On Wed, Oct 09, 2013 at 10:41:13PM +0200, Anton Khirnov wrote:
> --- /dev/null
> +++ b/doc/examples/mp3_aac.c
> @@ -0,0 +1,722 @@
> +/**
> + * Initialize a temporary storage for the specified number of audio samples.
> + * The conversion requires temporary storage due to the different format.
> + * The number of audio samples to be allocated is specified in frame_size.
> + */
> +static int init_converted_samples(uint8_t ***converted_input_samples,
> + AVCodecContext *output_codec_context,
> + int frame_size)
> +{
> + int error;
> +
> + /**
> + * Allocate as many pointers as there are audio channels.
> + * Each pointer will later point to the audio samples of the
> corresponding
> + * channels (although it may be NULL for interleaved formats).
> + */
> + if (!(*converted_input_samples = calloc(output_codec_context->channels,
> sizeof(**converted_input_samples)))) {
> + fprintf(stderr, "Could not allocate converted input sample
> pointers\n");
> + return AVERROR(ENOMEM);
> + }
> +
> + /**
> + * Allocate memory for the samples of all channels in one consecutive
> + * block for convenience.
> + */
> + if ((error = av_samples_alloc(*converted_input_samples, NULL,
> output_codec_context->channels,
> + frame_size,
> output_codec_context->sample_fmt, 0)) < 0) {
> + fprintf(stderr, "Could not allocate converted input samples (error
> '%s')\n", get_error_text(error));
> + av_freep(&converted_input_samples[0]);
> + free(converted_input_samples);
> + return error;
> + }
> + return 0;
> +}
The line
free(converted_input_samples);
generates the following warning:
CC doc/examples/mp3_aac.o
In function ‘init_converted_samples.isra.1’,
inlined from ‘read_decode_convert_and_store’ at
doc/examples/mp3_aac.c:479:35,
inlined from ‘main’ at doc/examples/mp3_aac.c:694:46:
doc/examples/mp3_aac.c:379:13: warning: attempt to free a non-heap object
‘converted_input_samples’ [enabled by default]
Diego
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