0; i < descriptor->channels; i++) {
-            if (!routing[i]) {
-                av_log(mxf->fc, AV_LOG_WARNING, "Designation of audio channel %d in stream #%d is unknown or unsupported, "
-                                                "falling back to unknown channel layout\n", st->index, i);
-                return 0;
-            }
-            if (channel_layout & routing[i]) {
-                char buf[32];
-                av_channel_name(buf, sizeof(buf), routing[i]);
-                av_log(mxf->fc, AV_LOG_WARNING, "%s audio channel is used multiple times in stream #%d, "
-                                                "falling back to unknown channel layout\n",
-                                                buf, st->index);
-                return 0;
-            }
-            if (routing[i] < channel_layout) {
-                av_log(mxf->fc, AV_LOG_WARNING, "stream #%d is not in in native channel order, "
-                                                "falling back to unknown channel layout\n", st->index);
-                return 0;
-            }
-            channel_layout |= routing[i];
-        }
-
-        av_assert0(descriptor->channels == av_popcount64(channel_layout));
-
-        ret = av_channel_layout_from_mask(&st->codecpar->ch_layout, channel_layout);
-        if (ret < 0)
-            return ret;
-    }
+    ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_NATIVE, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
+    if (ret == AVERROR(ENOSYS))
+        ret = av_channel_layout_retype(ch_layout, AV_CHANNEL_ORDER_UNSPEC, AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS);
+    if (ret < 0 && ret != AVERROR(ENOSYS))
+        return ret;
 
     return 0;
 }