[FFmpeg-devel] [PATCH v2] avformat/riffenc: don't force WAVEFORMATEXTENSIBLE for flt/dbl LPCM

Gyan Doshi ffmpeg at gyani.pro
Tue Dec 26 05:55:50 EET 2023


Plan to push in 48h, barring objections.

On 2023-12-21 03:31 pm, Gyan Doshi wrote:
> 2c2a167ca7 forced WAVEFORMATEXTENSIBLE for all LPCM streams with greater
> than 16 bits per sample. However, WAVEFORMATEX allows IEEE Float samples
> or any depth where raw depth == coded depth, see Remarks section at
> https://learn.microsoft.com/en-us/windows/win32/api/mmreg/ns-mmreg-waveformatex
> and samples M1F1-float32-AFsp, M1F1-float64-AFsp at
> https://www.mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/Samples.html
>
> There are hardware devices and likely software players requiring float samples
> that fail to qualify files with WAVEFORMATEXTENSIBLE headers.
> ---
> Patchwork shows 2 tests failing that apparently weren't carried out locally.
>
>   libavformat/riffenc.c           |  2 +-
>   tests/ref/acodec/pcm-f32le      |  4 +--
>   tests/ref/acodec/pcm-f64le      |  4 +--
>   tests/ref/seek/acodec-pcm-f32le | 54 ++++++++++++++++-----------------
>   tests/ref/seek/acodec-pcm-f64le | 54 ++++++++++++++++-----------------
>   5 files changed, 59 insertions(+), 59 deletions(-)
>
> diff --git a/libavformat/riffenc.c b/libavformat/riffenc.c
> index 3325419b94..8accb69541 100644
> --- a/libavformat/riffenc.c
> +++ b/libavformat/riffenc.c
> @@ -81,7 +81,7 @@ int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb,
>                               av_channel_layout_compare(&par->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO)) ||
>                              par->sample_rate > 48000 ||
>                              par->codec_id == AV_CODEC_ID_EAC3 || par->codec_id == AV_CODEC_ID_DFPWM ||
> -                           av_get_bits_per_sample(par->codec_id) > 16;
> +                           (av_get_bits_per_sample(par->codec_id) > 16 && par->codec_tag != 0x0003);
>   
>       if (waveformatextensible)
>           avio_wl16(pb, 0xfffe);
> diff --git a/tests/ref/acodec/pcm-f32le b/tests/ref/acodec/pcm-f32le
> index c0fdd70cd2..c63a2c4b70 100644
> --- a/tests/ref/acodec/pcm-f32le
> +++ b/tests/ref/acodec/pcm-f32le
> @@ -1,4 +1,4 @@
> -653d82a64b7bd96ac193e105e9f92d4c *tests/data/fate/acodec-pcm-f32le.wav
> -2116880 tests/data/fate/acodec-pcm-f32le.wav
> +03ae40a19deacaca6e0c4ec08dd35956 *tests/data/fate/acodec-pcm-f32le.wav
> +2116858 tests/data/fate/acodec-pcm-f32le.wav
>   95e54b261530a1bcf6de6fe3b21dc5f6 *tests/data/fate/acodec-pcm-f32le.out.wav
>   stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  1058400/  1058400
> diff --git a/tests/ref/acodec/pcm-f64le b/tests/ref/acodec/pcm-f64le
> index 5c90e7bbbd..894d593ac1 100644
> --- a/tests/ref/acodec/pcm-f64le
> +++ b/tests/ref/acodec/pcm-f64le
> @@ -1,4 +1,4 @@
> -48b4cd378f47a50dc902aa03cc8280ed *tests/data/fate/acodec-pcm-f64le.wav
> -4233680 tests/data/fate/acodec-pcm-f64le.wav
> +69ffdb079600c53a00c5b0119b586a98 *tests/data/fate/acodec-pcm-f64le.wav
> +4233658 tests/data/fate/acodec-pcm-f64le.wav
>   95e54b261530a1bcf6de6fe3b21dc5f6 *tests/data/fate/acodec-pcm-f64le.out.wav
>   stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  1058400/  1058400
> diff --git a/tests/ref/seek/acodec-pcm-f32le b/tests/ref/seek/acodec-pcm-f32le
> index 335a8a0729..0b6bb33bcb 100644
> --- a/tests/ref/seek/acodec-pcm-f32le
> +++ b/tests/ref/seek/acodec-pcm-f32le
> @@ -1,53 +1,53 @@
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts:-1.000000
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.894167
> -ret: 0         st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos: 668344 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos: 668322 size:  4096
>   ret: 0         st: 0 flags:0  ts: 0.788345
> -ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 278208 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 278186 size:  4096
>   ret: 0         st: 0 flags:1  ts:-0.317506
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts: 2.576668
> -ret: 0         st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos: 909128 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos: 909106 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.470835
> -ret: 0         st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 518992 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos: 518970 size:  4096
>   ret: 0         st: 0 flags:0  ts: 0.365011
> -ret: 0         st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 128856 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 128834 size:  4096
>   ret: 0         st: 0 flags:1  ts:-0.740839
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts: 2.153336
> -ret: 0         st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos: 759776 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos: 759754 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.047503
> -ret: 0         st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 369640 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 369618 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.058322
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 2.835828
> -ret: 0         st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:1000560 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:1000538 size:  4096
>   ret: 0         st:-1 flags:0  ts: 1.730004
> -ret: 0         st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos: 610424 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos: 610402 size:  4096
>   ret: 0         st:-1 flags:1  ts: 0.624171
> -ret: 0         st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 220288 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 220266 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.481655
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 2.412494
> -ret: 0         st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos: 851208 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos: 851186 size:  4096
>   ret: 0         st:-1 flags:0  ts: 1.306672
> -ret: 0         st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 461072 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 461050 size:  4096
>   ret: 0         st:-1 flags:1  ts: 0.200839
> -ret: 0         st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos:  70936 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos:  70914 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.904989
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 1.989184
> -ret: 0         st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos: 701864 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos: 701842 size:  4096
>   ret: 0         st:-1 flags:0  ts: 0.883340
> -ret: 0         st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 311720 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 311698 size:  4096
>   ret: 0         st:-1 flags:1  ts:-0.222493
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:0  ts: 2.671678
> -ret: 0         st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos: 942648 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos: 942626 size:  4096
>   ret: 0         st: 0 flags:1  ts: 1.565850
> -ret: 0         st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 552512 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos: 552490 size:  4096
>   ret: 0         st:-1 flags:0  ts: 0.460008
> -ret: 0         st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 162368 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 162346 size:  4096
>   ret: 0         st:-1 flags:1  ts:-0.645825
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
> diff --git a/tests/ref/seek/acodec-pcm-f64le b/tests/ref/seek/acodec-pcm-f64le
> index 41eeda0c77..1366de3f65 100644
> --- a/tests/ref/seek/acodec-pcm-f64le
> +++ b/tests/ref/seek/acodec-pcm-f64le
> @@ -1,53 +1,53 @@
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts:-1.000000
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.894167
> -ret: 0         st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos:1336608 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.894172 pts: 1.894172 pos:1336586 size:  4096
>   ret: 0         st: 0 flags:0  ts: 0.788345
> -ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 556336 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos: 556314 size:  4096
>   ret: 0         st: 0 flags:1  ts:-0.317506
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts: 2.576668
> -ret: 0         st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos:1818176 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.576667 pts: 2.576667 pos:1818154 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.470835
> -ret: 0         st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos:1037904 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.470839 pts: 1.470839 pos:1037882 size:  4096
>   ret: 0         st: 0 flags:0  ts: 0.365011
> -ret: 0         st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 257632 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.365011 pts: 0.365011 pos: 257610 size:  4096
>   ret: 0         st: 0 flags:1  ts:-0.740839
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st:-1 flags:0  ts: 2.153336
> -ret: 0         st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos:1519472 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.153333 pts: 2.153333 pos:1519450 size:  4096
>   ret: 0         st:-1 flags:1  ts: 1.047503
> -ret: 0         st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 739200 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.047506 pts: 1.047506 pos: 739178 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.058322
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 2.835828
> -ret: 0         st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:2001040 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.835828 pts: 2.835828 pos:2001018 size:  4096
>   ret: 0         st:-1 flags:0  ts: 1.730004
> -ret: 0         st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos:1220768 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.730000 pts: 1.730000 pos:1220746 size:  4096
>   ret: 0         st:-1 flags:1  ts: 0.624171
> -ret: 0         st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 440496 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.624172 pts: 0.624172 pos: 440474 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.481655
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 2.412494
> -ret: 0         st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos:1702336 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.412494 pts: 2.412494 pos:1702314 size:  4096
>   ret: 0         st:-1 flags:0  ts: 1.306672
> -ret: 0         st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 922064 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.306667 pts: 1.306667 pos: 922042 size:  4096
>   ret: 0         st:-1 flags:1  ts: 0.200839
> -ret: 0         st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 141792 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.200839 pts: 0.200839 pos: 141770 size:  4096
>   ret: 0         st: 0 flags:0  ts:-0.904989
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:1  ts: 1.989184
> -ret: 0         st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos:1403648 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.989184 pts: 1.989184 pos:1403626 size:  4096
>   ret: 0         st:-1 flags:0  ts: 0.883340
> -ret: 0         st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 623360 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos: 623338 size:  4096
>   ret: 0         st:-1 flags:1  ts:-0.222493
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096
>   ret: 0         st: 0 flags:0  ts: 2.671678
> -ret: 0         st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos:1885216 size:  4096
> +ret: 0         st: 0 flags:1 dts: 2.671678 pts: 2.671678 pos:1885194 size:  4096
>   ret: 0         st: 0 flags:1  ts: 1.565850
> -ret: 0         st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos:1104944 size:  4096
> +ret: 0         st: 0 flags:1 dts: 1.565850 pts: 1.565850 pos:1104922 size:  4096
>   ret: 0         st:-1 flags:0  ts: 0.460008
> -ret: 0         st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 324656 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos: 324634 size:  4096
>   ret: 0         st:-1 flags:1  ts:-0.645825
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     80 size:  4096
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:     58 size:  4096



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