I changed the Audio codec to WMAV2, and left the rest of the AudioCodec
settings the same Now the program crashes at this line in the QtMel code:
int outSize = avcodec_encode_audio(m_audioStream->codec,
m_audioOutputBuffer, m_audioOutputBufferSize, (short *)samples.data());
In debug the error staates "Stopped in thread 2 by:Exception at
0x66364c62, cod:0xc0000005: write access violation at:0x1, flags=0x0
(first chance).
I suspect I don't have the audio settings set write, but I am not sure
how to set them for WMAV2.
On 6/17/2015 4:30 PM, Kevin J. Brooks wrote:
I am setting the AudioCodec to MP3, I am using the pre-built
libraries the code I have the causes the issue is from the code for
the QtMEL library. What I am posting here is the Audio Codec setup
for the QtMel object. I hope it helps.
BTW I am using H264 for the Video Codec. If I record video only, it
does work, it is only if I try to add sound that it fails.
CR2CAudioFormat format;
format.setChannelCount(2);
format.setSampleRate(44100);
format.setFormat(CR2CAudioFormat::SignedInt16);
I really don't have a preference for the codec, I just need to know
how to set it up properly. I am totally new at recording video and audio.
On 6/17/2015 1:08 AM, Taha Ansari wrote:
On Wed, Jun 17, 2015 at 2:17 AM, Gonzalo Garramuno
<[email protected] <mailto:[email protected]>> wrote:
On 16/06/15 09:06, Kevin J. Brooks wrote:
Yes I am. For more information, I am developing on Windoze 7.
avcodec_open2 can fail if you lack the library for the codec you
want to decode or encode. For example, libx264. The libraries
in ffmpeg.zeranoe.com <http://ffmpeg.zeranoe.com> contain all
codecs, but they are GPL only. You should try them first and see
if the problem goes away. If it does, you know you have to
compile ffmpeg with different flags.
Since he mentions Windows 7, I assume he is using pre-built packages
from zeranoe site (as you mention). These builds contain proprietary
codec(s) like x264 (non GPL).
@Kevin: maybe you have some bare minimum code with you that can
produce this error, which people can have a look?
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