>________________________________
> From: JULIAN GARDNER <joo...@btinternet.com>
>To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
>Sent: Wednesday, 24 September 2014, 14:48
>Subject: Re: [FFmpeg-devel] Regression problem
>
>
>> From: JULIAN GARDNER <joo...@btinternet.com>
>
>>To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
>>Sent: Tuesday, 23 September 2014, 13:37
>>Subject: Re: [FFmpeg-devel] Regression problem
>>
>>
>>----- Original Message -----
>>> From: Michael Niedermayer <michae...@gmx.at>
>>> To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
>>> Cc:
>>> Sent: Tuesday, 23 September 2014, 12:24
>>> Subject: Re: [FFmpeg-devel] Regression problem
>>>
>>> On Tue, Sep 23, 2014 at 09:27:57AM +0100, JULIAN GARDNER wrote:
>>>> I seem to be having problems using the ff_load_image routine, with a git
>>> pulled build from the beginning of the week, which used to work but is now
>>> giving me "failed to decode image file", and this is on a png that has
>>> been in use for over a year,
>>>>
>>>> The code is is based on VSRC_TESTSRC with an addition call to this code
>>>>
>>>> static int load_image(uint8_t **image_data, int *w, int *h, int *stride,
>>>> const char *filename, void *log_ctx)
>>>> {
>>>> int ret;
>>>> enum AVPixelFormat pix_fmt;
>>>> uint8_t *src_data[4], *dst_data[4];
>>>> int src_linesize[4], dst_linesize[4];
>>>>
>>>> av_log( NULL, AV_LOG_WARNING, "load_image %s\n",
>>> filename);
>>>>
>>>> /* load image from file */
>>>> if ((ret = ff_load_image(src_data, src_linesize, w, h, &pix_fmt,
>>> filename, log_ctx)) < 0)
>>>> return ret;
>>>>
>>>> if ((ret = ff_scale_image(dst_data, dst_linesize, *w, *h,
>>>>PIXEL_FORMAT,
>>>> src_data, src_linesize, *w, *h, pix_fmt,
>>>> log_ctx)) < 0)
>>>> goto end;
>>>>
>>>> *stride = dst_linesize[0];
>>>>
>>>> /* copy image_data to a newly allocated array */
>>>> *image_data = av_malloc(*stride * *h);
>>>> if (!*image_data)
>>>> ret = AVERROR(ENOMEM);
>>>> av_image_copy_plane(*image_data, *stride, dst_data[0],
>>>>dst_linesize[0],
>>> *w*4, *h);
>>>> end:
>>>> av_free(src_data[0]);
>>>> av_free(dst_data[0]);
>>>>
>>>> return ret;
>>>> }
>>>>
>>>>
>>>> This used to work but now as I have said give the error message about not
>>> being able to decode
>>>>
>>>> There is nothing in the log, even with as "-loglevel debug"
>>>>
>>>> load_image /home/encoder/images/Logo640x360.png
>>>> [AVIOContext @ 0x7fdcf8002580] Statistics: 3713 bytes read, 0 seeks
>>>> [libx264 @ 0x2c63320] frame= 322 QP=12.00 NAL=2 Slice:P Poc:144 I:15
>>> P:524 SKIP:381 size=14355 bytes
>>>> [Parsed_osd_0 @ 0x2c3b200] Failed to decode image from file
>>>> [Parsed_osd_0 @ 0x2c3b200] Error loading image file
>>> '/home/encoder/images/Logo640x360.png'
>>>
>>> how can this be reproduced ?
>>> can you share the png file ?
>>>
>>
>>It happens with any png, i just created a simple 100x100 png in gimp and this
>>also fails
>>
>>joolz
>>
>
>
>Started debgging the code and found that the return from the pngdec.c
>decode_frame is ok, data decoded and got_packet set to 1, image size if
>correct.
>
>So looks like it is somewhere further down the chain.
>
just noticed someone else has posted what seems to me to be the same regression
bug,
"unable to decode png file."
>From my debugging my problem also fails after the file has been decoded
>correctly.
joolz
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